Why 69cc?

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Simple answer Jaguar - Improved low rpm torque from the 69cc engine.

The 69cc engine allows you to use less rpm for the same road speed, which has many benefits: reduced vibration, reduced noise and reduced wear on the engine which just happens to increase engine life.

It doesn't matter what kind of methods are used to increase the torque of the 50cc engine because the same methods applied to a standard 69cc engine will enable greater torque at lower rpm.
 
I emailed the Texas DMV about the "catch 22" and here's their reply:

The website you referenced is not that of a state agency so accuracy can not be guaranteed. Our office handles motorcycle training and safety so I recommend you visit the DMV website directly for title and registration information. http://www.txdmv.gov


after I emailed them saying I couldnt find the info on their site they replied:

All 2 or 3 wheeled vehicles require a class M (motorcycle) license as well as insurance, title and registration; regardless if its considered a moped, scooter, motor driven cycle or motorcycle. The process is the same except for items inspected and registration cost.
 
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if i was in china, i could strap anything to some bamboo "hoops", pile the family on top and go touring with no troubles except the bamboo frame keeps needing to be tied back up every twenty km or so.

now, in autralia, NSW to be precise... there is no size limit anymore! at least last time i checked. the only restriction is on output power. 200 watts. restrict a chev down to 200 watts at the shaft and you could blat around on a v8 all day, and it would be perfectly legal...if not impossible :rolleyes:

there used to be a size restriction...30cc. there used to be a speed restriction... 30km/h max. the power restriction was still the same.


ill still stand by my "cus theyre available to be purchased and everyone has to compensate for other inadequacies" comment :)
 
thats why there are peddles

their is alot of grey area around motorized bicycles. alot of states allow the under 50cc rules and use bike paths as long as you have peddles.
The motor size looks like the larger one so some people lie to cops when pulled over say its only 49.6cc.
Colorado now requires mopeds to be registered regardless of motor size. they are trying to make bike owners d it as well but have not forced yet. but if we stay at 50cc we can park on sidewalk. over 500 not supposed to be able to.
 
I could use every bit of HP as possible due to my altitude where I'm down about 19% in HP (3% loss in HP/torque for every 1,000 foot in altitude). That's why I run a larger than legally allowed enigne.
 
I hear ya! when I was at 8500 ft my 48cc just wouldnt get all the job done. Had to go up to 55cc. but there is no legal limit here.
 
newlaws

I know this thread is old, but I just got here.......laws in Kansas recently changed// mopeds require drivers license, insurance, etc. just like motorcycle......no more D.U.I's and getting a moped. motorized bicycles---the engine limit was raised from 80cc to 130cc !!! think something about the miminum size tires was 14 inch, and 5break horsepower? I need to check cuz I got a ticket on my goped.......cop said it was a skateboard!
 
well goped is missing peddles so cant be categorized as a bicycle. I think I might have to check denver laws. would be crazy if they allowed 130cc hp motor on a bike.
 
well goped is missing peddles so cant be categorized as a bicycle. I think I might have to check denver laws. would be crazy if they allowed 130cc hp motor on a bike.

hey buddy.......................check the definitions while you'e there because pedals are not required, or even mentioned in the description of a bicycle..........motorized or otherwise.

s-1405. "Bicycle" defined. " Bicycle" means every device propelled by human power upon which any person may ride, having two (2) tandem wheels, either of which is more than fourteen (14) inches in diameter.

http://www.lenexa.com/LenexaCode/codetext.asp?section=003.008
 
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