The Shimano Dura-Ace FC-7800 Crank Arm Clamp Bolt is a high-quality replacement fastener designed to secure the crank arm to the spindle on Shimano Dura-Ace FC-7800 cranksets. Precision-made to match the original specification, this bolt ensures a solid, reliable connection between the crank arm and bottom bracket spindle — a vital link in your drivetrain that maintains pedaling efficiency and prevents unwanted play or loosening during rides.

Built with durable, corrosion-resistant materials, the clamp bolt withstands the stresses of regular pedaling and environmental exposure. Its exact thread pitch and head profile are engineered for compatibility with the FC-7800 series crank arm, offering smooth engagement when tightened to the proper torque. Whether you’re replacing stripped or lost hardware during a crank installation or servicing your Dura-Ace crankset, this clamp bolt restores proper fixation and keeps your drivetrain performing as intended.