White Industries BSA24 External Bottom Bracket Cups - BSA-68/73-24 - black

The functional and long-life bottom bracket with stainless steel bearings from White Industries:

• Bottom bracket cups: BSA threaded 68/73mm
• Bearing material: stainless steel
• Works only with 30mm spindle
• No spacers needed with White Industries R30 and G30 cranks on 68mm shells (73mm shells are too wide).
• No spacers needed with White Industries M30 and A30 cranks on 73mm shells.
• On 68mm shells, use one 2.5mm BSA cup spacer on each side.

Shimano mountain BB cups are 1mm narrower than our cups so you may need to add a 1mm axle spacer on each side when using a Shimano mountain crank.