Dura-Ace FC-9000 FC-7900 Crank Arm Fixing Bolt 1st version

This is the first - version Shimano Dura - Ace crank arm fixing bolt for FC - 9000 and FC - 7900 models. It offers reliable performance and high - quality construction, ensuring a secure fit for your crank arms.

To use this fixing bolt, first make sure your crank arms are clean and dry. Then, carefully insert the bolt into the designated hole on the crank arm and tighten it using the appropriate tool. Don't over - tighten, as this may damage the bolt or the crank arm. For maintenance, regularly check the tightness of the bolt, especially after long rides or if you notice any unusual noises. If the bolt shows signs of wear or corrosion, replace it promptly to keep your bike in top shape.