I started building a frame a while back. It was originally going to be a fat tire trail mini. After seeing the trike posts, I decided to go to 3 wheels. I started by building a wide mini style frame. This will be built 90% from junk. The upper bars of the frame were made from the handles from a Merry Tiller Suburban. The tubing is nearly 1/8" thick wall. The forks and lower frame is tubing from a freight dolly. The triple trees were cut from a piece of plate from the scrap bin. The engine plate is a piece cut from the Suburban tiller. About 1/8" thick. I put an extra 1/8 by 2" flat stock across the front and rear and one in the center running front to back, for extra strength. Made some bearing blocks for a jackshaft and mounted them with some end cuts of bar stock.After building the mini frame, I grafted a box frame and a section of each side of a mower frame to the rear. The differential came from the same mower. It's a Peerless 100 058. It has 3/4" axles. The bearings are sealed precision bearings. They are mounted to the sides with the cups pictured with the forks. The rear tires are 15X6.00-6, and the front is a 13X5.50-6. I left plenty of room to go bigger on the front and rear. I made the forks wide and the rear fender mounts high. :weld::hack::grind::hammer: