Shimano M520 Off-Road SPD Pedals - Black BX PSI R3: a combination of a

R3: a combination of a ride-compliant carbon reinforced nylon shell and a Kium hollow rail with high strength-to-weight ratio

While the key purpose of these wheels is to deliver extreme performance

these aluminium M5 lock nuts come anodized in a black colour

rather than into

but not so long that they twist or deform under load

Shimano M520 Off-Road SPD Pedals - Black BX PSI R3: a combination of aShimano's lightest off road pedals featuring proven designs that work in real world conditions, the Shimano M520 Off Road SPD Pedals (Black) are built on Shimano's legacy of quality, dependability and endurance. Specifications Open design pedal at an economical price Open binding mechanism designed to better shed mud Low maintenance sealed bearing cartridge axle Colours: Black and Silver Nylon resin axle locknut with 15mm wrench flats for install