BSA30 Bicycle Bottom Bracket for 30 mm Crank Spindles

Fit a 30 mm crank spindle to a compatible BSA bicycle frame with this BSA30 bottom bracket. Its bearing construction provides the interface between crank and frame for a planned build or replacement.

Match your crank to a BSA frame

• ✅ Use a 30 mm internal diameter to match a compatible crank spindle.
• ✅ Choose the BSA frame interface for a build that uses a threaded BSA bottom bracket shell.
• ✅ Keep component weight manageable with an aluminium alloy body weighing approximately 95 g.

Model: BSA30. Material: aluminium alloy. Internal diameter: 30 mm. Frame interface: BSA. Approximate weight: 95 g. Check your frame and crank dimensions before fitting.

One BSA30 bottom bracket is supplied; comparison views show its two cups from different angles.

Check your frame and crank specifications, then select the BSA30 for your build.