STAMP 1 GEN 2 Crankbrothers second generation of Stamp 1 MTB pedals feature a redesigned concave pedal profile offering improved grip and stability an upgraded internal bushing and spindle design borrowed from our proven Stamp 7 pedals 10 robust and replaceable onepiece pins per side and a reinforced composite body construction Lightweight 321g per pair Stamp Small 384g per pair Stamp Large 5 Year Warranty VERSATILE DESIGN The Stamp 1 Gen 2 pedals are wellsuited for a variety of riding styles including MTB BMX CityCommuting Gravel and more ENHANCED GRIP The redesigned pedal body measures 155mm at the edges and 135mm at the center providing a 1mmperside concavity that cradles the riders foot and improves stability The concave shape of the Stamp 1 Gen 2 pedal also allows all 10 of the strong onepiece pins to dig into the shoes outsole and provide excellent traction The enhanced grip reduces the risk of pedalslips improving the riders overall safety and confidence IMPROVED DURABILITY The Stamp 1 Gen 2 features upgraded internal components including the premium quality Igus bearings and seal system and chromoly steel spindle from our prolevel Stamp 7 pedals In addition the Stamp 1 Gen 2 pedal body is constructed from a durable reinforced composite material All Stamp pedals are fully serviceable with an available refresh kit The onepiece pin design allows long pins to be installed through the entirety of the pedal body OPTIMAL SHOE PEDAL INTERFACE TWO SIZE SPECIFICS Small 100mm x 100mm platform recommended for shoe sizes 510 US M Large 111mm x 114mm platform recommended for shoe sizes 1015 US M