Too Much Engine?
- Thread starter Tyler6357
- Start date
rustycase
Gutter Rider
Ty, I'm proud to be a member of the 20mph Club! 
The 6.5hp 200cc motor you showed would possibly be great for a racer, but would generate a lot of legal issues once you tried to run it on the street.
As thegnu already said, there would be quite a bit more work involved, using that on a bicycle. and expense.
I think I would advise the 99cc predator engine, if you don't wish to join us in the frustration of a chinagirl kit.
At this point in time, with what we have to work with, commonly, that 99cc predator is about optimal for power, and you could stand on good ground as you presented your case before a municipal clerk, when you got into court.
Otherwise, you might as well build a motorcycle and register it as such.
Best
rc
The 6.5hp 200cc motor you showed would possibly be great for a racer, but would generate a lot of legal issues once you tried to run it on the street.
As thegnu already said, there would be quite a bit more work involved, using that on a bicycle. and expense.
I think I would advise the 99cc predator engine, if you don't wish to join us in the frustration of a chinagirl kit.
At this point in time, with what we have to work with, commonly, that 99cc predator is about optimal for power, and you could stand on good ground as you presented your case before a municipal clerk, when you got into court.
Otherwise, you might as well build a motorcycle and register it as such.
Best
rc
EZL
Well-Known Member
I've been running a Predator 212 for over 3-years and have not had problems with the cops in 2-towns. I would say it's because I don't
mess with showing the bike of since my engine is far from stock and to keep the noise down use a decent dirt bike muffler on it. While
in town, no horseplay and if in the country it can be turned loose up to 70+ mph. That's risking it since a bicycle frame and tires aren't
made to run motorcycle speeds. No rear suspension is dangerous on country roads so about 35 mph is about maximum to ride at on
that kind of bike. The full-suspension EMopeds are safe at 40 mph but then again, the tires are not made for that speed.
Sidewinder Jerry
Well-Known Member
Tom from Rubicon
Well-Known Member
Lighten up Jerry, you are not a Moderator.
Old threads are worth resurrecting.
Tom
Sidewinder Jerry
Well-Known Member
No I'm not a moderator but inactive old threads should be primarily for research. When a thread hasn't been active for many years there's a strong probability you won't get any response by posting on it. Should you wish to post on them, it ought to at the very least have an active member still on the forum. If the topic is truly of interest to you, it's better to start your own current thread on the subject rather than trying to resurrect an ancient one.
When I wish to talk with an inactive member who hasn't been on the forum for a long time; I PM them to see if they respond back. Many of us are up in our years; it's possible the long time inactive member may not even be alive anymore.
Last edited:
I have a few motorbikes from 3hp to 8hp and found if you build it right they will perform nicely. The main thing is safety. When you start using higher hp engines you need to add gussets at weak points in the frame, heavy duty tires like Maxxis Hookworms for example, strong front and rear brakes with heavy spokes and hubs, solid seat, front suspension forks, better levers than come with kits, good cables cut to the correct length routed well and clamped down to the frame, solid engine and fuel tank mounts, robust throttle return spring, high quality chains, etc. You basically turn it into a light weight motorcycle like they did over a hundred years ago. Luckily we have better roads, modern light weight engines and high quality components so we can go faster safer. It's like building a hot rod car. The more power, the better everything else needs to be. Some builds took me a year to make everything just right and a lot of the fun is in the R&D and making the bike one of a kind.
I agree with you Tom, I like it when someone posts on old threads, and really like when someone replys. Jerry ever thought about you may not get a reply because of your profectinist addatude? seems you got to be right about everything. You have a nice bike, but seems you whant everone else to copy you................Curt
Sidewinder Jerry
Well-Known Member
I don't expect anyone to copy me. Unless you have a decent machine shop or at least access to one, the Staton Inc triple chainring double freewheel shift kit hasn't been available to the public for over a decade. David is also shutting down his business that he's had for 42 years. So it would be ridiculous of me to think somebody except a skilled machinist could copy my bike. The reason I display my bike is so people will know why I'm an expert in doing gear ratio calculations.
This was simply advice. If a member hasn't been on the forum for years PM them first. If they respond GREAT; if they don't then you'll know you aren't going to get a reply in an old thread from them.
Some threads are very lengthy. Meaning you have to read through a lot just to catch up with it. The very old inactive threads often have no active members you can ask questions. By starting your own thread all responders will be available to you for questioning.
Here's a simple test so far 2 inactive members have been replied too (Let's see if either @wayne z LS 3 years ago or @Tyler6357 LS a year ago, replies back to @EZL or @msrfan). Odds are @Tyler6357 may be the only one to respond back.
A little research means you'll stand a good chance of being right about what you're talking about.
Last edited: