Type A:MTB 7/8/9 Speed. Type B:MTB 10 Speed. Type C:MTB 11 Speed. Type A:1x MTB 7/8/9 Speed. Type B:1x MTB 10 Speed. Good Compatibility: Plastic-steel composite material, light weight, good compatibility, suitable for various gear shifting models; solve various pain points, improve gear shifting response speed, and make gear shifting more labor-saving.
eBay