The CT-5 Chain Tool performs like a shop-quality tool in a lightweight compact size that easily fits in a saddle bag or mobile mechanic's tool roll. The CT-5 removes and installs pins on all 5-to-12-speed derailleur chains including newer SRAM 12-speed designs. The integrated loosening shelf is useful for adjusting tight links on older style chains.Compatible with all 5-speed to 12-speed bicycle chains* including SRAM T-Type SRAM Flattop and Shimano XTR 12-speedCompatible with 3/32" single-speed chainsCompatible with many 1/8" single-speed chains - see the CT-3.3 for guaranteed compatibility with all single-speed chainsNot compatible with 3/16" or half-link single-speed chains*The CT-5 will install and remove but not peen Campagnolo 11 and 12-speed chain rivets