Bonamici Racing Aluminum Chain Adjuster for BMW S1000RR (2020+) / S1000R (2021+) / M1000R

Made of Ergal machined from solid with CNC technology, the Bonamici Racing chain adjuster is robust and effective, with the use of bearings to completely eliminate friction and for the first time with adjustable micrometric system. It is possible to customize the inner part in various colors, while the outer part is only available in black color.