CosyHome S866 Brushless Motor Controller for Bicycle: Color display
Available Options
If you're the kind of bike enthusiast who doesn't just ride but dominates the road or trail, the Brushless Motor Controller for Bicycle is your new best friend. It's not just any controller—it's like the Swiss Army knife of bike upgrades. Picture this: a color display so bright and clear, you'll actually want to glance at your stats, even when the sun's playing peek-a-boo. And with a 40 A current capacity, it's like giving your bike a shot of espresso—suddenly, hills feel like speed bumps.
But wait, there's more (because why stop at good when you can have great?). This little powerhouse offers triple mode operation, meaning you can flip between modes faster than a pancake at Sunday brunch, tailoring your ride to whatever madness the day throws at you.
Why you'll love it:
- Say goodbye to guesswork with enhanced motor control that feels like it's reading your mind.
- Built like a tank (but, you know, lighter and way more useful on a bike).
- Installation? Easier than assembling flat-pack furniture, and it plays nice with most brushless motors out there.
- 40 A current
- Triple mode operation
- Professional grade
- Color display
General specs
- Brand: CosyHome
- Model: S866
- Seller: Joom
- Current: 40 A
- Display Type: Color
- Operation Modes: Triple
- First listed by seller: 6/21/25
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
CosyHome S866 Color display
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3CZY S866 22A motor controller
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Brushless Motor Controller Intelligent heat dissipation
|
Electric Bike Controller Kit 36V/48V compatibility
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3CZY S866 LCD display for easy monitoring
|
Electric Bike Motor Controller Kit 36V 800W power output
|
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| Brand | CosyHome | 3CZY | 3d printing machine | CosyHome | 3CZY | CosyHome |
| Model | S866 | S866 | S866 | |||
| Color | ||||||
| Rating |
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| Price | $94.09 | $107.55 | $69.81 | $75.98 | $95.58 | $33.22 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 29, 2025 | August 13, 2025 | August 29, 2025 | August 29, 2025 | August 13, 2025 | August 30, 2025 |
| Display Type | Color | Waterproof | LCD | |||
| Compatibility | Electric bicycles | Electric bicycles | 500W e-bikes, electric scooters | |||
Brushless Motor Controller for Bicycle
James G.
New York, NY
June 30, 2025
As a logistics specialist, I'm used to things working precisely, so when I installed this controller on my bike, I had high hopes. The manuals were helpful, I must say, but the reality fell a bit short. It does give the bike a nice boost, making hills less daunting, but the mode changes are frustratingly slow at times. I've been using it for over six months now, and while it's held up okay, I can't help but feel a bit let down by the hype. It's functional, but not the game-changer I expected. For the price, I suppose it's fine, but I wouldn't call it dominating anything—more like a decent helper on my rides around New York.
- Pros: The display is extremely bright and clear, making it easy to read my stats even in direct sunlight, which is a huge plus for an old guy like me. The installation was straightforward, as it seemed to me, and it works well with my existing setup, feeling like it understands what I want from the motor.
- Cons: Despite the promises, I found the switching between modes to be a bit clunky and not as smooth as I hoped, which was disappointing. The build quality, while decent, doesn't quite live up to the 'tank' comparison and feels a bit flimsy in places.