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BSA comes from Birmingham Small Arms, aka English threading. English threading on mountain bikes means a 73mm wide, 34mm inside diameter shell with reverse threading on the drive side. It's the most common threaded standard employed today. This kit allows you to fit 30mm thru-axle cranks, like those from Rotor or RaceFace, to fit in the tight space of this 30mm spindle.
Features:
Specifications:
Frame Interface: BSA/English Threaded
Spindle Interface: 30mm Spindle
Bottom Bracket Shell ID: 1.37
Shell Width: 73mm
Bearings: Ceramic
Color: Black
Weight: 81g
This product was added to our catalog on August 3, 2022