Full Speed Ahead Gradient Carbon i30 Rear Wheel - 27.5" 12 x 148mm 6-Bolt XD Carbon BLKThe Gradient i30 wheels feature a 30mm internal width asymmetric carbon rim hookless design and PRS Hub technology with 72 points of engagement for unmatched responsiveness. Built with advanced materials and tested on the most demanding tracks it delivers ultimate reliability. i30 variable height hookless carbon rim Asymmetric design 24mm depth x 37mm width x 30mm ID 22 24mm height rim for increased ride quality 4mm asymmetric spoke bed for equal