The swytch kit is convenient you don't have to buy a new bike rather, you can convert your old bike into an e-bike. I have the 500w wheel, which has been great so far. I usually use the padel assist function when I am going to work or school so I don't sweat. It also comes in handy after soccer practice that when I usually go all out (23-25mph). Swytch makes life easier, it's a great convenience. The only issue that I have is with mileage I bought the 50 mile battery pack but I barely get 15 miles going on pedal assist 3. If the swytch team could fix that, then this product would deserve 5 stars.