Chainring Bolts For Chainring Shimano FC-M540

Chainring screws for fixing the small chainring to your e-bike drive. With these original Shimano chainring screws you can fix the smallest chainring with 22 to 28 teeth on the crank arm spider.

The 4 screws have the following dimensions: 8×8.5 mm

You will also find in our online store the chainring bolts incl. matching nuts. So you can fix the medium or large chainring on the pedal crank, on the spider of the Bosch Classic drive unit or on the spider of the Yamaha X942 &, X943 engines.