Revo-F Flat Pedals - Black High grade chromoly axle, Fully concave platform in two axis, Large parallelogram body profile, Tuneable pin height in 1 mm increments from 2.5 mm to 5.5 mm, Full contact, low friction, inboard main seal, Extra wide, inboard Igus bushing, Three outboard cartridge bearings, Simple, servicing axle system