Wheels Manufacturing Shimano Hollowtech II Preload Tool

This tool is specifically designed for Shimano Hollowtech II crankset compression bolts. It will work with any crankset that utilizes this standard preload cap system.

The aluminum construction offers significantly higher durability and a more precise fit, reducing the risk of stripping the plastic teeth on the preload cap. It provides a more tactile, secure feel when tightening or loosening the bolt.

Yes, this tool is designed to be used with a standard 3/8-inch drive ratchet or torque wrench. It features a square drive interface, allowing you to apply precise torque if needed.

Because it is precision-machined from anodized aluminum, the tool is much less likely to slip or mar the surface of your preload cap compared to cheaper plastic or stamped steel alternatives. However, as with any metal tool, you should always ensure it is fully seated before applying pressure.

If you are removing or installing your crankset, this tool is essential for properly adjusting the bearing preload. Without it, you cannot safely tighten or loosen the compression bolt that holds the non-drive side crank arm in place.