Easy to install by simply pinching it on a quick shaft of a road bike, cross bike, etc. Protects the rear derailleur and derailleur hanger from contact problems during commuting. Widely used for sports cycles including commuting and cycling.
It is a part to guard the transmission failure at the time of a fall.
It is used to protect the transmission from impact in the unlikely event of a change.
CAPTAIN STAG Transmission guard <Large>Shank Diameter (Φmm) 25 Length (mm) 68
