I've spent way too many hours on this bike getting everything to work perfectly. I'm pretty confident in the chain guides which was a big concern before. The fuel tank is a CO2 Paintball tank. The bikes top speed on GPS was 39mph, it's the 80cc kit with road bike gearing so i can pedal at those speeds. Hope you like it...i sure do



Skate board wheel as the roller

I kept dropping my chain over bumps, not anymore.