Tight tolerances and precise torque specs mean precision parts like this MegaExo 12 Left Arm Crank Bolt need to be replaced from time to time. Make sure the heart of your drivetrain is secure, and pick up a spare or two today.
- FSA #ML140
- For FSA Alloy Cranks with 2 pinch bolts on left Crank Arm
- M18 Bolt (18mm in diameter)