SPECIALIZED
Riprock Coaster 20 Bike
$499.99
The Specialized Riprock 20 Coaster is built for young riders ready to explore beyond the sidewalk. With wide 2.3” tires for extra grip, a lightweight aluminum frame, and a simple coaster brake for easy stopping, it’s the perfect first trail bike—fun, confidence-boosting, and built to grow with your little shredder.
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Product details
| Use | Kids’ trail riding and everyday adventure |
| Frame | Specialized A1 Premium Aluminum — lightweight, durable, and easy to maneuver |
| Fork | Hi-Ten steel for a smooth, controlled ride |
| Brakes | Reliable steel coaster brake for safe, intuitive stopping |
| Drivetrain | Single-speed simplicity with a 36T steel chainring and KMC Z510 chain |
| Wheels | 20” alloy rims, 16mm depth, 21mm internal width |
| Tires | Rhythm Lite 20×2.3” for excellent traction and stability across all surfaces |
| Cockpit | BMX-style steel handlebars with comfortable slip-on grips |
| Saddle | Specialized Kids’ Henge for proper support and comfort |
| Pedals | Durable nylon platform pedals with reflectors for safety |
| Extras | Low standover geometry for easy mounting and confident control |
| Weight | 10.6 kg (23 lb, 5.9 oz) — One Size |










