1. They're overpriced. A quick Amazon search will show comparable kits for half of the price. You can buy a whole prebuilt ebike for the same price. 2. They're

1. They're overpriced. A quick Amazon search will show comparable kits for half of the price. You can buy a whole prebuilt ebike for the same price. 2. They're dangerous. FWD ebikes have a tendency to break traction on corners. 3. They tend to destroy the dropouts in your fork. 4. Installation is much more complex than "pop off your bike's front wheel". I can't even find the axle compatibility specs on their website. You know that there are many standards for front axles, right? Do not recommend.