Back in February of 2018, I decided I was going to try and learn how to wheelie my Puch Maxi. I had seen some videos on youtube of kids riding wheelies on their mopeds so I knew it was possible. I practiced pretty much every single night and eventually got the hang of it. (Here is a thread with videos of me learning)
When I first started, I was riding an e50 maxi with a kstar 70 kit, 16sha and mlm people's pipe. Keep in mind, you can wheelie on just about any STOCK moped, it's all about the rider technique. So the 70 kstar setup worked well.
As I got better and better though, I started to out ride my bike. It was time to modify and keep pushing the envelope of what you can do on a moped! This thread is going to highlight some of the things I learned and what I did to the bike.
Headset Bearings: Ok so let's start with probably the first issue I ran into with wheelies... Head set bearings. All the slamming down from the wheelies really beats on your bearings and the bearing cups. I think I destroyed and replaced about 10 of the lower cups before I finally decided to do something about it. My solution was to replace the lower cup and bearing with a Tomos one (much beefier). For this to work you basically just need to shave down the OD of the cup sleeve that goes into the head tube. I also had to sand the paint off the fork tube for the lower race to fit on. The lock on the frame had to be ground off so the larger cup could fit. Other than than, they fit perfectly and have been standing up to some serious abuse!
Exhaust: The next issue I was having was scraping my pipe. As I got better, I learned to "drop back". It's basically when you go back beyond the balance point and use your rear brake to keep from falling backwards. Unfortunately most exhaust pipes for mopeds extend past the back wheel, which is no bueno. I decided to modify my MLM pipe and cut the baffle short. Why use the MLM pipe? Well, it gives me awesome flat power which is perfect for trying to control the bike on the back wheel. I have tried circuit pipes, simo, estroil all kinds of pipes and this people's pipe is the best imo. It still revs high and has a noticeable power band, but the low and mid is awesome.
Engine: As I said before, you don't need power to wheelie on a moped. Everyone wants to know what my setup is because they can't believe the bike can lift the front wheel. So here it is, nothing crazy, a lot of you are probably on more powerful bikes. It's a kickstart e50, unported polini 65, o-ring head, 16SHA, 96 main jet, 15mm MLM intake, hpi internal, Trickmetric Hammer clutch, and the MLM poeple's pipe. Gearing is 15x40. Top speed about 52 so just a hair over 10k rpm. This is a super snappy setup, very reliable and decent on gas. I can basically get vertical on the bike and the SHA doesn't starve for gas. I also keep the carb turned at a slight angle on the intake so I it can handle the wheelie angle better. No light coil on the HPI, so I used some super bright rechargeable LED lights.
Wheel bearings: No pictures here, but I originally learned how to wheelie on snowflake puch rims. I converted to sealed wheel bearings with the kit sold on treats. Well, they ended up wallowing out the saddles where the bearings press in. The bearings actually fell out when I serviced the wheel and there was noticeable wobble when you rode it. Bummer since those are 1 piece rims. I ended up getting sealed bearing 5 stars and have had no issues since, they seem much stronger.
Stunt Pegs: After riding with my buddy on a stunted out WR250R, I realized having some rear pegs to stand on during wheelies would be cool. All the street bike/super moto/grom dudes with hand brakes have them, so why not a moped! Here is what I came up with. I welded chrome plates on the original book rack. Then I welded studs through those plates. This let me use bolt on pegs that I had laying around. They are strong and also removable in case I ever want to take them off.
Throttle: Another thing I added was the quarter turn throttle. This one is Tomaselli brand. It makes throttle blips when you wheelie much easier. Paired with the little SHA and you basically have an on/off switch for a throttle. It's great.
........ ok that's it for now, I'll post more about this bike soon!!!!!!!