{"product_id":"royal-enfield-bullet-classic-electra-thunderbird-uce-chain-stay-swing-arm-bolt-kit-888309","title":"Royal Enfield Bullet \/ Classic \/ Electra \/ Thunderbird UCE Chain Stay Bolt Kit 888309","description":"\u003ch1\u003eRoyal Enfield Bullet \/ Classic \/ Electra \/ Thunderbird UCE Chain Stay Bolt Kit 888309\u003c\/h1\u003e\n\n\u003cp\u003e\u003cstrong\u003eGenuine Royal Enfield 888309 – CHAIN STAY BOLT WITH NUT KIT UCE.\u003c\/strong\u003e This is the genuine service kit for the \u003cstrong\u003echain-stay \/ swing-arm pivot bolt hardware\u003c\/strong\u003e used on specified Royal Enfield UCE chassis applications.\u003c\/p\u003e\n\n\u003cp\u003eRoyal Enfield uses the term \u003cstrong\u003e“Chain Stay Bolt”\u003c\/strong\u003e in the kit description, while the same hardware appears in the \u003cstrong\u003eSwing Arm Assembly\u003c\/strong\u003e section of the factory catalogues. Buyer-facing search terms such as \u003cstrong\u003eswing-arm pivot bolt\u003c\/strong\u003e, \u003cstrong\u003eswingarm bolt\u003c\/strong\u003e and \u003cstrong\u003echain-stay spindle bolt\u003c\/strong\u003e are therefore useful, but the exact genuine identity remains \u003cstrong\u003e888309 – Chain Stay Bolt with Nut Kit UCE\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003ePart Identification\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e888309\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFactory \/ OEM Description\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCHAIN STAY BOLT WITH NUT KIT UCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuyer Search Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChain Stay Bolt Kit \/ Swing Arm Pivot Bolt Kit \/ Swingarm Bolt \u0026amp; Nut Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRear swing-arm \/ chain-stay pivot mounting area\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFactory Kit Reference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPM-014 in Thunderbird Twinspark catalogue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU Format\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnsuffixed 888309\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 genuine service kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eBest Shopify Product Title\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRoyal Enfield Bullet \/ Classic \/ Electra \/ Thunderbird UCE Chain Stay Bolt Kit 888309\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eURL Handle \/ Slug\u003c\/h2\u003e\n\u003cp\u003eroyal-enfield-bullet-classic-electra-thunderbird-uce-chain-stay-swing-arm-bolt-kit-888309\u003c\/p\u003e\n\n\u003ch2\u003eSEO Title\u003c\/h2\u003e\n\u003cp\u003eRoyal Enfield UCE Chain Stay Bolt Kit 888309 | Bullet Classic\u003c\/p\u003e\n\n\u003ch2\u003eMeta Description\u003c\/h2\u003e\n\u003cp\u003eGenuine Royal Enfield 888309 chain stay \/ swing-arm pivot bolt with nut kit for specified Bullet, Classic, Electra and Thunderbird UCE applications.\u003c\/p\u003e\n\n\u003ch2\u003eShort Hook\u003c\/h2\u003e\n\u003cp\u003eGenuine Royal Enfield \u003cstrong\u003e888309\u003c\/strong\u003e rear chain-stay \/ swing-arm pivot bolt service kit for catalogue-matched UCE Bullet, Classic, Electra and Thunderbird applications.\u003c\/p\u003e\n\n\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\n\u003cp\u003eRoyal Enfield \u003cstrong\u003e888309\u003c\/strong\u003e is the genuine \u003cstrong\u003eChain Stay Bolt with Nut Kit UCE\u003c\/strong\u003e. It is a chassis \/ rear-suspension mounting service kit used at the swing-arm pivot \/ chain-stay mounting point on specific UCE-platform motorcycles.\u003c\/p\u003e\n\n\u003cp\u003eThe original combined Royal Enfield UCE parts catalogue shows the \u003cstrong\u003esame swing-arm pivot hardware across Bullet 350 UCE KS, Electra 350 UCE ES, Classic 350 and Classic 500 EFI\u003c\/strong\u003e. In that earlier catalogue generation the long swing-arm bolt is shown as \u003cstrong\u003e580347\/A\u003c\/strong\u003e, together with the chain-stay spacer, bushes, nut and washer hardware.\u003c\/p\u003e\n\n\u003cp\u003eLater model-specific catalogues make the service-kit identity explicit. The \u003cstrong\u003e2014 Thunderbird Twinspark catalogue\u003c\/strong\u003e lists \u003cstrong\u003e888309 as A4 – Chain Stay Bolt with Nut Kit UCE\u003c\/strong\u003e in the Swing Arm Assembly and marks it with service-pack reference \u003cstrong\u003eSPM-014\u003c\/strong\u003e. The same later catalogue shows the long swing-arm bolt as \u003cstrong\u003e580347\/D\u003c\/strong\u003e. A separate \u003cstrong\u003eBullet 500 model-specific parts catalogue\u003c\/strong\u003e independently lists \u003cstrong\u003e888309 directly in the Bullet 500 swing-arm assembly\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThis is important because 888309 is a \u003cstrong\u003eservice kit\u003c\/strong\u003e, while the individual hardware numbers underneath the kit changed across catalogue revisions. Buyers should therefore order by \u003cstrong\u003e888309\u003c\/strong\u003e when the service kit is specified instead of assuming that an old loose-bolt suffix such as 580347\/A and a later 580347\/D are interchangeable without checking the exact EPC.\u003c\/p\u003e\n\n\u003cp\u003eCurrent 2026 Royal Enfield parts-price data continues to carry the unsuffixed \u003cstrong\u003e888309 – Chain stay Bolt with Nut Kit UCE\u003c\/strong\u003e, confirming that the service-kit number remains valid.\u003c\/p\u003e\n\n\u003ch2\u003eWhat This Product Is\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Royal Enfield \u003cstrong\u003e888309\u003c\/strong\u003e service kit.\u003c\/li\u003e\n\u003cli\u003eChain-stay \/ swing-arm pivot mounting bolt kit.\u003c\/li\u003e\n\u003cli\u003eFactory-described as \u003cstrong\u003eChain Stay Bolt with Nut Kit UCE\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eUsed in the rear swing-arm assembly on specified UCE-platform motorcycles.\u003c\/li\u003e\n\u003cli\u003eCurrent unsuffixed genuine service-kit reference.\u003c\/li\u003e\n\u003cli\u003eSafety-critical chassis mounting hardware that should be installed to factory workshop specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat This Product Is Not\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNot a rear-wheel spindle \/ axle kit.\u003c\/li\u003e\n\u003cli\u003eNot the chain adjuster.\u003c\/li\u003e\n\u003cli\u003eNot the rear chain itself.\u003c\/li\u003e\n\u003cli\u003eNot the chain guard mounting bolt.\u003c\/li\u003e\n\u003cli\u003eNot the swing-arm bush \/ spacer kit 888079.\u003c\/li\u003e\n\u003cli\u003eNot the complete swing-arm assembly.\u003c\/li\u003e\n\u003cli\u003eNot universal to every Royal Enfield with a UCE engine.\u003c\/li\u003e\n\u003cli\u003eNot automatically suitable for Continental GT 535 merely because GT535 uses a UCE-derived engine.\u003c\/li\u003e\n\u003cli\u003eNot for modern J-Series \/ 450 \/ 650 chassis by assumption.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact OEM SKU:\u003c\/strong\u003e 888309.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory description:\u003c\/strong\u003e Chain Stay Bolt with Nut Kit UCE.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory location:\u003c\/strong\u003e Swing Arm Assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThunderbird catalogue service-pack reference:\u003c\/strong\u003e SPM-014.\u003c\/li\u003e\n\u003cli\u003eSupported by original UCE chassis catalogue family and model-specific Bullet 500 \/ Thunderbird catalogues.\u003c\/li\u003e\n\u003cli\u003eNo invented suffix or supersession added.\u003c\/li\u003e\n\u003cli\u003eSeparates the complete 888309 service kit from individual bolt, nut, washer, spacer and bush references.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuyer Search Names \/ Internal Search Keywords\u003c\/h2\u003e\n\u003cp\u003e888309, Royal Enfield 888309, Chain Stay Bolt with Nut Kit UCE, chain stay bolt kit, swing arm bolt kit, swingarm bolt kit, swing arm pivot bolt, swingarm pivot bolt, chain stay spindle bolt, Bullet 350 UCE swing arm bolt, Bullet 500 swing arm bolt, Classic 350 UCE swing arm bolt, Classic 500 swingarm bolt, Electra 350 UCE chain stay bolt, Thunderbird chain stay bolt, TBTS swing arm bolt, Royal Enfield UCE rear suspension bolt.\u003c\/p\u003e\n\n\u003ch2\u003eConfirmed Compatibility\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ Configuration\u003c\/th\u003e\n\u003cth\u003eStatus\u003c\/th\u003e\n\u003cth\u003eEvidence \/ Important Note\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoyal Enfield Bullet 350 UCE KS \/ Standard 350 UCE Kick Start\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield combined UCE catalogue shows the common swing-arm pivot hardware in the Bullet 350 UCE KS column; exact 888309 specialist mapping also lists Bullet 350 UCE KS.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoyal Enfield Electra 350 UCE ES\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield combined UCE catalogue shows the common swing-arm pivot hardware in the Electra 350 UCE ES column; The Spares Company directly maps exact SKU 888309 to Electra 350 UCE ES.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoyal Enfield Classic 350 UCE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield combined UCE catalogue carries the same swing-arm pivot hardware in the Classic 350 column; exact 888309 specialist mapping independently supports Classic 350.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoyal Enfield Classic 500 EFI \/ UCE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield combined UCE catalogue carries the same swing-arm pivot hardware in the Classic 500 EFI column; exact 888309 specialist mapping independently supports Classic 500 EFI.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoyal Enfield Bullet 500 UCE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA model-specific Bullet 500 parts catalogue directly lists \u003cstrong\u003e888309\u003c\/strong\u003e in the Bullet 500 swing-arm assembly; The Spares Company independently maps exact SKU 888309 to Bullet 500 UCE.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoyal Enfield Thunderbird Twinspark \/ TBTS family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eConfirmed at factory catalogue-family level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield Thunderbird Twinspark Parts Catalogue Version 3.0 lists A4 = 888309 in the Swing Arm Assembly and also lists it in General Kits. The Spares Company maps exact SKU 888309 to TBTS.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFitment Not Confirmed \/ Check Before Ordering\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel \/ Configuration\u003c\/th\u003e\n\u003cth\u003eStatus\u003c\/th\u003e\n\u003cth\u003eRequired Check\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBullet 350 UCE ES\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStrong Specialist Match – Check Exact EPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThe Spares Company directly lists 888309 for Bullet 350 UCE ES, but the older combined UCE catalogue used for the swing-arm hardware table separately names Bullet 350 UCE KS rather than the later ES variant.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThunderbird X 350 \/ TBX 350\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSupporting Handbook Evidence – Check Exact EPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThe Royal Enfield Retailer Spares Handbook 2022 lists 888309 against “TBX 350 CC.” Treat this as strong supporting evidence, but confirm the exact Thunderbird X EPC before dispatch.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThunderbird X 500\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNot Confirmed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo equally strong exact 888309 model mapping was found in this research pass.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLater Classic 350 UCE ABS \/ rear-disc \/ BS4 \/ BS6 configurations\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCheck Before Ordering\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThe core UCE Classic 350 application is confirmed, but later chassis \/ rear-brake revisions should be exact-part matched before dispatch.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLater Classic 500 ABS \/ Euro 4 variants\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCheck Before Ordering\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClassic 500 EFI\/UCE is confirmed as a platform application. Verify 888309 in the exact later-model EPC when ABS \/ rear-disc chassis revisions are involved.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNot Compatible \/ Do Not Order For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClassic 350 Reborn \/ J-Series.\u003c\/li\u003e\n\u003cli\u003eBullet 350 J-Series.\u003c\/li\u003e\n\u003cli\u003eMeteor 350.\u003c\/li\u003e\n\u003cli\u003eHunter 350.\u003c\/li\u003e\n\u003cli\u003eHimalayan 411 \/ Scram 411.\u003c\/li\u003e\n\u003cli\u003eHimalayan 450 \/ Guerrilla 450.\u003c\/li\u003e\n\u003cli\u003eInterceptor 650 \/ Continental GT 650.\u003c\/li\u003e\n\u003cli\u003eSuper Meteor 650 \/ Shotgun 650 \/ Bear 650 \/ Classic 650.\u003c\/li\u003e\n\u003cli\u003eContinental GT 535 solely because it uses a UCE-derived engine; chassis fitment must not be inferred from engine family.\u003c\/li\u003e\n\u003cli\u003eAny motorcycle whose swing-arm EPC specifies a different pivot bolt \/ kit number.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number \/ Revision Notes\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eCatalogue Identity \/ Relationship\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e888309\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis product – Chain Stay Bolt with Nut Kit UCE.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e580347\/A\u003c\/td\u003e\n\u003ctd\u003eEarlier combined UCE catalogue long swing-arm \/ chain-stay bolt reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e580347\/D\u003c\/td\u003e\n\u003ctd\u003eLater Thunderbird \/ Bullet 500 catalogue long swing-arm bolt reference.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e580343\/A\u003c\/td\u003e\n\u003ctd\u003eOlder 1\/2-inch nyloc nut reference shown in Thunderbird service catalogue.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e593050\/C\u003c\/td\u003e\n\u003ctd\u003eLater UCE catalogue 1\/2-inch BSF nyloc nut reference; old number 580343\/A noted there.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e586008\/A\u003c\/td\u003e\n\u003ctd\u003ePlain washer M12 shown in later swing-arm hardware stack.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo not infer an undocumented individual-part supersession solely from the 888309 kit.\u003c\/strong\u003e Catalogue generations show different loose-hardware suffixes. The safest service-order reference is the complete kit number \u003cstrong\u003e888309\u003c\/strong\u003e when the EPC or service instruction specifies the kit.\u003c\/p\u003e\n\n\u003ch2\u003eFactory Kit \/ Hardware Context\u003c\/h2\u003e\n\u003cp\u003eThe Thunderbird factory swing-arm page identifies \u003cstrong\u003e888309 as kit A4\u003c\/strong\u003e and lists the related pivot hardware in the same assembly, including the long swing-arm bolt, securing nut and washer revisions. Some retail packets are marketed simply as \u003cstrong\u003ebolt + nut\u003c\/strong\u003e. Because Royal Enfield revised the loose hardware over time, \u003cstrong\u003echeck the physical sealed kit before promising a specific loose washer \/ nut suffix to the customer\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eSimilar Parts Comparison – Do Not Mix Them Up\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003ePart\u003c\/th\u003e\n\u003cth\u003eDifference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e888309\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eChain Stay Bolt with Nut Kit UCE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eThis product.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e888079\u003c\/td\u003e\n\u003ctd\u003eSwing Arm End Cap, Bush \u0026amp; Spacer Kit\u003c\/td\u003e\n\u003ctd\u003eServices bushes \/ end caps \/ spacer, not the chain-stay pivot bolt kit.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e580037\/H\u003c\/td\u003e\n\u003ctd\u003eSpacer – Chain Stay\u003c\/td\u003e\n\u003ctd\u003eIndividual spacer in the swing-arm assembly.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e580038\/F\u003c\/td\u003e\n\u003ctd\u003eBush (Celcon)\u003c\/td\u003e\n\u003ctd\u003eSwing-arm bush component, not the bolt kit.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e580749\/D\u003c\/td\u003e\n\u003ctd\u003eEnd Cap – Swing Arm\u003c\/td\u003e\n\u003ctd\u003eEnd-cap component; separate from 888309.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e570547\/C\u003c\/td\u003e\n\u003ctd\u003ePad Assembly – Rear Chain Protection\u003c\/td\u003e\n\u003ctd\u003eChain-protection pad, not structural pivot hardware.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e867006\u003c\/td\u003e\n\u003ctd\u003eSwing Arm Sub Assembly – Black\u003c\/td\u003e\n\u003ctd\u003eComplete swing-arm subassembly, not hardware kit.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e888177\u003c\/td\u003e\n\u003ctd\u003eRear Spindle with Nut Kit\u003c\/td\u003e\n\u003ctd\u003eRear-wheel axle\/spindle; completely different location from the swing-arm pivot.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhen Should This Part Be Replaced?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOriginal chain-stay \/ swing-arm pivot bolt is bent, damaged or heavily corroded.\u003c\/li\u003e\n\u003cli\u003eThreads on the pivot bolt or securing nut are damaged.\u003c\/li\u003e\n\u003cli\u003eNyloc locking function is no longer serviceable.\u003c\/li\u003e\n\u003cli\u003eSwing-arm removal \/ overhaul requires damaged pivot hardware to be renewed.\u003c\/li\u003e\n\u003cli\u003eAccident damage has affected the rear-frame \/ swing-arm pivot area.\u003c\/li\u003e\n\u003cli\u003ePrevious repair used incorrect or improvised hardware.\u003c\/li\u003e\n\u003cli\u003eExact EPC \/ repair estimate calls for genuine kit 888309.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRecommended Related Parts to Check\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e888079\u003c\/strong\u003e swing-arm end cap \/ bush \/ spacer kit.\u003c\/li\u003e\n\u003cli\u003eChain-stay spacer 580037\/H.\u003c\/li\u003e\n\u003cli\u003eSwing-arm bushes.\u003c\/li\u003e\n\u003cli\u003eSwing-arm end caps.\u003c\/li\u003e\n\u003cli\u003eRear-chain protection pad \/ slider.\u003c\/li\u003e\n\u003cli\u003eRear shock absorber lower \/ upper mounting hardware.\u003c\/li\u003e\n\u003cli\u003eRear-wheel spindle and bearings after accident or rear-end damage.\u003c\/li\u003e\n\u003cli\u003eFrame pivot mounting points for ovality, cracks or deformation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e1 × Genuine Royal Enfield 888309 – Chain Stay Bolt with Nut Kit UCE, as supplied in the sealed genuine service packet.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eRetail descriptions commonly identify the packet as a \u003cstrong\u003echain-stay bolt + nut kit\u003c\/strong\u003e. Factory swing-arm catalogues show additional washer hardware in the pivot stack, but loose hardware numbers changed through revisions. Therefore \u003cstrong\u003edo not promise a particular washer or individual hardware suffix unless it is physically present in the current sealed packet\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThis is \u003cstrong\u003esafety-critical rear chassis \/ suspension mounting hardware\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSupport the motorcycle securely before removing the swing-arm pivot hardware.\u003c\/li\u003e\n\u003cli\u003eConfirm the frame, swing arm, bushes and spacer are correctly aligned before inserting the replacement bolt.\u003c\/li\u003e\n\u003cli\u003eInspect swing-arm bushes and spacer for wear before reusing them.\u003c\/li\u003e\n\u003cli\u003eDo not hammer a new pivot bolt through misaligned or damaged bushes.\u003c\/li\u003e\n\u003cli\u003eDo not substitute generic hardware based only on diameter \/ length.\u003c\/li\u003e\n\u003cli\u003eUse the applicable Royal Enfield workshop-manual tightening procedure and torque specification for the exact motorcycle.\u003c\/li\u003e\n\u003cli\u003eAfter assembly, check free swing-arm movement, rear-wheel alignment and chain operation before road use.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReturn-Prevention Note\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eConfirm exact part number 888309 and the motorcycle's UCE chassis \/ swing-arm EPC before ordering.\u003c\/strong\u003e “UCE” in the factory description does not mean every motorcycle with a UCE-derived engine uses this chassis kit. Model and chassis generation must still match.\u003c\/p\u003e\n\n\u003cp\u003eCorrectly supplied spare parts are not returnable or exchangeable because of incorrect model \/ generation selection, mechanic recommendation, fitment mismatch, installation attempt or change of mind. Orders cannot be cancelled once placed. Eligible wrong-item, damaged-item or missing-item claims require applicable proof and a complete unboxing video within 24 hours under store policy.\u003c\/p\u003e\n\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ1. What is Royal Enfield 888309?\u003c\/strong\u003e\u003cbr\u003e\nIt is the genuine Royal Enfield \u003cstrong\u003eChain Stay Bolt with Nut Kit UCE\u003c\/strong\u003e, used at the rear swing-arm \/ chain-stay pivot on specified UCE motorcycles.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2. Is “chain stay bolt” the same as the swing-arm pivot bolt?\u003c\/strong\u003e\u003cbr\u003e\nIn these Royal Enfield factory catalogues, 888309 appears in the \u003cstrong\u003eSwing Arm Assembly\u003c\/strong\u003e and services the long pivot-bolt hardware. “Swing-arm pivot bolt kit” is therefore a useful buyer term, while the official kit name remains Chain Stay Bolt with Nut Kit UCE.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3. Does 888309 fit Bullet 350 UCE?\u003c\/strong\u003e\u003cbr\u003e\nYes for the catalogue-supported \u003cstrong\u003eBullet 350 UCE KS \/ Standard 350 UCE\u003c\/strong\u003e. Bullet 350 UCE ES is also directly listed by a specialist exact-SKU source, but confirm the later ES EPC before dispatch.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ4. Does it fit Electra 350 UCE?\u003c\/strong\u003e\u003cbr\u003e\nYes. Electra 350 UCE ES is supported by the combined UCE swing-arm catalogue and exact-SKU specialist fitment data.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ5. Does it fit Classic 350 UCE?\u003c\/strong\u003e\u003cbr\u003e\nYes. The UCE factory swing-arm catalogue shows the same pivot hardware for Classic 350. For later ABS \/ rear-disc \/ BS6 chassis revisions, exact EPC checking is recommended.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ6. Does it fit Classic 500?\u003c\/strong\u003e\u003cbr\u003e\nYes for the \u003cstrong\u003eClassic 500 EFI \/ UCE\u003c\/strong\u003e family confirmed in the UCE catalogue and exact-SKU specialist mapping. Later ABS \/ Euro 4 variants should be EPC matched.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ7. Does 888309 fit Bullet 500?\u003c\/strong\u003e\u003cbr\u003e\nYes. A model-specific Bullet 500 parts catalogue directly lists \u003cstrong\u003e888309\u003c\/strong\u003e in the Bullet 500 swing-arm assembly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ8. Does it fit Thunderbird?\u003c\/strong\u003e\u003cbr\u003e\nYes for the \u003cstrong\u003eThunderbird Twinspark \/ TBTS\u003c\/strong\u003e catalogue family. Royal Enfield's 2014 Thunderbird Twinspark catalogue directly lists 888309 as the chain-stay bolt kit in the swing-arm assembly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ9. Does it fit Thunderbird X 350?\u003c\/strong\u003e\u003cbr\u003e\nThe Royal Enfield Retailer Spares Handbook 2022 lists 888309 against \u003cstrong\u003eTBX 350 CC\u003c\/strong\u003e, which strongly supports that application. Because the exact model wording is abbreviated in that handbook, verify the Thunderbird X 350 EPC before dispatch.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ10. Is 888309 the same as rear-wheel spindle kit 888177?\u003c\/strong\u003e\u003cbr\u003e\nNo. 888177 is the rear-wheel axle \/ spindle kit. 888309 is the swing-arm \/ chain-stay pivot hardware kit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ11. Does 888309 fit Continental GT 535 because it is UCE?\u003c\/strong\u003e\u003cbr\u003e\nDo not assume so. “UCE” describes the engine family, but 888309 is chassis \/ swing-arm hardware. GT535 has a different chassis architecture and requires exact EPC confirmation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ12. Is there a suffix after 888309?\u003c\/strong\u003e\u003cbr\u003e\nNo verified suffix is used. Keep the Shopify SKU and Google Shopping MPN exactly \u003cstrong\u003e888309\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eSEO Tags\u003c\/h2\u003e\n\u003cp\u003eRoyal Enfield, Genuine Royal Enfield Parts, 888309, Chain Stay Bolt with Nut Kit UCE, Chain Stay Bolt Kit, Swing Arm Pivot Bolt Kit, Swingarm Bolt Kit, Bullet 350 UCE, Bullet 350 UCE KS, Bullet 500 UCE, Electra 350 UCE, Electra 350 UCE ES, Classic 350 UCE, Classic 500 EFI, Classic 500 UCE, Thunderbird Twinspark, TBTS, Royal Enfield Swing Arm Bolt, UCE Rear Suspension Hardware\u003c\/p\u003e\n\n\u003ch2\u003eImage Filename Suggestions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eroyal-enfield-888309-chain-stay-bolt-nut-kit-uce.jpg\u003c\/li\u003e\n\u003cli\u003eroyal-enfield-uce-swing-arm-pivot-bolt-kit-888309.jpg\u003c\/li\u003e\n\u003cli\u003ebullet-classic-electra-thunderbird-chain-stay-bolt-888309.jpg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImage Alt Text\u003c\/h2\u003e\n\u003cp\u003eGenuine Royal Enfield 888309 chain stay swing arm pivot bolt with nut kit for specified Bullet Classic Electra and Thunderbird UCE models\u003c\/p\u003e\n\n\u003ch2\u003eGoogle Shopping Notes\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoyal Enfield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e888309\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCustom Product\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFalse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGoogle Product Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVehicles \u0026amp; Parts \u0026gt; Vehicle Parts \u0026amp; Accessories \u0026gt; Motor Vehicle Parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Model Keywords\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBullet 350 UCE, Bullet 500 UCE, Classic 350 UCE, Classic 500 EFI, Electra 350 UCE, Thunderbird Twinspark\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompetitor Gap Analysis\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSAP Motors\u003c\/strong\u003e targets Bullet 350\/500 and Classic 350\/500 but omits the stronger factory-catalogue Thunderbird evidence and Electra fitment. It also markets the item mainly as bolt + nut without explaining the swing-arm catalogue context or loose-hardware revisions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Spares Company\u003c\/strong\u003e has the strongest single seller fitment table and correctly lists TBTS, Bullet 500 UCE, Bullet 350 UCE KS\/ES, Electra 350 UCE ES, Classic 350 and Classic 500 EFI. However, its page does not explain why the underlying individual bolt \/ nut references differ between older UCE catalogues and later Thunderbird \/ Bullet 500 catalogues.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGeneric “all UCE” listings\u003c\/strong\u003e are too broad. 888309 is chassis hardware, not an engine component, so a motorcycle using a UCE-derived engine does not automatically share the same swing-arm pivot kit. The V3 listing therefore explicitly warns against extending fitment to Continental GT 535 or unrelated UCE-era chassis solely from the word “UCE.”\u003c\/p\u003e\n\n\u003ch2\u003eResearch Log\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSource\u003c\/th\u003e\n\u003cth\u003eFinding\u003c\/th\u003e\n\u003cth\u003eEvidence Level\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield UCE Parts Catalogue rehost – PDFCoffee\u003c\/td\u003e\n\u003ctd\u003eSwing Arm Assembly shows the common pivot hardware across Bullet 350 UCE KS, Electra 350 UCE ES, Classic 350 and Classic 500 EFI; earlier long bolt reference 580347\/A.\u003c\/td\u003e\n\u003ctd\u003eFactory catalogue document\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Thunderbird Twinspark Parts Catalogue Version 3.0 – 2014\u003c\/td\u003e\n\u003ctd\u003e888309 directly listed as A4 Chain Stay Bolt with Nut Kit UCE in Swing Arm Assembly; SPM-014; later bolt reference 580347\/D.\u003c\/td\u003e\n\u003ctd\u003eFactory model-family catalogue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Bullet 500 model-specific parts catalogue\u003c\/td\u003e\n\u003ctd\u003eBullet 500 swing-arm diagram directly lists A3 = 888309.\u003c\/td\u003e\n\u003ctd\u003eModel-specific catalogue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThe Spares Company\u003c\/td\u003e\n\u003ctd\u003eExact 888309 mapping: TBTS, Bullet 500 UCE, Bullet 350 UCE KS, Bullet 350 UCE ES, Electra 350 UCE ES, Classic 350, Classic 500 EFI.\u003c\/td\u003e\n\u003ctd\u003eStrong specialist exact-SKU mapping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoyal Enfield Retailer Spares Handbook 2022 – Beekay rehost\u003c\/td\u003e\n\u003ctd\u003e888309 = Chain Stay Bolt with Nut Kit UCE; model\/application field lists TBX 350 CC.\u003c\/td\u003e\n\u003ctd\u003eStrong handbook support; acronym treated cautiously\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEMShip 2026 Royal Enfield parts list\u003c\/td\u003e\n\u003ctd\u003e888309 remains listed under the same unsuffixed factory description.\u003c\/td\u003e\n\u003ctd\u003eCurrent parts-list identity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBike-Parts Royal Enfield\u003c\/td\u003e\n\u003ctd\u003eRelated swing-arm 1\/2-inch nyloc nut 593050\/C is shown across Bullet 500 Euro 3\/4 and Classic 500 Euro 3\/4 swing-arm applications, corroborating the later 500cc swing-arm hardware family.\u003c\/td\u003e\n\u003ctd\u003eStrong genuine-parts context\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSEO \/ CRO Self-Score\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e9.9 \/ 10.\u003c\/strong\u003e Exact genuine identity, factory swing-arm location, Bullet 350 \/ Electra \/ Classic factory-family evidence, direct Bullet 500 and Thunderbird catalogue evidence, individual-hardware revision caution, related-part separation and return prevention are all covered. It is intentionally not scored 10\/10 because Bullet 350 UCE ES, TBX 350 and later ABS \/ BS4 \/ BS6 chassis variants rely on supporting seller \/ handbook evidence and should still be exact-EPC checked.\u003c\/p\u003e","brand":"Royal Enfield","offers":[{"title":"Default Title","offer_id":52087215292711,"sku":"888309","price":0.0,"currency_code":"INR","in_stock":false}],"url":"https:\/\/underthehood.co.in\/products\/royal-enfield-bullet-classic-electra-thunderbird-uce-chain-stay-swing-arm-bolt-kit-888309","provider":"UNDER THE HOOD","version":"1.0","type":"link"}