Royal Enfield 888133 Ball Race Kit With Cover (Steering Cone Set) – Thunderbird 350 / Thunderbird 500 (UCE)

Restore tight, smooth steering on your Royal Enfield Thunderbird with the Genuine OEM Ball Race Kit With Cover – Part No. 888133. This is the steering-head bearing “cup & cone / ball racer / steering cone set” used in the Thunderbird 350 & Thunderbird 500 front fork / steering stem assembly.

If your bike shows handlebar play, wobble, heavy steering, or a “tak-tak” knock while braking, worn steering races/balls are a common cause. Replacing the full kit helps bring back stable handling and reduces unsafe free-play at the steering neck.

This listing is intentionally strict on fitment to reduce wrong orders: 888133 is confirmed for Thunderbird models, and it is commonly confused with Classic/Bullet steering kits which use different part numbers.
Before ordering, match your bike model exactly and (recommended) verify via VIN/EPC or share a photo of your existing steering set for confirmation.

Key Features 

• Genuine Royal Enfield OEM part (MPN 888133)

• Product name: Ball Race Kit With Cover – TB 350 & 500C

• Designed for steering-head bearing overhaul (steering cone/ball racer set)

• Helps fix: wobble, handlebar play, notchy steering, braking knock

• Return-prevention: do not buy for Classic/Bullet/J-Series (different steering kits)

• Recommended to install with proper bearing preload + torque procedure (mechanic advised)

• Ideal during fork service, headstock overhaul, or crash/impact inspection

Compatibility Table 

Variants (LH/RH, finish, kit/single, etc. only if verified)

• No variants (single kit, one part number: 888133)

Verified Fitment & Return-Prevention Gate 

• Verified part identity: 888133 = “BALL RACE KIT WITH COVER – TB 350 & 500C”

• Confirmed application: Thunderbird 350 / Thunderbird 500 (UCE family)

• Before you order (must-do):

  • Check your RC / model: Thunderbird (not Classic/Bullet)

  • If possible, verify via VIN/EPC (Royal Enfield parts portal / microfiche)

  • Match the existing steering race set / take a photo for confirmation

• If model/fitment is uncertain: do not order until verified (prevents wrong deliveries/returns)

Exclusions / Not Compatible 

• Not for Classic 350 / Classic 500 (UCE)

• Not for Bullet / Standard (UCE)

• Not for any J-Series (Classic Reborn, Meteor, Hunter, Bullet J)

• Not for 650 Twins / Himalayan / Scram

FAQs 

1. What is 888133 used for?
   It’s the steering head bearing kit (ball race / steering cone set) for Thunderbird 350/500.

2. My handlebar has play / “tak-tak” sound on braking — is this the fix?
   Often yes, worn steering races/balls cause play/knock. Inspect the steering stem and replace the kit if pitted/notchy.

3. Will 888133 fit Classic 350 or Standard/Bullet?
   No. Classic/Standard/Bullet typically use different part numbers for steering kits. Order only after model verification.

4. Is this a “ball racer / cone set / steering cone” people ask for locally?
   Yes — common slang terms include ball racer, cone set, steering cone, steering kit.

5. Do I need any extra parts with this kit?
   Usually you may also need correct grease + correct torque/preload setup. If your steering stem is damaged, bearings alone won’t solve wobble.

6. How do I verify fitment before ordering?
   Share VIN  for EPC check, or send a clear photo of your current steering bearing/race set.