Dual motor, 10k watt, 400amp E-bike build

2025/7/7 Edited to

... Read moreBuilding a 10,000-watt electric bike isn't just a project; it's an adventure into the extreme end of personal electric transport. When I first started researching, the idea of having that much power under my control was exhilarating, but also a little daunting. The term 'overpowered' truly applies here, and that's exactly what makes it so much fun! For anyone looking into or dreaming about a high-power e-bike like a 10,000-watt beast, understanding the key components is crucial. First, the motors: a dual motor setup for 10kW is common, allowing for incredible torque and speed. You're typically looking at hub motors for this kind of power, as they're simpler to integrate and incredibly robust. Each motor needs to be capable of handling its share of the wattage, and often they're rated for even more than 5000W peak, giving you headroom. The sheer acceleration these motors provide is unlike anything you've experienced on a regular bike or even most e-bikes. Next up, the battery – this is the heart of your monster. For a 10,000W system, you'll need a high-voltage, high-capacity pack. Think 72V or even 84V, with a substantial amp-hour (Ah) rating, perhaps 30Ah or more, to provide a decent range. Lithium-ion cells (like 18650 or 21700) are standard, but the quality of the cells and the Battery Management System (BMS) are paramount for safety and longevity. A cheap battery can be dangerous, so invest wisely here. The BMS handles charging, discharging, and balancing, protecting your expensive cells. Then there's the controller, often the unsung hero. The original title mentions 400 amps, which is a serious amount of current! Your controller needs to be matched perfectly to your motor and battery combination. It's what dictates how smoothly and efficiently that power is delivered. A good controller offers programmable settings, allowing you to fine-tune acceleration, top speed, and even regenerative braking. Overheating is a real concern with such high power, so look for controllers with robust cooling or consider adding external heatsinks. Finally, don't overlook the chassis. A standard bicycle frame simply won't cut it. You need a strong, often custom-built, motorcycle-style frame and high-quality suspension components to handle the weight, speed, and forces involved. Motorcycle tires are also often necessary for better grip and durability. Safety gear, like a full-face helmet and armored clothing, becomes absolutely essential. This isn't just an e-bike anymore; it's a light electric motorcycle in terms of performance. While the thrill of riding such an 'overpowered' machine is incomparable, remember to always prioritize safety and check your local regulations. These aren't toys, and they demand respect. The investment in parts, time, and effort is significant, but for me, the experience of building and riding my own 10,000-watt e-bike has been incredibly rewarding and truly 'fast AF'!

1 comment

Elsa's images
Elsa

It's cool, but I dare not ride it.