Quick Summary
The Hiboy BK1 is an electric balance bike listed for children ages 3-5. It has 12-inch tires, two speed modes, a kick-off start and an adjustable seat. Compare its seat range, speeds and stated riding range with the rider and intended use.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand and model | Hiboy BK1, part number BK1. |
| Intended age | Listed for ages 3-5. Age alone does not establish fit. |
| Tires and seat | 12-inch tires; seat adjusts from 17.2 to 19.1 inches. |
| Speed modes | 5.6 mph and 9 mph. |
| Motor and battery | 150W peak motor, 100W in regular mode; 21.6V, 2.6Ah battery. |
| Stated range and charging | Up to 4.9 miles per charge; stated charging time is 3-4 hours. Treat the range as a maximum claim, not a guaranteed ride distance. |
| Starting and braking | Requires a kick-off start and has a front V-brake. |
| Size and weight | 35.9 x 20.2 x 24.4 inches; 20.06 lb. |
| Ratings and color | Listed with UL 2272 and an IPX4 rating; white. IPX4 is not a waterproof rating; check the product instructions for permitted conditions. |
| Warranty | Listed as 1 year; check the applicable warranty terms. |
Key Features Explained
The bike requires the rider to kick off the ground to glide before pressing the accelerator. The two listed speed modes are 5.6 mph and 9 mph; consult the product instructions for how to select and use them.
The 17.2- to 19.1-inch seat adjustment gives a specific range to compare with the rider. The stated brake is a front V-brake; do not assume a rear brake is included.
What to Compare Before Buying
- Fit: Compare the seat range and 12-inch tire size with the rider. Confirm eligibility and any rider limits in the product instructions.
- Speed and distance: Consider whether the 5.6 mph and 9 mph modes and the stated maximum range of 4.9 miles suit the intended riding area. Actual range is not guaranteed.
- Charging: Account for the stated 3-4-hour charging time and follow the product instructions for charging.
- Weather limits: IPX4 does not establish suitability for every weather condition. Check the product instructions for use and care limits.
Compatibility, Size and Fit
The bike measures 35.9 x 20.2 x 24.4 inches and weighs 20.06 lb. Compare its dimensions with available storage space and the seat range with the rider. Seat adjustment alone does not establish fit, so confirm the rider limits in the product instructions.
How It Works
The rider kicks off the ground to glide, then presses the accelerator. The bike has two speed modes and a front V-brake. Use the product instructions for details about mode selection and operation.
Before You Decide
Check the rider’s fit against the seat range, consider the speed modes and stated maximum range, and review the instructions for setup, charging and operation. Confirm the permitted conditions for the IPX4-rated bike.









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