Linnpower Electric Skateboard — Belt & Gear Ratio Guide
Belt-drive systems have long been loved by electric skateboard riders for their low manufacturing cost, simple structure, and flexibility. By swapping motor pulleys or wheel pulleys of different sizes, riders can easily fine-tune torque, acceleration, and top speed to match their riding style or terrain.
On Linnpower belt-drive boards, when upgrading to larger wheels, we generally recommend replacing the wheel pulley at the same time. This helps maintain proper torque balance, smooth power delivery, and overall drivetrain efficiency.
So you may be wondering:
What belt size should I use when changing to a different wheel pulley?
And if I only need a replacement belt, what is the original belt size for my board?
The chart and guide below will give you a clear, easy reference for all Linnpower belt-drive models.
Why belt size & gear ratio matter
Your drivetrain setup — belt length, motor pulley, wheel pulley and overall gear ratio — greatly influences ride characteristics. These elements determine acceleration, torque, top speed, motor load and compatibility when switching wheels (e.g. 85mm → 105mm or 6" pneumatics).
Stock Belt / Pulley / Gear Ratio Chart
| Model | Stock Belt | Stock Motor Pulley | Stock Wheel Pulley | Gear Ratio | CTC Distance* |
|---|---|---|---|---|---|
| Viper 216Wh | 245mm | 13T | 36T | 2.8 | 56-60 |
| Viper ER 432Wh | 255mm | 13T | 40T | 3.1 | 56-60 |
| MINI 5 | 245mm | 14T | 36T | 2.6 | 56-60 |
| Zephyr Base | 260mm | 14T | 36T | 2.6 | 62-66 |
| Zephyr Pro | 285mm | 14T | 45T | 3.2 | 62-66 |
| EVO MK-1 Lite | 360mm | 15T | 60T | 4.0 | 72-80 |
| *CTC Distance means Center-to-Center Distance (mm). Please avoid using the minimum or maximum values to calculate the required belt length. If you are unsure how to use this value to determine the belt length, please contact us before placing your order. | |||||
When using different wheel:
| Model | New Wheel Size | Stock Motor Pulley | Recommend Wheel Pulley | Belt Size |
|---|---|---|---|---|
| Viper | 105mm | 13T | 40T | 255mm |
| MINI 5 | 105mm | 14T | 40T | 260mm |
| Zephyr | 105mm | 14T | 40T | 270mm |
| Zephyr | 125mm/115mm | 14T | 45T | 285mm |
| EVO MK-1 Lite | 125mm | 15T | 45T | 310mm |
| EVO MK-1 Lite | 200cm | 15T | 66T | 380mm |
If you plan to modify your board setup, please make sure to check the belt tension before riding.
How to change gear ratio and new wheel diameter:
- JECNN Remote & ESC: https://www.youtube.com/watch?v=iDrW6CaFNRA&t=88s
-
Hobbywing Remote & ESC: https://www.youtube.com/watch?v=VtomGYEHelg
FYI:
As of now, all Linnpower boards use “Belt” for the Motor Type, and 7 for the Motor Pole Pairs.
As long as the drive system is not a hub motor, we should select “Belt Drive” under Motor Type — this applies to both belt-drive and gear-drive boards.
Need replacement belts, pulleys or help?
All replacement belts, motor pulleys and wheel pulley kits are available in our store. If you’re unsure which size you need, please contact our support team — include your model and current pulley sizes (or a photo) and we’ll check further.
Contact support: support@linnpower.com
* This article is updated periodically. If you don’t see the model you need, feel free to contact us directly.
