Our square taper Hollow Axle Bottom
Brackets are precision fitted with smooth rolling sealed bearings to
ensure a trouble free and frictionless ride. Anodized alloy cups.
Crank bolts included.
Thread: British ISO 1.37" x 24T
Axle: Heat Treated Chromoly Square Taper Hollow Axle
Shell Width: 68mm
Shell Material: 6061-T6 Heat Treated Aluminum