







Darwin II Kids Belt-Drive Bike 16"/20"
Built for young adventurers aged 5–9, this 16"/20" kids bike combines aerospace-grade aluminum construction with a quiet, low-maintenance belt-drive system. Lightweight yet durable, it features a low-step frame for easy mounting and adjustable seat height to grow with your child. The integrated steering limiter, non-slip silicone grips, and responsive V-brakes ensure a safe and stable ride on any surface. With puncture-resistant INNOVA tires and a corrosion-resistant metallic finish, this bike is ready for daily play and long-term exploration.
| Category | 16" Version | 20" Version |
|---|---|---|
| Recommended Age | 5–9 years old | 6–12 years old |
| Frame, Fork, Handlebar, Seatpost, Wheels | Aluminum alloy | Aluminum alloy |
| Tire | INNOVA 16×1.5 | INNOVA 20×1.75 |
| Transmission | Belt-Drive System | Belt-Drive System |
| Brake | V-Brake | V-Brake |
| Saddle | ROCKBROS Kids Saddle | ROCKBROS Kids Saddle |
| Weight Limit | Up to 45 kg | Up to 55 kg |
| Special Features | Steering limiter, non-slip grips, corrosion-resistant finish | Same as 16" version |



Darwin II Kids Belt-Drive Bike 16"/20"
Sale price$237.00 USD
Regular price$439.99 USD










