just getting the required first post out of the way. location: indiana bikes: first bike i have no idea. it's a 26" 21 speed mountain bike, purchased used. if i had to guess i would say giant brand. pk80 motor. mods include sbp expansion chamber, 36 tooth sprocket, straight shot performance intake. weight with full tank is 80 lbs. and top speed thus far is 37.3 mph with 200 miles on odometer. finished mid-april '12. second bike is 26" 7 speed schwinn southport cruiser. pk80 motor 44 tooth sprocket. no mods as of yet. weight with full tank is 60 lbs. and speed unknown as i just finished it today and still in break-in period. before april i was clueless about motorbikes. just built 2 in 1 month and now i'm trying to find room in my budget to build my 3rd idea for a bike. quite addicting. i know i need to slow down and enjoy what i have but it is quite a compulsion.