BMC Speedmachine 00 / 01 Headset Bearing Set OEM
BMC Speedmachine 00 / 01 Headset Bearing Set OEM
Stage 21 Bikes
23582 Moulton Parkway
#111
Laguna Woods CA 92637
United States
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BMC Speedmachine 00 / 01 Headset Bearing Set
Factory Replacement | Enduro Bearings | Speedmachine Gen 1 | 30006294
The BMC Speedmachine 00 / 01 Factory Replacement Headset Bearing Set is the OEM replacement bearing kit for compatible Speedmachine Gen 1 frames.
The kit includes premium Enduro Bearings stainless steel angular contact bearings for both the upper and lower headset positions. Each bearing uses a 45° × 45° contact angle and matches the factory dimensions required for proper headset fit, steering alignment, and smooth operation.
Available from Stage 21 Bikes, your trusted source for hard-to-find OEM replacement parts.
Key Features
- Factory replacement headset bearing set for BMC Speedmachine
- Compatible with Speedmachine Gen 1 Series
- Includes both upper and lower headset bearings
- Genuine Enduro Bearings components
- Stainless steel bearing construction
- 45° × 45° angular contact configuration
- Ideal for headset service, rebuilds, or worn bearing replacement
- BMC MPN 30006294
Kit Includes
- 1 × Enduro Bearings ACB 4545 1125T SS-bx Upper Bearing
- 1 × Enduro Bearings ACB 4545 125L SS-blk Lower Bearing
Specifications
| Specification | Upper Bearing | Lower Bearing |
|---|---|---|
| Manufacturer | Enduro Bearings | Enduro Bearings |
| Bearing Model | ACB 4545 1125T SS-bx | ACB 4545 125L SS-blk |
| Inside Diameter | 30.15mm | 34.1mm |
| Outside Diameter | 41mm | 46.8mm |
| Thickness | 7mm | 7mm |
| Bearing Angle | 45° × 45° | 45° × 45° |
| Nominal Size | 1.125" | 1.25" |
| Material | Stainless Steel | Stainless Steel |
| Reference | — | HS 970 |
Compatibility
Compatible with:
- BMC Speedmachine Gen 1 Series
- Speedmachine 00
- Speedmachine 01
Compatibility Notes
- Designed for compatible BMC Speedmachine Gen 1 headset systems.
- Includes headset bearings only.
- Verify bearing dimensions before installation.
- Upper bearing specification: 30.15 × 41 × 7mm, 45° × 45°.
- Lower bearing specification: 34.1 × 46.8 × 7mm, 45° × 45°.
- Confirm BMC MPN 30006294 before ordering if replacing the original factory headset bearings.
Factory-Correct Speedmachine Headset Service
Worn or contaminated headset bearings can cause rough steering, play, or inconsistent headset adjustment. Replacing them with the correct factory-spec bearings restores the intended fit and smooth operation of the Speedmachine front end.
BMC 30006294 includes the correct Enduro Bearings upper and lower stainless steel angular contact bearingsrequired for compatible Speedmachine Gen 1 applications.
Stage 21 Bikes carries genuine OEM replacement components and hard-to-find service parts for premium road, triathlon, mountain, and gravel bikes.