SIDI Aeron XC Clipless Mountain Shoes - Black, 45 quality-wheels and are typically used in

and are typically used in BB shells with widths from 68mm to 100mm

The other drift has two sizes to press in cups with either 1-1/8" or 1-1/2" bearings

Combining Zipp's wheel laminate with a wider rim profile and optimized tire interface helps you overcome the four barriers to speed: wind resistance

These heads are compatible with all rev1 and rev2 Gnarwolf Chainguides

SIDI Aeron XC Clipless Mountain Shoes - Black, 45 quality-wheels and are typically used inAeron redefines XC performance through advanced construction and precision fit. The ripstop upper with TPU bumpers offers protection without added weight, while dual NUUN 001C dials and external Firmor reinforcement ensure secure, responsive support. A fast adapting instep and UNUM tongue deliver a pressure free fit, complemented by a tool free heel adjuster for fine tuned stability. The sole, with stiffness index 11 and generous rubber coverage,