The nylon composite material is light and strong

cleaner look

Strap grippers at the back keep your goggles in place

while only slightly longer

SRAM GX 10 Speed Rear Derailleur - Short Cage - 10 Speed Back in Stock The nylon composite material isSRAM GX 10 Speed Rear Derailleur is designed with EXACT ACTUATION technology which provides an incredibly precise shift, ROLLER BEARING CLUTCH technology to ensure maximal drivetrain stability and CAGE LOCK technology which simplifies wheel removal and installation. It comes in three different cage lengths: short, medium and long. Choose a Short Cage if you're running 1 x 10 on cassette up to 11 36T Choose a Mid Cage for 1 x 10 with cassette up to 11