Restore factory-tight rear suspension mounts with the genuine Royal Enfield RSU Sleeve – 148619/B. This steel sleeve sits inside the rear shock eye (Rear Suspension Unit/“RSU”) and supports the rubber bush, keeping the shock securely aligned on the bolt so the swingarm and shocks pivot smoothly without play. Using the correct OEM sleeve prevents ovalized bushes, clunks over bumps, and premature wear on mounting bolts.

Identity and function are verified: dealer catalogs list “148619/B – RSU, SLEEVE.” The official 650 Twins parts catalog lists the RSU sleeves in the Rear Suspension section for the Continental GT 650 and Interceptor 650 (Euro IV fiche shows 148619/A – RSU, SLEEVE; dealers currently stock the /B revision with the same description). We therefore restrict confirmed fitment to the 650 Twins to reduce returns. 

Use when replacing worn RSU bushes, repairing crash damage, or rebuilding shocks. OEM dimensions guarantee correct clamp load on the shock eye and proper chain/suspension geometry. Supplied as a single sleeve; order the quantity required for your service.

USED IN THE UPPER PART OF THE SHOKCER FOR BOTTOM BUSH ORDER PART NUMBER 148620/B

Key Features

• Genuine OEM RSU sleeve (148619/B) – correct hardness & dimensions for RE shocks. 

• Designed for the rear shock eye on Interceptor 650 / Continental GT 650. 

• Restores tight, play-free mounting; reduces bush and bolt wear.

• Direct replacement—no machining or shimming when used with OE bushes.

• Corrosion-resistant finish for long service life.

• Stock item on trusted Royal Enfield dealer portals.

Compatibility Table 

Notes: Dealers stock 148619/B (current suffix) as “RSU, SLEEVE.” Where the Euro-IV fiche shows 148619/A, the /B suffix is the current stocked sleeve with the same function/description. For Euro V (E5) Twins and other models (Super Meteor 650, Shotgun 650, J-series 350s, Himalayan, etc.) fitment not confirmed 

Variants 

• 148618/A – RSU Bush (mates with sleeve) 

• 148620/A – RSU Sleeve (second sleeve used in the assembly per fiche) (BOTTOM SLEEVE)

FAQs

Q1. What does “RSU” mean?
RSU = Rear Suspension Unit (rear shock absorber). The sleeve supports the rubber bush in the shock eye. 

Q2. How many sleeves do I need?
Order per shock eye you’re servicing; many rebuilds replace both sleeves and both bushes on the pair of shocks. Fiche shows two sleeves used in the rear suspension assembly.

Q3. Will this fit the Super Meteor 650 or J-series 350s?
❓ Not confirmed. Please share VIN/old-part label; we’ll fiche-check before dispatch.

Q4. Is this OEM or aftermarket?
Genuine Royal Enfield part, listed by authorised dealers as 148619/B – RSU, SLEEVE.