Jtek 7spd Freewheel - 11-34T. Fitting requires a Shimano type splined freewheel removal tool. (Shimano's own TL-FW30 Multiple Freewheel Remover is SJSCycles part #870). - 7 Speed freewheel. Always grease threads before installation; the freewheel tightens itself through pedaling, making it self-locking.
