SIDI Aertis Mountain Clipless Shoes - Greige/Black 42.5 MFPN=HWGXXX00S2757S The crank arms spin on

The crank arms spin on a beefy 30mm spindle permanently fitted into the drive-side arm

Engineering thermoplastic body

exible enough to handle the roughest of roads

Reserve Infinity Disc wheels are your weapon of choice against the clock and the wind

SIDI Aertis Mountain Clipless Shoes - Greige/Black 42.5 MFPN=HWGXXX00S2757S The crank arms spin onWhatever the journey Aertis is there to make it easier and better. The comfort of a premium suede construction meets the Firmor technology that offers great lateral support. The nylon sole with replaceable rubber insert allows for maximum grip in any situation and increased walking comfort. Designed for maximum lateral support the Firmor Closure contours the foot with a solid hold and allows infinite size adjustment for the ideal individual fit SIDIs