Traction, control, confidence, and fun—the Riprock 20 Coaster is the perfect bike for your kid to start hitting the trails with. And with the simple coaster brake design, safety and fun aren't mutually exclusive anymore.

While there are many notable features that make the Riprock awesome, it's the 2.3-inch tires that provide a high degree of, well, shred-ability—delivering exceptional traction, control, and confidence for riding rough, off-road sections and city streets alike. And when you combine the big tires with sturdy 20-inch wheels, an easy-to-use coaster brake that all but eliminates the threat of the dreaded endo, and a single-speed setup, you have the perfect mountain bike to get your little Ripper out on the trail.

• The A1 premium aluminum frame is lightweight and built to withstand the tough use by kids, while the geometry features an ultra-low standover that makes it easy for your little ones to fit on and grow with the bike.

• Steel coaster brake is a reliable, easy to use brake perfect for safe stops and awesome skids.

• 20x2.3" Rhythm Lite tires deliver tons of traction, comfort, stability, and fun over all types of terrain.

 
Technical Specifications
 
Frameset

Seat Binder: Bolt-type, 28.6mm
Fork: Hi-Ten steel
Frame: Specialized A1 Premium Aluminum

Brakes

Rear Brake: V-brake w/ tool-less reach adjust brake lever

Drivetrain

Bottom Bracket: Feimin FP-B701, 68MM
Crankset: Hi-Ten steel, 114mm
Chain: KMC Z510, single-speed, anti-drop, 1/2"x1/8"
Chainrings: Steel, 36T
Wheels & tiresRims: 20" alloy, 16mm depth, 21mm internal width
Rear Hub: Coaster brake, bolt-on, loose ball bearings, 110mm spacing, 18T cog, 36h
Front Tire: Rhythm Lite, 30 TPI, wire bead, 20x2.3"
Rear Tire: Rhythm Lite, 30 TPI, wire bead, 20x2.3"
Inner Tubes: Schrader valve
Spokes: Stainless, 14g
Front Hub: Steel, bolt-on, 100mm spacing, loose ball bearings, 36h

Cockpit

Handlebars: BMX, steel, 10-degree backsweep, 4-degree upsweep, 130mm rise, 560mm width, 22.2mm
Stem: Die Cast Aluminum, 37mm length, 10 degree, 22.2 clamp diameter
Saddle: Specialized Kids' Henge
Grips: Specialized, slip-on
SeatPost: Steel, 25.4mm

Accessories

Pedals: Nylon platform w/ reflectors

Weight: 10.6 kg (23 lb, 5.9 oz)