Essential tool for shops or home mechanics. Adjustable opening suitable for sprockets from 10~17 teeth, compatible for 5~11 speed. Fixed with a spring to lock the sprocket fast and firm without slipping away. 

Super B Premium Series demonstrates the brand’s commitment to quality. The Premium range includes more specialist workshop tools for technical repairs like frame alignment, cutting and facing tools, but also enhanced durability and increased comfort for more frequent users. If your bike needs fixing Super B will have the tool to do it.