30mm Spindle

Regardless of how efficient and easy to use Stages Cycling makes its power meters, they're useless unless you can connect them to your existing crank arm. Stages' 30mm Spindle bridges that gap by spanning your bottom bracket, attaching the non-drive, power meter-equipped Stages carbon crank arm to your existing driveside crank.

• Adapts the Stages carbon crank arm to your machine
• Length options span almost any bottom bracket shell
• Options covering multiple component manufacturers
• Not compatible with 156mm Q factor