SUNTOUR SP12NCX Bike Suspension Seatpost 27.2/30/30.9/31.6/33.9mm Shock Absorber

Suspension system_ZH：Internal Coil with preload adjust/steel bushing parallelogram. Compatible: 7x7mm Round saddle rails only. Air Portable Fan Quiet Natural Wind Large air outlet. Stator Wiring Loom On Off Switch Coil CDI Plug Kit 110cc 125cc 140cc Pit Bike.