Chris King ThreadFit 24 Bottom Bracket Fit Kit 4 - English For Shimano Hollowtech II Silver MFPN=3770900 Use a front/rear set or

Use a front/rear set or match the front with Sturmey 3sp fixed rear or 2sp kickback rear

Encase Hex BIt (includes a T25 bit)

1 1/8" top (straight 1 1/8" or 1 1/2" to 1 1/8" taper) steerer tubes only

gravel and any drop-bar bike

Compatible with Shimano's SW-RS801-S/T/E satellite shifter (sold separately) Brake Lever Actuation Hydraulic Double or Triple Double Rotor Included No Brake Lever Use Left Drivetrain Speeds 12 Front Der/Shifter Compatibility Shimano Road Di2 Color Black Hydraulic Fluid Type Mineral Oil Includes Brake No Adjustable Reach Yes Adjustable Contact Point Yes Defined Color Black Side Left

Chris King ThreadFit 24 Bottom Bracket Fit Kit 4 - English For Shimano Hollowtech II Silver MFPN=3770900 Use a front/rear set orThe ThreadFit 24 bottom brackets are designed and built to be durable serviceable and silent. Bearings can be serviced with the Chris King Grease injector tool. Engineered manufactured and assembled in Portland Oregon USALegendary King made in house angular contact bearings Fully serviceable and backed by the King Lifetime Warranty this bottom bracket will outlast your bike Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width