Ok, here we go, I just wanted a resto project to work with my son, talked to a heavy equipment mechanic at work about my desire, he with my luck said he had a friend that wanted to give him a bike. But since he has been working for years on his Ariel square four, he wasn't interested. So he asked his buddy and he got it for me for a case of beer. It was rough and all in pieces except for seized frame, definitely not a roller! Lol. Engine components were in a shed and bike was just put outside for a couple of years. I was just going to hold on to it for parts and find a better condition bike. But once I joined this forum and started to investigate what a K0 was I started to get excited!! Wife not too thrilled! Once I picked the tank and it was the original wrinkle tank, I made up my mind to rebuild it. Everything was replaced, fork seals, tires, bearings, pistons, 0.25mm bore job,all engine seals, lapped valves etc. I think I did more reading and videos than actually working on bike lol. But feedback was incredible on this board!