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Riprock Coaster 20
Riprock Coaster 20
We deliver! Just say when and how.
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 aren't mutually exclusive anymore.
While there are many notable features that make the Riprock awesome, it's the 2.3-inch tires that provide a high degree of, well, 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
FRAMESET
Frame
Specialized A1 Premium Aluminum
Fork
Hi-Ten steel
Seat Binder
Bolt-type, 28.6mm
COCKPIT
Saddle
Specialized Kids' Henge
SeatPost
Steel, 25.4mm
Stem
Die Cast Aluminum, 37mm length, 10 degree, 22.2 clamp diameter
Handlebars
BMX, steel, 10-degree backsweep, 4-degree upsweep, 130mm rise, 560mm width, 22.2mm
Grips
Specialized, slip-on
BRAKES
Front Brake
V-brake w/ tool-less reach adjust brake lever
Rear Brake
V-brake w/ tool-less reach adjust brake lever
DRIVETRAIN
Chain
KMC Z510, single-speed, anti-drop, 1/2"x1/8"
Crankset
Hi-Ten steel, 114mm
Chainrings
Steel, 36T
Bottom Bracket
Feimin FP-B701, 68MM
ACCESSORIES
Pedals
Nylon platform w/ reflectors
WHEELS
Rims
20" alloy, 16mm depth, 21mm internal width
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
Spokes
Stainless, 14g
Front Tire
Rhythm Lite, 30 TPI, wire bead, 20x2.3"
Rear Tire
Rhythm Lite, 30 TPI, wire bead, 20x2.3"
Inner Tubes
Schrader valve
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
Geometry
| 20 | |
|---|---|
| Crank Length | 114mm |
| Handlebar Width | 560mm |
| Stem Length | 37mm |
| Saddle Width | 143mm |
| Seatpost Length | 220mm |
| Seat Tube Length, BB Center to Top | 250mm |
| Top Tube Length, Horizontal | 449mm |
| BB Drop | 42mm |
| Chainstay Length | 386mm |
| Seat Tube Angle | 72° |
| Head Tube Angle | 70° |
| Fork Rake | 23mm |
| Trail | 71mm |
| Front Center | 476mm |
| Wheelbase | 858mm |
| Standover Height | 477mm |
| Head Tube Length | 80mm |
| Reach | 315mm |
| Stack | 413mm |
Manual Downloads
Rider Reviews
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