3CZY S900 Electric Bike Conversion Kit: 15A controller
Available Options
Ever wished your trusty old bike could keep up with the times? Now it can! With this top-notch conversion kit, you're just a few tweaks away from zipping around on an electric version of your beloved ride. The heart of the kit? A 15A controller that's all about smart power use, paired with an S900 LCD display that keeps you in the loop with real-time stats—because who doesn't love a good dashboard? And yes, it's waterproof, because Mother Nature loves throwing curveballs.
Here's the scoop on what's inside the box:
- First up, the 15A controller—your bike's new brain, making sure every ounce of power is used wisely.
- Then there's the S900 LCD display, because guessing your speed is so last century.
- Waterproof? Absolutely. Rain or shine, this kit's got your back.
- And the best part? Everything you need is included, turning 'someday' into 'today' with straightforward installation.
- LCD display S900
- Waterproof design
- Easy installation
- Comprehensive kit
- 15A controller
General specs
- Brand: 3CZY
- Model: S900
- Seller: Joom
- Controller: 15A
- Display: LCD S900
- Waterproof: Yes
- Installation: DIY
- First listed by seller: 7/2/25
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 S900 15A controller
|
3d printing machine S900 30A Controller
|
Sport2ZY JN25A Lightweight motor controller
|
ZY-Sport-N S866 22A waterproof controller
|
ZY-Sport-N S810 25A motor controller
|
Electric Bike Conversion Kit 17A controller
|
|
| Brand | 3CZY | 3d printing machine | Sport2ZY | ZY-Sport-N | ZY-Sport-N | Sport2ZY |
| Model | S900 | S900 | JN25A | S866 | S810 | |
| Color | ||||||
| Rating |
|
|
|
|
|
|
| Price | $154.99 | $150.53 | $203.59 | $158.05 | $134.88 | $164.16 |
| Seller | Joom | Joom | Joom | Joom | Joom | Joom |
| Update | August 13, 2025 | September 2, 2025 | August 12, 2025 | August 12, 2025 | August 12, 2025 | August 12, 2025 |
| Controller Amperage | 22A | 25A | 17A | |||
Electric Bike Conversion Kit
Dylan F.
Quebec City, QC
July 11, 2025
As a budget-conscious guy with a mikitary background, I appreciate things that are practical and durable. This kit from 3CZY has been a game-changer for my daily rides around Quebec City. I installed it myself over a weekend—it wasn't too hard, but having some mechanical experience helped. My tip: take your time with the wriing to avoid any hiccups. It's been reliable for short trips, and my kid loves when I zip around with it. The power management is efficient, and I like that it doesn't feel overpowered, just a nice assist. From what I feel, it's a solid upgrade if you're handy and want to save some cash instead of buying a new e-bike. 🚴
- Pros: I gotta say, the kit is fairly straightforward to install, and it makes my old bike feel like new again. The display shows all the important info clearly, and it handles wet weather without a hitch, which is great for unpredictable days. From what I feel, it uses power smartly, giving a good boost without drainimg too quickly.
- Cons: On the downside, the installation took a bit lnger than I expected, and I had to fiddle with some parts to get everything just right. It might not be the best fit for all bike types, so check compatibility first. Also, while it's waterproof, I'd still be cautious in heavy downpours.