Sunrace replacement twist shifters Shimano/Sram MRX compatible pull ratio Available in Friction, 3,5,6,7, and 8 speed options TSM21 RH 7s 2 to 1 Blk/Gry
Gear display Built in cable adjuster TSM37 Right 7s 2 to 1 Blk 89g
Force and cable adjustment TSM63 Right 7s 2 to 1 Blk 109g