I'm currently planning to change things on this mini chopper: I will make the ground clearance a bit higher (I must admit that the frame touches the road in curves) and the fork stronger. If you can afford it, use a compressor and real automotive paint, the paint will be nicer and stronger. The paint is really simple and have been done for less than 30€! I used graffiti paint cans, it is really cheap and easy to apply. Hurting yourself because you didn't put a helmet or because your brakes are not strong enough is something so stupid and can ruin your pleasure! My mini chopper does over 60km/h, and I'm glad I have good brakes at this speed. The final drive comes from a pocket bike and I had other problems with it, the engine has so much torque that I broke a chain and I nearly destroyed the wheel where the sprocket is attached!īrakes are also a really important! My advice is to put brakes before the engine, and to have strong brakes. This is a picture of the mini chopper engine after it was painted. Belts are just so simple and much more flexible than chains, it's paradise! I had to use a lathe to center my pulley on the clutch drum. This chain made me crazy! I finally used a belt as primary transmission. This system was a complete nightmare! Chains are complicated things, but bicycle chains are just not made to go fast and to handle this kind of power! I broke about 4 chains, nearly destroyed the sprockets, and the chain was going so damn fast that it was getting really hot (above 100☌!). I used the pedals bearing of a bike as a jackshaft, the pedals sprocket as a part of the primary transmission, and welded a bicycle sprocket on the chain saw clutch. To give you an idea, the bike was built in about 30 days of work, and I had a rolling chassis the 4th day, and the transmission took more than 20 days to finally work well! This was a really hard part of the mini chopper build. The transmission was, in my case an enormous source of problems! Here in France horizontal shaft briggs are really hard to come by and the karting clutches, chains and sprockets are both expensive and nearly impossible to find! So I had to build my own system. I used some motorcycle parts such as the tank from a Yamaha 125cc, a 600cc muffler and some Harley Davidson foot pegs! The frame is built with 20 mm square tube and there are no bends (only welds). The fork bearing comes from a bicycle, as well as the front brakes, the bars, and the lights. ![]() The rear wheel come from a Chinese pocket bike, the front one comes from a 16" bike. Because of my short budget I had to use used and cheap mini chopper parts.įor the engine I had a 1962 Dolmar CC chain saw (80cc and 5HP). My budget was less than 500€ and I wanted to have enough power, a great look, and real comfort. I built this chopper with one goal: If I put it next to any Japanese bike, people will forget about the big bike and look at the mini one! And it worked! It's a real honor to be next to high quality (and real size) choppers! Keep in mind that all measurement are in metric units you can convert them to inches using this tool. Here I will give you specs on it, and I will try to give some advice and tips in as well. ![]() Hi! Here is the description of my mini chopper: the Poupoudoum (that's my nickname).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |