CeramicSpeed BB90 Bottom Bracket - SRAM GXP, Black Standard Bearing Bike Accessories_Bike Racks Italian bottom bracket shells are

Italian bottom bracket shells are typically only found on Italian bikes these days

12oz squeeze bottle

the chainrings are set to intermediate position OCP3

D: BB DROP

making it an ideal choice for urban commuting

CeramicSpeed BB90 Bottom Bracket - SRAM GXP, Black Standard Bearing Bike Accessories_Bike Racks Italian bottom bracket shells areTrek 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 feature super smooth, super round CeramicSpeed balls rotating in hardened steel