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Discussion in 'Motorized Bicycle General Discussion' started by Goat Herder, Oct 7, 2008.
That would probably involve a trail that runs to the edge of a cliff. Preferably with deep water at the bottom!
im 5'5" and 130, im thinking about going 60, and thanks for welcoming me
i know i was messin with you, but going fast is not a problem with me, im useto rideing my uncles drag bike 100+ and his street bike 75( ) but a bicycle whould be much. but take it in stride, your probly way better at this(thats not a joke).
Hmmmm.....sounds like an interesting goal....FWIW we can make sprockets as small as 18T for use with a disc hub mount.....Should make for some serious speed runs (slightly down hill will no doubt help)....
Fastest I could get mine with the 44 tooth was 28.2 on GPS It's all stock and untuned. I'm doing shift kit now and then will maybe start tuning. I was just hoping for 45... but 60?
I went stock on my Hayabusa to 187. After modding the engine it went 200.1 gps. I know I'll probably get speed hooked on this also.
You can go fast one one of these, just not for very long. Have fun, be safe.
ya, i dont think ill do this on a bike.
i dont think a china girl engine would even do 60mph.
but what about a pockit/pit bike engine, that might need less moding for the speed.
and put on a low-rider like in the motorbicycling.com banner up on top.
faster then 40 you would want to get as low and long as possible, Lessing your chance of wiping out. (aka hurt or dieing!! )
i think ill set my goal for 35-40mph, that shouldn’t be to bad, i dont have to be the fastest, but the funniest...well see
35-40 is easily obtainable with a little "work".
How about this: A Franco Morini Engine, Nuvinci Hub setup, and Tuned Pipes on a full-fairing recumbent velomobile? That would hit some speed dont ya think?
But seriously... a shifter kit with a NuVinci setup would be pretty quick.
ooo its do-able.
just got to put the money in it. i dont know about all of you but i dont have alot of that, thats why i got a china.lol
i hit 47 mph on my mountain bike with a ht motor and a shifter kit with 1 gear to go still. its pretty fast but totally doable
i was at bonneville in sept. bring your bikes next. lets just see the numbers in a measured mile.
I went 60 mph on a road bike with no motor just gravity, tall gears and a good tuck. That is why it is so much fun to climb steep mountain passes. Sooner or later you get to go down hill. You just better be a good mechanic so that 20 pound machine will hold together carrying 10 times it's weight.
have you tried on one of your bikes yet ??? and if so how fast do you have to pedal before you can even think of releasing the clutch????
No....Haven't tried the 18T personally but with all the talk of people looking for the fastest of the fast I thought I'd throw it out there.
I'm running a 36T still but on my next build I am going smaller (probably a 32T )...
Since 18T is half of 36T I'd imagine you'd probably have to get to about 15 mph or so before letting out the clutch.... I would imagine flat roads would be needed with such steep gearing but I could be wrong since quite a few folks in FL are running 27T on 26" wheels and are pretty happy (of course 18T is still pretty far from 27T)...Hmmmm....still looking for the first person to try it out! ;-)
Just did the shift kit and only went 27 mph yesterday after about 3 blocks in the wind. The engine still stock and don't make much power. I ordered the 11 tooth sprocket and will wait out this tank of fuel before tuning the engine.
I don't think even a lightly modified chinese engine will pull you to uber speeds with an 18T...more than likely it will just rev really slow @ 28 mph.
There is a certain point where, no matter what you do, 3 hp is not going to go any faster just by "gearing up".
Not trying to rain on your parade or anything....I just wanted you speed freaks to be aware that you WILL have to modify your engines as well as going to higher gearing.
Streamlining will help out considerably above 40 mph.