Specialized 2024 Riprock Coaster 20

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.

The A1 premium aluminum 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 tires deliver tons of traction, comfort, stability, and fun over all types of terrain.

Specifications

Specialized 2024 Riprock Coaster 20

 

Frame

Colour: Gloss Dune White/White Sage, Gloss Limestone/Purple Haze, Satin Fiery Red/Dark Navy and Satin Deep Marine/Fiery Red
Frame: Specialized A1 Premium Aluminum
Fork: Hi-Ten steel
Shock: NA

 

 

Drivetrain

Crankset: Hi-Ten steel, 114mm
Pedals:
Chain: KMC Z510, single-speed, anti-drop, 1/2"x1/8"
Bottom Bracket: Feimin FP-B701, 68MM
Rear Derailleur: NA
Front Derailleur: NA
Derailleur Shifter: NA
Freewheel/Cassette: Steel, 36T

 

 

Wheels

Tyres: Rhythm Lite, 30 TPI, wire bead, 20x2.3"
Wheels/Rims: 20" alloy, 16mm depth, 21mm internal width
Hubs: [F] Steel, bolt-on, 100mm spacing, loose ball bearings, 36h [R] Coaster brake, bolt-on, loose ball bearings, 110mm spacing, 18T cog, 36h

 

 

Braking System

Brakes: [F] V-brake, linear pull [R]Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm
Brake Levers:

 

 

Other

Handlebar: BMX, steel, 10-degree backsweep, 4-degree upsweep, 130mm rise, 560mm width, 22.2mm
Stem: Die Cast Aluminum, 37mm length, 10 degree, 22.2 clamp diameter
Saddle: Specialized Kids' Henge
Seat Post: Steel, 25.4mm

 

Geometry

Specialized 2024 Riprock Coaster 20

	20
Crank Length	114
Handlebar Width	560
Stem Length	37
Saddle Width	143
Seatpost Length	220
Head Tube Angle	70
Wheelbase	858
Front Center	476
Reach	315
Top Tube Length, Horizontal	449
BB Drop	42
Fork Rake	23
Trail	71
Stack	413
Chainstay Length	386
Standover Height	477
Head Tube Length	80
Seat Tube Angle	72
Seat Tube Length, BB Center to Top	250