E*thirteen Extended Range Cog. Features: Extended range aluminum ...
40t or 42T cogs to fit Shimano 10-speed cassettes 42T is compatible with 36T max cassettes while 40t is compatible with 34t max cassettes Remove the existing 17T and add the Extended ...
E*thirteen Extended Range Cog. Features: Extended range aluminum ...
42T cog to fit SRAM 10-speed cassettes 42T is compatible with 36T max cassettes Remove the existing 17T and add the Extended Range cog without any additional spacers to create an 11-42 ...