Hi just wanted to introduce myself, My name is Chuck I have been building motorized bikes for 4 years. Started off as a Spitfire distributor but then they closed their doors and left us for dead.I still get kits from around the country and build what I think is a respectable product. All my frames have welded engine mount along with welded tank mounts using vibration isolators to mount the tanks. Have also rebuilt a dozen or so engines and experimenting with porting and polishing have found these engines can really come alive.I am having alot of fun and look forward to hearing form others.