i've been looking at these: http://www.monsterscooterparts.com/...ss-electric-motor-9-tooth-chain-sprocket.html http://www.monsterscooterparts.com/...moto-9-tooth-8mm-05t-chain-sprocket-1018.html I need a motor that can output to a bike sprocket for a possible near-future project involving an electric bike driven through a 3 speed internal gear hub. I can file down a 415 or 420 sprocket. But I need some advice on how to mount these motors in-frame, without welding or using anything other than hand tools and a drill, and any links to cheaper motors. I'm going to over volt them so I can't spend much on them. I also am very poor and this will be my first big project in almost a year. A 12-volt motor that's at least 200 watts would be perfect if anyone knows of one. It needs gear reduction because I am chaining it directly to the sprockets by the pedals (or directly to the 3 speed hub, which ever is easier). I will remove the pedals and make new foot rests - this is a no-human-power bike, to be built as cheaply as possible and then upgraded over the next year. The main issue here is mounting easily. Thanks in advanced.