Evo EV-CW-1 Chain Whip Cassette Remover Tool. The Evo Premium Cassette & freewheel removal, and installation chain whip tool. Works on 5 through 10-speed rear cassettes, as well as 7, 8, 9, and 10 cog systems. The Evo chain whip also features Padded rubber handle for added comfort Long handle for greater leverage