Re: Which is better? The electric motor or gas motor?
i ordered my kit from gasbike.net so i dont know anything about thelashop but it looks like a good kit and price. all kits come with the needed parts to install on a bike but you will still need basic tools from a toolbox to install it. these kits will not fit on that bike in your picture(not enough room in the v-frame middle part of that bike).
these kits will make a bike go any where between 20-30mph @ around a average 100-150mpg.for bicycles you will need a mens mountainbike or cruiser bike.