How fast can your 80cc really go?

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chrisme

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May 30, 2009
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Maine
I can't... Even down hill, you would be running something like 20,000 RPMs unless you have gears, you'd blow up the engine.
 

Cabinfever1977

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Mar 23, 2009
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maybe he was going 68mph down a very steep hill with the clutch pulled in,but that would have nothing to do with how fast a bike with engine goes.

I can go 35mph down a flat road with a 48cc and 44t sprocket,but i dont need to go any faster than that.
 

Scotchmo

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Jun 23, 2009
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Los Osos, California
Raw 80 (66cc) motor, Schwinn Delmar, 44t sprocket, calibrated digital speedometer:

30 mph on flat, smooth roads
34.9 mph with a good tailwind/and or slight downhill
Cruises best at 25 mph.
 

bodydropped

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Jul 9, 2009
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atlanta
black stallion engine kit,ported head,notched piston,ported intake and exaust and a little tinkering with carb aswell as a nasty leak from the crank seal behind the magneto it looses so much pressure the engine stalls as soon as the clutch is disengaged, any ways 38.3 mph on a old heavy bike with me 205lbs and the current motor issues dnut
 

FileStyle

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May 27, 2008
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Decatur,IL
here is my main ride. "80"cc kings motor on GT Agrressor Triple Triangle frame. some mods on the carb and some exhaust porting, CE clutch actuator, performance pipe and running a 35t sprocket on wheel top speed has been 41mph; general cruising around town 30 mph all day!
 

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bodydropped

New Member
Jul 9, 2009
41
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atlanta
this is the max speed on my other bike the "reliable one"
no mods just playin with carb i actually swapped on the carb from my other bike
and the thing went 42.4 mph and climbing but i let off
i wounder why my other bike with all the mods is slower only 40mph and this one is basically stock and the same black stallion kit hmmm. dnut

EDIT ****changed fuel valve on the tank due to leakage and replaced plastic line with rubber and it eliminated foaming in the line and hit 45.2mph :D hehehehe
 
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Down_South

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Aug 28, 2008
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North Carolina
All stock parts on my bike engine I can go 27.3 MPH downhill and 20 MPH uphill. I weigh 255 lbs, so that should tell you how hardy the engine is especially if it can pull a fatso like me down the road! LOL :D
 

xlite

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Jun 18, 2009
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ny,ny
All stock parts on my bike engine I can go 27.3 MPH downhill and 20 MPH uphill. I weigh 255 lbs, so that should tell you how hardy the engine is especially if it can pull a fatso like me down the road! LOL :D
Refreshing to see someone tell the truth for a change. :)
 

Cabinfever1977

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Mar 23, 2009
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i have stock parts and i can go 25-30mph crusing on flat ground (and its not really reving very high either)and if i really pushed it i could hit 35mph.i have o vibrations since my engine is mounting with rubber and does not move and is mounted tight. i weigh 120lbs.

so thats the truth too, plus i have a 48cc engine.
 

Masterm222

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Feb 14, 2009
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Billings, Montana
I just fired my Stiletto.trk for the first time tonight. A little tweeking on the expansion pipe for pedal clearance and this thing should rock with the jackshaft and megarange deraileur!
 

xlite

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Jun 18, 2009
735
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ny,ny
i have stock parts and i can go 25-30mph crusing on flat ground (and its not really reving very high either)and if i really pushed it i could hit 35mph.i have o vibrations since my engine is mounting with rubber and does not move and is mounted tight. i weigh 120lbs.
so thats the truth too, plus i have a 48cc engine.
That's about what I've gotten out of the few dozen 50cc and 80cc over the years. I have to laugh at the guys getting 50mph with a 44t sprocket.

Ahhhh... 120lbs... Those were the days.... :)
 
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