Specialized Riprock Coaster 12

We deliver bikes nationwide.

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.


FRAME - Specialized A1 Premium Aluminum

FORK - Hi-Ten, 1" threaded steerer

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

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

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

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

CRANKSET - Hi-Ten steel, 76mm


BOTTOM BRACKET - Steel, loose ball bearings

CASSETTE - 16T cog

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

FRONT BRAKE - V-brake w/ tool-less reach adjust brake lever

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'

SEATPOST - Steel, 22.2mm

SEAT BINDER - Bolt-type, 28.6mm

PEDALS - Nylon platform w/ reflectors


With decades of experience offering quality bikes and service, you can rest assured we have deeply considered the quality of the products we sell and have the technical skills to assist you.

We genuinely want our riders to love their cycling and to achieve this we focus on ensuring our riders purchase the bike they truly need and want and fits their riding purpose.

We also genuinely want to look after our riders post purchase - its a duty of care that we take seriously.

Lastly, we are riders ourselves. We are in this business because we are genuinely passionate about riding all types of bikes and are here to share our knowledge to help enhance your riding experience.

Why buy from us