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The Kolossos ST features an 18-tooth narrow-wide bottom pulley and 14-tooth top pulley on our stiffest cage yet
This bottom bracket will fit a 386EVO or Rotor 30mm crank on a Cervelo frame
Guide G2 Ultimate and Avid XO Trail brakes
99 Spindles
Our standard PF30 bottom bracket uses a deep insert for the strongest possible connection to the frame
Campagnolo Ultra Torque bearing set derailleurtype-Sram The Kolossos ST features anThis bearing set can be used to fit a Campagnolo Ultra Torque crank set in any of our UT series bottom brackets. It can also be retrofitted to any original Campagnolo cup Select cross bearings for best durability and off road use. Select road bearings for lowest friction.
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