Bonamici’s Chain Adjusters allow precise adjustment first time every time, to ensure your chain is setup correctly. They are CNC Machined from billet Aluminium alloys, anodised to allow for greater longevity and are supplied with stainless steel fittings.

To adjust your chain simply turn the small adjuster by hand, which has small detents that click when turned and a metric scale that is stamped into the alloy, so you can achieve 100% accurate line up of left & right sides.