110cc, 4 stroke, 4 speed pocketbike!!!

Originally Posted by fastlanepocketbikes

Hey everybody, I've been working on this pet project for a while now, and I wanted to show you guys how it's coming along...

The motor is a clone of a Honda 110cc, it has about 9hp and about 8ft/lbs torque. That second number should be alot more impressive than the first. It has 4 gears and neutral. It revs to about 8800 rpm's. Another nice thing about this motor is that it was desigend for street legal bikes. It is not unheard of to get over 70,000 km out of one of these suckers!!! So I figure that it'll be pretty reliable.

Alot of people asked me why I was putting this motor in a pocketbike, and not in an R1 or cateye garbage bike. Two reasons, first I think those bikes suck, second the chinese are already on it, we should see 4-stroke R1's in a few weeks.

First the good stuff: The bike is fast, it is insanely fast. It's pretty quiet although the muffler I have on it is for lawnmowers not motorcylces so I should be able to get it even quieter. Switching gears is easy, and it sounds crazy and looks crazy seeing a pocketbike go through gears to get up to speed. The suspension is wicked, it swallows up bumps no problem, my only complaint is that I used R1 forks and rear shock and they are so cheese quality.

Now for the bad. I made the bike sit too high in the rear end, and in turn the forks are at too steep of an angle. This has made the handling a little weird feeling. The air filter and manifold are too high on the motor, so I had to relocate the gas tank. Last but not least I made the gearing too tall. That means I rip trhough 1st, 2nd, and 3rd in seconds. 4th is the only real gear and it can pull away strong at about 5km/h. So I will definitely change the front sprocket.

So, how fast is this bike? I had a buddy clock me at about 85km/h. With the right gearing I should be able to hit 130 no problem. It is a scary beast. It lifts the front end on upshifts, it growls like a monster, it can ride up grass hills no problem. On the way to a buddy's house I raced a Honda Civic. I was on the sidewalk he gave it a little gas to test me, I nailed it and I pulled on him nicely! You shoulda seen the look on his face!!! The bike is a brute animal. I started getting a little overconfident and I was hitting some speed bumps, 3 in a row. On the fourth I went right over the handle bars and took a nice wipeout. Obviously I was more woried about the bike. It was fine and started right up. Lucky I wasn't going too fast.

I will get a Video uploaded soon, and get some verified top speed reports as soon as I get my new sprocket in.

Now for some pics...