Spinning BB 24 Ultra is thread-together BB and suitable for 24mm spindle Shimano HT Ⅱ and Sram GXP 22/24 mm. With 24mm ceramic ball angular contact bearing, thanks to the smooth surface plus magic grease spinning effectively, achieve the imagination of your ideal mate.
BB Shell DIA mm
*The BBRight is made up of the left BB386 and the right PF30. * Sram GXP will be weighted 2 grams than Shimano.