Attempted to mount once, gave it some small nicks in the process of figuring out it doesn’t fit my bike. So scuffed, but never used. SX models: 2011-2015 EXC models: 2012-2016 “Quick, precise chassis adjustment and improved appearance with the preload adjuster for the shock absorber. The main benefits: • Quick preload adjustment. • Use of the entire thread length on the shock absorber. • Very simple to use. • Low weight. • Dust-resistant. • Mechanical drive mechanism. The shock absorber must be dismantled in order to fit the pre-load adjuster.”