
- Add-on cog to extend gear range of 10 speed Shimano™ and SRAM™ cassettes
- Comes in 40T and 42T for use with Shimano™ cassettes and a 42T only for use with SRAM™ cassettes
- Timed and ramped specific to Shimano™ and SRAM™ cassettes
- Comes with a longer steel replacement, B-limit screw for your derailleurs
Description
- Add-on cog to extend gear range of 10 speed Shimano™ and SRAM™ cassettes
- Comes in 40T and 42T for use with Shimano™ cassettes and a 42T only for use with SRAM™ cassettes
- Timed and ramped specific to Shimano™ and SRAM™ cassettes
- Comes with a longer steel replacement, B-limit screw for your derailleurs