They have a slight flange on the inside

Rainier 27

Where Funn's original Mamba pedal was designed for the brutal conditions of World Cup downhill

You'll not only shave some weight

They will complete your build nicely

Shimano CUES FC-U6000 1x9-10-11 Speed Crankset - 68-73mm and BB86-92 - 24mm - 96 BCD - Shimano Asymmetrical - 170mm - Black Do Not Ship Internationally They have a slight flangeSuperior chain retention and power transfer for fun riding over the rough stuff Grow your confidence riding hard over the rough stuff with this crankset's wide range gearing and seamless pedaling. FEATURES 2 PIECE CRANKSET increases rigidity of crankset with less weight and transmits pedaling force efficiently Special gear tip shape improves chain engagement and retention for smooth riding over rough terrain DYNAMIC CHAIN ENGAGEMENT+