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2024 Specialized

Riprock Coaster 20

A 20″ aluminum frame general youth bike with coaster brakes.
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Manufacturer Price

€370($430)
Weight23.4 lbs  
FrameAluminum
SuspensionRigid
ForkSteel
Wheels20″ Aluminum
BrakesCoaster
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Reviews
Two Wheeling Tots
Specialized Riprock 20 and 24 Review

Nov 2023 · Natalie Martins

More trail worthy than previous models, the 2022 Specialized Riprock 20 and 24 sport some great improvements, but stop short of perfection.

Highs
  • Redesigned with slacker, more modern geometry

  • Hydraulic disc brakes

  • Internally routed for dropper post

  • Lightweight compared to predecessor

  • 9-speed drivetrain with trigger shifters

  • High-performing Manitou air fork on Expert model

  • Affordable price

  • Dropper post compatible even on 20-inch

Lows
  • Low stack geometry may not fit taller riders well

  • Minimum seat height too high for small kids (seat post cannot be slammed fully)

  • Handlebar too wide for some young riders

  • Base model tires not tubeless-ready

  • Price jump to Expert model is significant

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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.

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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

Geometry
Specs
Build
Frame

Specialized A1 Premium Aluminum

ColorsGloss Dune White / White Sage; Satin Fiery Red / Dark Navy; Satin Deep Marine / Fiery Red

Fork

Hi-Ten steel

Bottom Bracket

Feimin FP-B701, 68MM

Stem

Die Cast Aluminum, 37mm length, 10 degree, 22.2 clamp diameter

Handlebar

BMX, steel, 10-degree backsweep, 4-degree upsweep, 130mm rise, 560mm width, 22.2mm

Saddle

Specialized Kids' Henge

Seatpost

Steel, 25.4mm

TypeRigid

Pedals

Nylon platform w/ reflectors

Grips

Specialized, slip-on

Groupset
Crank

Hi-Ten steel, 114mm

Chain

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

Brakes

Coaster

TypeCoaster

Wheels
Rims

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

Spokes

Stainless, 14g

Front Hub

Steel, bolt-on, 100mm spacing, loose ball bearings, 36h

Rear Hub

Coaster brake, bolt-on, loose ball bearings, 110mm spacing, 18T cog, 36h

Tires

Rhythm Lite, 30 TPI, wire bead, 20x2.3"

Rider Notes
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First added October 4

Last updated June 4