Specialized Riprock Coaster 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.
At a Glance
- 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.
Component Specifications
| Frame | Specialized A1 Premium Aluminum |
| Seat Binder | Bolt-type, 28.6mm |
| Fork | Hi-Ten steel |
| Chain | KMC Z510, single-speed, anti-drop, 1/2"x1/8" |
| Crankset | Hi-Ten steel, 76mm |
| Chain Rings | Steel, 26T |
| Bottom Bracket | Feimin FP-B701, 68MM |
| 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 |
| 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 |
Specialized Riprock Coaster 12
| Bike/Frame Size | 12 |
|---|---|
| Seat Tube Length, BB Center to Top | 170 mm |
| Top Tube Length, Horizontal | 350 mm |
| Standover Height | 365 mm |
| Head Tube Length | 80 mm |
| Reach | 222 mm |
| Stack | 274 mm |
| BB Drop | 11 mm |
| Chainstay Length | 272 mm |
| Seat Tube Angle | 71° |
| Head Tube Angle | 70° |
| Fork Rake | 5 mm |
| Trail | 53 mm |
| Front Center | 331 mm |
| Wheelbase | 603 mm |
Size Guide: Specialized Riprock Coaster 12
