3CZY 866 Brushless Motor Dual Drive Controller: Waterproof design
Available Options
If you're tinkering with your electric bike and craving more oomph, this brushless motor dual drive controller might just be your new best friend. Not only does it laugh in the face of rain (thanks to its waterproof design), but it also flexes its muscles with support for 24V, 36V, and 48V setups, pushing out a hefty 250W to 350W of power—because who doesn't want their bike to feel like it's got a jetpack? And with the 866 LCD display thrown into the mix, you'll get all the juicy details about your ride's performance at a glance. Best part? Slapping this bad boy onto your bike is easier than assembling flat-pack furniture (and way more satisfying). Perfect for anyone looking to give their electric steed a serious upgrade without the headache.
- LCD display
- Multiple voltage support
- High power output
- Easy installation
- Waterproof design
General specs
- Brand: 3CZY
- Model: 866
- Seller: Joom
- Voltage Support: 24V, 36V, 48V
- Power Output: 250W, 350W
- Waterproof: Yes
- Display Type: LCD
- First listed by seller: 7/4/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Video Reviews
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
3CZY 866 Waterproof design
|
3CZY S866 22A motor controller
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3CZY S866 LCD display for easy monitoring
|
ZY-Sport-N S866 36V/48V 25A controller
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3CZY S866 Compatible with 36V/48V systems
|
ZY-Sport-N S866 22A general controller
|
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| Brand | 3CZY | 3CZY | 3CZY | ZY-Sport-N | 3CZY | ZY-Sport-N |
| Model | 866 | S866 | S866 | S866 | S866 | S866 |
| Color | ||||||
| Rating |
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|
|
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| Price | $108.04 | $108.19 | $96.14 | $162.81 | $151.24 | $119.58 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 13, 2025 | August 13, 2025 | August 13, 2025 | August 12, 2025 | August 13, 2025 | August 12, 2025 |
| Display Type | LCD | Waterproof | LCD | |||
| Compatibility | Electric bicycles | 500W e-bikes, electric scooters | 36V, 48V | |||
Brushless Motor Dual Drive Controller
Arthur R.
Cardiff
July 12, 2025
As someone who enjoys tinkering with gadgets and wanted to upgrade our family's electric bikes for smoother rides, I had high hopes for this controller. I expected it to make the bike feel more powerful and responsive, but in reality, it seems to fall short, not quite living up to the promise of a significant boost. It works fine for casual use, but for anyone looking for a real upgrade, it might not hit the mark. Installation was light as a feather, which is a plus, but overall, it's just okay—not terrible, but not great either.
- Pros: The controller was incredibly easy to install, fitting onto my bike without any fuss, and it handles wet conditions well, keeping things running smoothly in the rain. It supports various power setups, which gives some flexibility for different bike types.
- Cons: The power output seems a bit underwhelming compared to what I expected, not delivering the extra oomph I was hoping for, and the display, while handy, doesn't provide as much detail as I'd like, making it hard to gauge performance accurately.