THM Bottom Bracket
| Article number: | 025-02-01 |
| Availability: | In stock (2) |
THM offers precision-engineered bottom brackets for their Clavicula, M3, and XC cranks, ensuring compatibility with various frame standards. Made from premium materials for minimal weight and maximum durability, each is optimized for specific shell designs.
Options include BSA, Italian threaded, and press-fit variants like BB30, PF30, BBRight, BB86, and BB386EVO. Hybrid ceramic bearings reduce friction and increase longevity. THM maintains strict tolerances for optimal power transfer and smooth rotation, covering all modern high-performance frame combinations.
BSA - Fits standard bottom bracket shells with English facing threads (1.37" x 24 TPI).
Italian - Fits standard bottom bracket shells with Italian facing threads (36mm x 24 TPI).
BB30 - Fits BB30 frames.
PF30 - Fits oversized BB30 frames, which are specifically Press Fit.
BB Right - Fits Cervelo and some 3T frames, shell is 11mm wider on the non-drive side
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- Direct Fit - Fits R5ca Frames only
- Press Fit - Fits all other Cervelo frames and some 3T frames
*Shimano PressFit - Compatible with BB86 frames.
**Specialized OSBB - Specialized's PF30 and OSBB standards are unique to some models of Specialized bikes. In other words, the PF30 on a Specialized is not the same PFC30 on another bike.
| Fits | Shell | Shell Width | Weights | Ceramic | |
| Diameter | Road | MTB | |||
| BSA (English) | 33.6 mm | 68 mm | 73 mm | ~72g | Yes |
| Italian | 36 mm | 70 mm | - | ~72g | Yes |
| T47 External | 47 mm | 68 mm | 73 mm | ~90g | Yes |
| T47 Internal | 47 mm | 85.5 mm | 89.5 mm | ~114g | Yes |
| *BB86 | 41 mm | 86.5 mm | 91.5 mm | ~51g | No |
| BB30 | 42 mm | 68 mm | 73 mm | ~89g | Yes |
| BBRight (Direct) | 42 mm | 79 mm | - | ~90g | No |
| **OSBB | 46 mm | 61 mm | - | ~51g | Yes |
| PF30 | 46 mm | 68 mm | 73 mm | ~114g | Yes |
| BBRight (P/F) | 46 mm | 79 mm | - | ~90g | No |
| 386EVO | 46 mm | 86.5 mm | - | ~51g | No |
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