# How to Limit Speed on a CEMOTO Electric Dirt Bike

> Three ways to cap the top speed — and what each one actually does.
>
> **Applies to:** D-series

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## The three methods

| Method | Parameter | What it does |
| --- | --- | --- |
| **Speed limit** | **P08** | Caps top speed. `0` = no limit; the value is in km/h |
| **Drive mode** | **P10** | `0` = power, `1` = electric, `2` = coexist |
| **Start intensity** | **P12** | `0`–`5` — how hard the motor comes in from a stop |

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## Steps

1. **Decide which you actually want.** If the concern is *top speed*, use **P08**. If the concern is *how abruptly the bike launches*, that is **P12**, not P08.
2. **Open the parameter menu** and navigate to the chosen parameter.
3. **Set the value.** For P08, the number is in **km/h** — 25 km/h ≈ 16 mph.
4. **Save, exit, and power cycle.**
5. **Test at low speed** in a safe open area, then confirm the cap holds.

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## A speed cap is not the same as gentler acceleration

**A common misconception.** Lowering P08 limits how fast the bike will eventually go. It does **not** change how hard it accelerates up to that speed — the bike still comes off the line just as sharply. For a new or younger rider, **P12 is usually the more useful setting.**

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## Watch out for

- **Setting P08 to `0` expecting "slow".** `0` means **no limit**, not "stop".
- **Assuming a speed cap makes the bike suitable for a smaller rider.** Fit, reach and weight matter more than top speed — see [Rider Fit & Sizing](https://wiki.cemotoride.com/link/301).
- **Changing P03 or P14 while you are in the menu.** Neither has anything to do with speed, and both cause real faults.

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## Related

- [P-Setting Guide](https://wiki.cemotoride.com/link/348)
- [Rider Fit & Sizing](https://wiki.cemotoride.com/link/301)
- [Riding Laws & Compliance](https://wiki.cemotoride.com/link/381)
- [Tutorials Index](https://wiki.cemotoride.com/link/393)