Turbine is the most concave flat pedal designed for climbing, mobbing descents, and tackling the most demanding terrain where riders are all-in on grip. Covered by a Lifetime Warranty inclusive of crashes and available in seven colors. It's the most locked-in feel you can get on traditional flat pedals, for when a good grip just isn’t good enough. Race Face Turbine Pedal Features Concave design allows the foot to sink in, resulting in a supportive, locked-in feel 2-axis concave shape: front-to-back and inboard-to-outboard, 9mm deep with pins No bearing bulge on the body for a narrower, more ergonomic stance Inboard bushing and outboard bearing are fully serviceable/rebuildable Race Face Turbine Pedal Specs Axle Material: Chromoly Steel Body Material: 6061 Aluminum Length: 115mm Width: 110mm Height: 20mm Platform Concavity: 3mm (9mm with pins) # of Pins: 11 adjustable per side Pin Height: 6mm Spindle Size: 9/16" Weight: 419 grams per set