• Royal Enfield 1010139/B spacer speedodrive front wheel Bullet 500 Euro 4 OEM
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Royal Enfield 1010139/B – Spacer Speedodrive (Front Wheel Speedometer Drive Spacer) for Bullet 500 Euro 4, Classic 500 Euro 4 & Bullet Trials 500 Euro 4 | Genuine OEM

Royal Enfield 1010139/B – Spacer Speedodrive (Front Wheel Speedometer Drive Spacer) for Bullet 500 Euro 4, Classic 500 Euro 4 & Bullet Trials 500 Euro 4 | Genuine OEM

Rs. 55.00
Rs. 55.00
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Important Order Policy
Please order only after confirming the part number, model, variant, year, side, connector type and compatibility. All orders are non-cancellable once placed. Correctly shipped spare parts are not eligible for return, exchange or refund due to wrong selection, wrong diagnosis, fitment mismatch, mechanic recommendation or change of mind. Electrical/electronic items are additionally non-returnable once opened, installed, plugged in, tested or used. Wrong item, damaged item or missing item claims require a complete unboxing video within 24 hours. Read full Return & Warranty Policy

Royal Enfield 1010139/B is the genuine OEM Spacer (Speedodrive) used in the front wheel speedometer drive (speedo drive) assembly on select UCE 500 Euro-4 motorcycles. It ensures correct spacing/alignment of the speedo drive components so the front wheel rotates freely without side-load, rubbing, or incorrect fitment at the hub/drive interface. 

This spacer is typically needed during a front wheel rebuild, speedo drive servicing, hub work, or when a workshop loses/mismatches spacers during wheel removal. The wrong spacer (or missing spacer) can cause issues like improper wheel seating, abnormal speedo drive wear, or persistent “something is rubbing” complaints after refitting the front wheel. OEM is strongly recommended here because spacer dimensions must match the factory wheel stack-up. 

Replacement note: Royal Enfield listings show 1010139/A (Spacer Speedodrive) is replaced by 1010139/B, so 1010139/B is the correct current supply when your microfiche references 1010139/A. 

Key Features

  • Genuine Royal Enfield OEM part number 1010139/B 

  • Part function: Spacer – Speedodrive (front wheel speedometer drive spacing) 

  • Used in Front Wheel assemblies on confirmed Euro-4 UCE 500 models 

  • Ensures correct hub/drive stack alignment during front wheel installation

  • Prevents common workshop errors: missing spacer / wrong spacer thickness

  • Supersession clarity: 1010139/A → 1010139/B 

  • Sold as single spacer (1 pc) (order quantity as per microfiche requirement) 

Compatibility Table 

Only models explicitly shown in the cited sources are listed as confirmed.

Model Engine / Platform Stage Years
Bullet Trials 500 Euro 4 UCE 500 EFI Euro 4 Euro-4 production (verify by VIN) 
Bullet 500 Euro 4 (B5 family) UCE 500 EFI Euro 4 Euro-4 production (verify by VIN) 
Classic 500 Euro 4 (C5 family) UCE 500 EFI Euro 4 Euro-4 production (verify by VIN) 

Fitment gate (return control): Please confirm your parts diagram shows Spacer Speedodrive = 1010139/B (or 1010139/A replaced by 1010139/B) before ordering. 

Variants

  • 1010139/B (Current / active part number) 

  • 1010139/A (Older: Spacer Speedodrive) → replaced by 1010139/B 

FAQs 

  1. What is Royal Enfield 1010139/B used for?
    1010139/B is the OEM Spacer (Speedodrive) used in the front wheel speedometer drive stack on Euro-4 UCE 500 models, ensuring correct spacing and alignment during wheel fitment. 

  2. Is 1010139/B the replacement for 1010139/A?
    Yes. Royal Enfield parts listings show 1010139/A (Spacer Speedodrive) with replacement part number 1010139/B. 

  3. Which bikes are confirmed for this spacer?
    Confirmed for Bullet Trials 500 Euro 4, and the Euro-4 B5/C5 family (Bullet 500 Euro 4 and Classic 500 Euro 4) via parts-book references.

  4. My front wheel makes rubbing/noise after wheel refit—can a spacer cause that?
    Yes. A missing or wrong spacer in the front wheel/speedo drive stack can create misalignment and rubbing. This part is commonly bought after wheel service when the wheel doesn’t seat correctly. Always verify the full spacer stack and correct assembly sequence (mechanic recommended). 

  5. Is it sold as a full kit or single piece? How many do I need?
    This listing is for one spacer (single piece). Quantity required is typically 1 in parts books for the relevant position; confirm with your microfiche to avoid ordering the wrong count.

Verify Fitment on Official Brand Portals

For selected genuine spare parts, you can cross-check the part number on the official brand portals before ordering.

Royal Enfield Official Spares Portal

Hero MotoCorp Official eCatalogue

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