Fork Mongoose, 16”, steel steerer, 100 mm, bolt-on Bottom Bracket nternal, 1-piece, American, 68 mm shell Cassette Single-speed, 16T Chain KMC Z410 Pedals Kids, plastic Brake Levers Alloy Front Brake Aluminum caliper front, rear steel coaster brake Rear Brake Aluminum caliper front, rear steel coaster brake Grips Mongoose, kids Handlebar Mongoose, Hi-Ten steel, 500 mm width, 130 mm rise, 22.2 mm clamp Stem Aluminum/steel, quill, 30 mm ext., 22.2 mm clamp Headset Threaded, EC22.2/27, retainer bearing Seatpost Aluminum, integrated saddle, 25.4 mm Saddle Mongoose Kids, integrated rails Hubs Steel, 3/8 in axle, 20H Rims Aluminum single wall, 20H Spokes 14G, stainless steel Tyres Mongoose, 16 in x 2.125 in, wire bead Crankset 1-piece forged steel 89 mm, 28T steel chainring Feature 1 KidFit™ technology has been embedded into the design of every juvenile bike we make from the LilGoose to the Racer X. Learning to ride can be tough. But, KidFit™ features like easier gearing and improved rider positioning help make those first experiences a lot easier.