ENVE M6 Rim Stem Cap quieter shifts thanks to the

quieter shifts thanks to the contoured pin

Spacers/wavy washer sit between the bottom bracket seals and the crank arm

and high-speed compression damping

The XMR is adaptable to Shimano Hyper Glide

here's a handy chart

ENVE M6 Rim Stem Cap quieter shifts thanks to theENVE M6 Front Rear Rim Weight 430g 445g (29") Wheelset Weight 1550g Internal Rim Width 32mm 29mm Hook Width 4. 2mm 4. 7mm Hole Count 28 28 Depth 21mm 21mm Pinch Flat Technology Wide Hookless Bead Front and Rear Specific Rim Designs Front is wider and more compliant maximizing support, comfort, and tracking Rear is optimized for power transfer and toughness Lightweight, Durable, and Comfortable Locking External Spoke Nipples ASTM 4 Classification