
Specialized Riprock Cstr 12 Features
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.
Component Specifications
| Frame | Specialized A1 Premium Aluminum |
| Seat Binder | Bolt-type, 28.6mm |
| Fork | Hi-Ten, 1" threaded steerer |
| Chain | KMC Z510, single-speed, anti-drop, 1/2"x1/8" |
| Crankset | Hi-Ten steel, 76mm |
| Bottom Bracket | Steel, loose ball bearings |
| 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" |
| Rear Brake | Coaster brake |
| Handlebars | BMX, steel, 10-degree backsweep, 4-degree upsweep, 65mm rise, 470mm width, 22.2mm |
| Grips | Specialized, slip-on |
| Saddle | Specialized Kids' Henge |
| Seatpost | Steel, 22.2mm |