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2020 Specialized

Riprock Coaster 12

A 12″ aluminum frame general youth bike with coaster brakes.
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Manufacturer Price

MX$7,000($405)
FrameAluminum
SuspensionRigid
ForkSteel
Wheels12″ Aluminum
BrakesCoaster
Where to Buy
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Reviews

Summary

The Specialized Riprock is a well-designed youth mountain bike that excels in lightweight construction, modern geometry, and kid-specific components, making it an excellent choice for young trail riders. Its slacker geometry, reduced chainstay lengths, and dropped stack heights improve handling and comfort, while the inclusion of hydraulic disc brakes and wide-range cassettes enhances performance. However, some models feature rigid forks, which may limit suspension performance for more aggressive trails.

Pros
  • Lightweight and durable design

  • Modern geometry for improved handling

  • Kid-specific components for comfort and efficiency

  • Hydraulic disc brakes and wide-range cassettes

  • Fun color and graphics designs

Cons
  • Rigid forks on some models limit suspension performance

  • Coaster brake can be challenging for beginners

  • Seat post adjustment requires tools

Key Quotes
Specialized Bicycles has released a new kids bike for 2022, it’s called Riprock.
Mountain Flyer logoMountain Flyer
“Most young riders don’t need suspension forks, and by offering a rigid fork, we’re able to dramatically reduce the bike weight, which ultimately results in a more positive experience for smaller, less powerful riders.”
Pinkbike
Small, yet mighty, the Specialized Riprock 12, previously called the Hotrock 12, is a fun and well-designed little machine capable of getting the youngest and tiniest kids off and riding.
Two Wheeling Tots logoTwo Wheeling Tots

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Mountain Flyer
Specialized Introduces New Kids Riprock With

Oct 2021

Specialized introduces an updated Riprock for young rippers with all the bells and whistles of its classic adult bikes. It has modern geometery and some cool new parts to go with the redesigned frame.

Read Review

Pinkbike
Specialized Announces New Riprock Kids' Bikes

Oct 2021 · Mike Kazimer

The new Riprocks have updated geometry and components selected especially for smaller riders.

Read Review

Two Wheeling Tots
Specialized Riprock (Hotrock) 12 Review

Mar 2021 · Natalie Martins

A best-selling bike shop kids bike, the Specialized Riprock 12 is an update on the popular Hotrock 12. Read our full review!

Highs
  • Lightweight and durable

  • Pushed forward bottom bracket for easier pedaling

  • Training wheels don't require tools to take on and off

  • Thick, cushioning tires

  • Adjustable-height handlebar for growing kids

  • Fun color and graphics designs

Lows
  • No handbrake

  • Coaster brake can be challenging for kids learning to pedal

  • Seat post requires Allen key to adjust

Read Review

Geometry
Specs
Build
Frame

Specialized A1 Premium Aluminum

Fork

Hi-Ten steel

Bottom Bracket

Steel, loose ball bearings

Stem

Die Cast Aluminum, 35mm length, 22.2 clamp diameter

Handlebar

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

Saddle

Specialized Kids'

Seatpost

Steel, 22.2mm

TypeRigid

Pedals

Nylon platform w/ reflectors

Grips

Specialized, slip-on

Groupset
Crank

Hi-Ten steel, 76mm, Steel, 26T

Chain

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

Brakes

Coaster

TypeCoaster

Wheels
Rims

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

Spokes

Stainless, 14g

Front Hub

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

Rear Hub

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

Tires

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

Rider Notes
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First added November 6

Last updated May 9

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