SRAM GX 11 Speed Rear Derailleur - 11 Speed Virtual Parent The race grooves are also

The race grooves are also deeper on these bearings to provide increased lateral support to counteract the twisting and multi-directional forces associated with mountain bike pivots

Not only are they a great looking helmet

Included extension allows work on fork steering tubes up to 425mm

but reasonably unrestricted movement

SRAM GX 11 Speed Rear Derailleur - 11 Speed Virtual Parent The race grooves are alsoTHE NEXT GENERATION OF SRAM Leveraging the legendary history of SRAM shifting, the GX rear derailleur provides incredible shifting speed and precision. X ACTUATION technology eliminates slop and shifting variation. ROLLER BEARING CLUTCH technology delivers maximum drivetrain stability even through the most punishing terrain. And with CAGE LOCK technology, wheel removal and installation are easier than ever. Specifications for GX 1x11 X HORIZON Rear