Genuine Brompton Left Hand Crank Arm. This crank arm is suitable for the modern Brompton Spider Crank which has the replaceable chainring.
The left hand crank arm (non-drive side) has a built in tab on the back of the crank to prevent the pedal hitting and scratching the frame when folded. If your crank arm continually comes loose then chances are the square taper has been damaged and you need to replace the arm.
- Genuine Brompton replacement part
- Left-Hand Crank Arm (non-drive side)
- Suitable for the 2013 onwards Spider crank
- Crank length: 170mm
- Bottom bracket fitting: JIS Square Taper
- Pedal fitting: 9/16"
- Available in Black or Silver
Download: Brompton Spider Crankset Data Sheet