Riprock Coaster 20
Shipping & Delivery
Built, tuned and handed over by our mechanics. Allow 48 hours if it is still boxed.
Built, delivered and set up at your door.
Boxed and part-assembled — we recommend a shop finishes the build. Not WA or NT.
Send us your address and we will price the freight.
Order-ins are placed the day you buy. We will email tracking as soon as it is on its way.
Product Info
Details + Specs
Riprock Coaster 20
Traction, control, confidence and fun.
The Riprock Coaster 20 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 tyres that provide a high degree of shred-ability - delivering exceptional traction, control and confidence for riding rough, off-road sections and city streets alike.
Best for: Kids stepping up to real trails, gravel paths and city streets on 20-inch wheels.
At a glance
Wheel size
20"
Frame
A1 Premium Aluminium
Brake
Steel coaster brake plus V-brakes
Weight
10.6kg
Key highlights
The A1 premium aluminium 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.
20x2.3" Rhythm Lite tyres deliver tons of traction, comfort, stability, and fun over all types of terrain.
Complete specification
Full build details
Components are grouped by bike system so the complete build is easy to scan.
Frameset
Frame
Specialized A1 Premium Aluminum
Seat Binder
Bolt-type, 28.6mm
Fork
Hi-Ten steel
Brakes
Front Brake
V-brake, linear pull
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
Wheels & Tyres
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 Tyre
Rhythm Lite, 30 TPI, wire bead, 20x2.3"
Rear Tyre
Rhythm Lite, 30 TPI, wire bead, 20x2.3"
Inner Tubes
Schrader valve
Cockpit
Stem
Die Cast Aluminium, 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
Saddle
Specialized Kids' Henge
Seatpost
Steel, 25.4mm
Accessories
Pedals
Nylon platform w/ reflectors
Weight
Weight
10.6kg (23 lb, 5.9 oz)
Weight Size
One Size
Weight is based on a production painted bike in the stated reference size. Actual weight can vary with colour, size and component variation. Specifications are subject to change without notice.
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