Replacement axle end caps for the GXC, RD2 and MTC Boost Supadrive Rear hubs.
 
CNC machined alloy end caps.
QR type includes steel non-slip serrated grip-rings.
Clockwise threaded axle fitment.
Thru axle type requires 2 x 17mm cone spanner tools.
QR type requires 5mm Hex Key tools.