Designed to facilitate the removal of locking rings on some electric bicycles, the TO-E02 locking ring tool is another high-quality tool from XLC. A locking ring tool is used to remove and insert the locking ring found on cassettes and/or sprockets on electric bicycle motors. The compatible motors are Bosch Classic Line, Bosch Classic+ first generation with an outer locking ring diameter of 59.9 mm. The motors must also be produced between 2010 and 2013/2014. If you are unsure about compatibility, please consult your bicycle's user manual. These motors are found on many types of bikes, and this tool will work on all of them, whether road bikes, racing bikes, mountain bikes, trekking bikes, or city bikes, as long as they contain compatible motor groups.