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This new product was designed to work with the Specialized OSBB frames, such as the Tarmac and Venge frames. Our adapter includes Folmer Technology bearings and reduces the OSBB to a Shimano crank set.
The pre-installed bearings spin as smooth as all Hawk Racing bottom brackets.The Hawk Racing Adapter is compatible with all Shimano compatible road cranks having a 24 mm spindle without the use of external cups. We use Acetal Copolymer (Delrin) because of the better characteristics. Available with standard or full stainless steel Folmer Technology bearings. Designed and Made in USA. |
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