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Riprock 20 Coaster

2018 Riprock 20 Coaster

Traction, control, confidence, and fun—the Riprock 20 Coaster is the perfect bike for your kid to start hitting the trails with. And with the simple coaster brake design, safety and fun are no longer mutually exclusive.

While there are many notable features that make the Riprock awesome, it's the 2.3-inch tires that provide the high degree of shred-ability—delivering exceptional traction, control, and confidence for riding rough, off-road sections and city streets alike. And when you combine the big tires with sturdy 20-inch wheels, an easy-to-use coaster brake that all but eliminates the threat of the dreaded endo, and a single-speed setup, you have the perfect mountain bike to get your little Ripper out on the trail.

Technical Specifications

FRAME

Specialized A1 Premium Aluminum

1

RIMS

20", alloy single wall, 36h

4

SEAT BINDER

Bolt type, alloy, 28.6mm

3

FORK

Hi-Ten, 1-1/8" steerer

2

SPOKES

Stainless, 14g

7

REAR HUB

Rear coaster brake, bolt on, 110mm spacing, loose ball bearings, 18T cog, 36h

6

FRONT HUB

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

5

CHAIN

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

11

REAR TIRE

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

9

FRONT TIRE

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

8

INNER TUBES

Schrader valve

10

STEM

Alloy, 10-degree rise, 22.2mm clamp, 37mm

15

BOTTOM BRACKET

Steel, loose ball bearings

14

CHAINRINGS

36T

13

CRANKSET

Hi-Ten steel, OPC, 114mm

12

FRONT BRAKE

V-brake, alloy, linear pull, tool-less reach adjust brake lever

20

SEATPOST

Steel, 25.4mm

19

SADDLE

Specialized Kids

18

GRIPS

Specialized, slip-on

17

HANDLEBARS

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

16

PEDALS

Nylon platform w/ reflectors

22

REAR BRAKE

V-brake, alloy, linear pull, tool-less reach adjust brake lever

21

* Weights based on production painted frames as pictured. Actual weights will vary based on colourway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

9
Crank Length114mm
Handlebar Width560mm
Stem Length37mm
Seatpost Length220mm
Seat Tube Length, BB Center to Top250mm
Fork Rake23mm
Standover Height477mm
Stack413mm
Reach315mm
Head Tube Length80mm
Head Tube Angle70°
BB Drop42mm
Trail71mm
Front Center476mm
Chainstay Length386mm
Wheelbase858mm
Top Tube Length, Horizontal449mm
Seat Tube Angle72°
Geometry

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