Mavic crossmax pro mtb spd shoesmavics crossmax pro shoes are top performance super stylish xc shoes the energy grip terra carbon outsoles on these xc shoes are both lightweight and stiff with an index energy transfer rating of 70 enabling you to drive power flawlessly ergo dial quick releasethe ergo dial qr on top of the feet offer strong tightening with a micro adjustment and a quick and easy release while the ergo dial on the instep provides two way micro adjustment comfortable xc shoesth