Options:
① 55T
Package: 55T Pulley ×2
Compatible with 155mm Pneumatic Tires
② 32T
Package: 32T Pulley ×2
Compatible with 90mm Street Wheels
③ 40T
Package: 40T Pulley ×2
Compatible with 120mm/105mm Cloudwheel
③66T
Package: 66T Pulley ×2
Compatible with 190mm Pneumatic Tires