2017 Riprock 20″ (Coaster)


Riding a bike is all about freedom, so no kid should ever have to feel inhibited by where they can and can’t ride their bike. With the Riprock 20 Coaster, however, your little one will be able to rip and ride on any terrain that they come across—especially with the easy-to-use coaster brake.

Frame Specialized A1 Premium Aluminum
Fork HiTen, 1-1/8" steerer
Crankset Hi-Ten steel, OPC
Chainrings 36T
Bottom Bracket Steel, loose ball bearings
Chain KMC Z510, single-speed, anti-drop, 1/2"x1/8"
Rear Brake V-brake, alloy, linear pull
Handlebar BMX, steel, 10-degree backsweep, 4-degree upsweep, 130mm rise, 560mm width, 22.2mm
Grip Specialized, dual colored
Stem Ahead, alloy, 1-1/8" steerer, 22.2mm clamp, 37mm extension
Saddle Specialized Kids'
Front Hub Steel, 3/8" axle, 36h
Rear Hub Rear coaster brake, 3/8" Cr-Mo axle, loose ball bearings, 18T cog, 36h
Spokes Stainless, 14g
Rims 20", alloy single wall, 36h
Inner Tubes Standard, Schrader valve
Front Tire Rhythm Lite, 20×2.3", 30TPI, wire bead, directional tread
Rear Tire Rhythm Lite, 20×2.3", 30TPI, wire bead, directional tread
Seatpost Steel, 25.4mm
Seat Binder Alloy, 28.6mm