US$ 12.99
Hycor waterproof/breathable chassis
Developed by Zero Gravity R&D in 1995 for Team ZG's race bikes
Visibility is another obvious one
load up the bikes and go
Hot Cams Intake Valve YCRF_bicycle_helmets Hycor waterproof/breathable chassisFEATURES Forged one piece OEM replacement valves Precision machined valve head and seat surfaces Nitride coated Induction hardened valve stem tip Precision polished surface Compatible with OEM valve keepers