I put this together a couple of weeks before the Abita Springs bike fest in 2003 as a proof of concept bike. It's made from 7 or 8 junked out bikes. Frame is a 26" to get wheelbase and the rest is off various 20" bikes. Rides good but requires a definite learning period with the front wheel drive. Over the next year or so it morphed into quite a nice ridding bike and finally to a trike. The final version had a 39/52 chainring from a 27" Sears and Roebuck and the drive(front) wheel was from a 20" 6 speed 14/28 so it is geared pretty good. No welding involved. It was ridden by my 13 year old grandson and his friends so I know it was durable. One day I let one of the neighbor kids go and he brought most of it back in a trailer. I have a long bike project in progress now so I don't know when or if I will put it back together. I have some detail pictures if anyone is interested.