2022 Specialized Riprock Coaster 12


With the Riprock Coaster 12 riding gets boiled down to its simplest element—fun.

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To make sure of it, Specialized 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 12×2.3″ tyres 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 premium A1 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.

12×2.3″ Rhythm Lite tires deliver tons of traction, comfort, stability, and fun over all types of terrain.

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

Additional information


White Metallic Silver / Flake Pink / Moto Orange


Specialized A1 Premium Aluminum
Fork Hi-Ten steel
Die Cast Aluminum, 35mm length, 22.2 clamp diameter
BMX, steel, 10-degree backsweep, 4-degree upsweep, 65mm rise, 470mm width, 22.2mm
Specialized, slip-on
Front Brake
V-brake w/ tool-less reach adjust brake lever
KMC Z510, single-speed, anti-drop, 1/2″x1/8″
Hi-Ten steel, 76mm
Chainrings Steel, 26T
Bottom Bracket
Nylon platform w/ reflectors
12″ alloy, 16mm depth, 21mm internal width
Front Hub
Bolt-on, 95mm spacing, loose ball bearings, 16h
SeatPost Steel, 22.2mm
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, 12×2.3″
Rear Tire
Rhythm Lite, 30 TPI, wire bead, 12×2.3″
Inner Tubes Schrader valve
Specialized Kids’
Seat Binder
Bolt-type, 28.6mm


Size 12
BB Drop 11mm
Chainstay Length 272mm
Fork Rake 5mm
Front Center 331mm
Head Tube Angle 70°
Head Tube Length 80mm
Reach 222mm
Seat Tube Angle 71°
Seat Tube Length, BB Center to Top 170mm
Stack 274mm
Standover Height 365mm
Top Tube Length, Horizontal 350mm
Trail 53mm
Wheelbase 603mm