BB Adapter Series-Interlock
- Interlock design to reduce noise issues & give Excellent rigidity.
- Adapters from 30mm to 24 mm axle compatible with Shimano or SRAM and BSA/BB30/PF30 to 386 system.
- Active seals to easily maintain bearings & add grease.
- Double O-ring design to prevent water entering frame & as buffer between frame and BB.
- Compatible with 68/73mm frame width.
- Easily tighten up with locking kits.
Ceramic: 
Stainless Steel: 
| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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| BB30 to 24 |
Shimano | 24/24 | 68 | 42 | |
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| 73 | |
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| SRAM | 24/22 | 68 | 42 | |
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| 73 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
|---|---|---|---|---|---|---|---|
| PF30 to 24 |
Shimano | 24/24 | 68 | 46 | |
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| 73 | |
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| SRAM | 24/22 | 68 | 46 | |
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| 73 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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| BB30A to 24 |
Shimano | 24/24 | 73 | 42 | |
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| 24/24 | |
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| SRAM | 24/22 | 73 | 42 | |
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| 24/22 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
|---|---|---|---|---|---|---|---|
| PF30A to 24 |
Shimano | 24/24 | 73 | 46 | |
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| 24/24 | |
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| SRAM | 24/22 | 73 | 46 | |
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| 24/22 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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| BB Right BB30 to 24 |
Shimano | 24/24 | 79 | 42 | |
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| SRAM | 24/22 | 79 | 42 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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| BB Right PF30 to 24 |
Shimano | 24/24 | 79 | 46 | |
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| SRAM | 24/22 | 79 | 46 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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| BB30 to 386 |
Rotor+ 3D/SRAM/FSA |
30 | 68 | 42 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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| PF30 to 386 |
Rotor+3D/ SRAM/FSA |
30 | 68 | 46 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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| BB386 to 24 |
Shimano | 24/24 | 86.5 | 46 | |
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| SRAM | 24/22 | 86.5 | 46 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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| OSPF3024 | Shimano | 24/24 | 61 | 46 | |
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| SRAM | 24/22 | 61 | 46 | |
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| CEMA PN. | Type | Compatible | Axle (mm) | Width (mm) | BB Shell OD | Bearing | Color |
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SRC-BT-PF30BSAB |
PF30 to BSA |
Shimano BSA | 24/24 | 68/73 | 1.37" X 24T | N/A |
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SRC-BT-PF30BSAR |
SRAM BSA | 24/22 | |