Shimano Deore SM-RT64 Disc Rotor 140mm DMZ Will fit most helmet types

Will fit most helmet types and is supplied with a short and long bolt to accomodate varying shell thicknesses

Power sensors: Dual-Sided

Convenient features like pause/resume recording

Abrasion resistant and made from long-lasting materials

Shimano Deore SM-RT64 Disc Rotor 140mm DMZ Will fit most helmet typesShimano's SM RT64 disc brake rotor delivers powerful and consistent braking performance in all riding conditions. The Centerlock mounting system makes installation and removal quick and easy thanks to the key coupling mounting and locking ring design. Specifications Compatible resin metal pad Centerlock disc brake rotor assembly Mfr Claimed Weight TBC