With our Riprock Coaster 12, riding gets boiled down to its simplest element—fun. And to make sure of it, we designed the bike with tons of cool features that are easy for your little ones to use, like a coaster brake for simple stopping, wide 12x2.3" tires that increase stability and confidence, and tough components that will stand up to years of abuse. It's the perfect bike for your little ripper to start getting out on the trail with—we just wish that we had one when we were kids.

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.
12x2.3" Rhythm Lite tires deliver tons of traction, comfort, stability, and fun over all types of terrain.

Technical Specifications
FRAMESET
Frame

Specialized A1 Premium Aluminum

Fork

Hi-Ten steel

Seat Binder

Bolt-type, 28.6mm

COCKPIT
Stem

Die Cast Aluminum, 35mm length, 22.2 clamp diameter

Handlebars

BMX, steel, 10-degree backsweep, 4-degree upsweep, 65mm rise, 470mm width, 22.2mm

Grips

Specialized, slip-on

Saddle

Specialized Kids'

SeatPost

Steel, 22.2mm

DRIVETRAIN
Chain

KMC Z510, single-speed, anti-drop, 1/2"x1/8"

Crankset

Hi-Ten steel, 76mm

Chainrings

Steel, 26T

Bottom Bracket

Feimin FP-B701, 68MM

ACCESSORIES
Pedals

Nylon platform w/ reflectors

WHEELS
Rims

12" alloy, 16mm depth, 21mm internal width

Front Hub

Bolt-on, 95mm spacing, loose ball bearings, 16h

Rear Hub

Coaster brake, bolt-on, loose ball bearings, 110mm spacing, 16T cog, 16h

Spokes

Stainless, 14g

Front Tire

Rhythm Lite, 30 TPI, wire bead, 12x2.3"

Rear Tire

Rhythm Lite, 30 TPI, wire bead, 12x2.3"

Inner Tubes

Schrader valve

* Specifications are subject to change without notice