RoyalBaby Formula Kids Bike
- Wheel Size: 18 inches
- Age Range: 5 - 9 years
- Brake Style: Caliper, Coaster
- Number of Speeds: 1
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0B5X9ZSLLCategory: Kids' Bikes
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Overview
The RoyalBaby RB18-15FG is a single-speed city bike designed for children ages 2-8, available in wheel sizes from 12 to 20 inches. It features a rigid frame, coaster and caliper brakes, and is 95% pre-assembled for convenience. Ideal for beginner riders on roads or BMX-style paths.
- Multiple wheel sizes (12-20 inch) to accommodate growing children
- 95% pre-assembled for quick and easy setup
- Adjustable handlebars and seat for customized comfort
- Coaster and caliper brakes provide reliable stopping power
Specifications
| Brand | RoyalBaby |
|---|---|
| Dimensions & fit | |
| Wheel Size | 18 inches |
| Weight | 26 pounds |
| Capacity & performance | |
| Age Range | 5 - 9 years |
| Number of Speeds | 1 |
| Construction & materials | |
| Frame Material | Carbon Steel |
| Other details | |
| Brake Style | Caliper, Coaster |
Frequently asked questions
Does the RoyalBaby RB18-15FG come in different wheel sizes?
Yes, the RB18-15FG is available in 12, 14, 16, 18, and 20-inch wheel sizes to fit children from about 2 to 8 years old.
Is the bike pre-assembled?
The bike is 95% pre-assembled, with only a few steps needed to attach the handlebars, seat, and pedals.
What type of brakes does it have?
It features both a coaster brake (pedal backward) and a caliper brake on the front wheel for safe and easy stopping.
Can the handlebars and seat be adjusted?
Yes, both the handlebars and seat are adjustable to accommodate your child's growth and ensure a comfortable riding position.