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Updated to a press fit bottom bracket system
The custom-machined cage and oversized ceramic pulleys minimize friction
This model fits only 12-speed Shimano GRX 2X - 11 and 12-speed derailleurs
the Speed Kolossos delivers aerodynamic optimization that slashes drag while preserving crisp
This bottom bracket is compatible with a variety of bikes and comes with sealed options to suit your riding style
PF30-GXP for Sram GXP cranks Bearing Type:Ceramic Bearings Updated to a press fitThis bottom bracket fits any Sram GXP crank on a PF30 frame. Choose road bearings for road bikes, cross bearings for mountain bikes and cyclocross.
