CeramicSpeed Trek BB90 Bottom Bracket - SRAM GXP and Trek, Black Coated Bearing Shimano Tiagra No parabens

No parabens

JCOB REAR HYDRATION MOUNT (RHS) READY WEIGHT 366 g SEAT RAIL HOLLOW CHRO-MOLY REAR WIDTH 135 mm FRONT WIDTH 55 mm LENGTH 260 mm RELIEF CHANNEL  15 mm X 150 mm RAIL LENGTH 105 mm

Ideal for 20km

5mm wide and mate most cranks with a 30mm spindle to that standard

CeramicSpeed Trek BB90 Bottom Bracket - SRAM GXP and Trek, Black Coated Bearing Shimano Tiagra No parabensTrek developed their own bb standard to optimize their frame designs. BB90 has a 90. 5mm shell width and 37mm inner diameter and is designed so that the bearings of external cups can hide within the frame. The CeramicSpeed kit comes as two bearings, which are then pressed into the frame. Those two bearings consist of either CeramicSpeed Standard or Coated Bearings. Both features super smooth, super round CeramicSpeed balls rotating in hardened steel