Works with all multi-speed bikes (including 12-speed) as well as some single-speed models and e-bikes Cleans chain without the need to remove the chain 3 brush heads power away dirt and grime Absorbent sponge soaks up the degreaser as the chain exits the scrubber Heavy duty plastic construction ensures years of performance Sturdy handle and one-piece lid clamp make this chain scrubber easy to use 
