Miles Travel?

Discussion in 'General Questions' started by SlicerDicer, May 7, 2007.

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  1. SlicerDicer

    SlicerDicer Guest

    I am curious I live out in the middle of nowhere in Rio Rancho... well I have really in all directions to get anywhere about 5-9 miles one way or more.. How do they do duration wise? The ambient temps outside are nowhere near as hot as AZ like spookytooth has to deal with.

    So how good are they at going distances such as that?

    The Chinese 80cc motor that is.

  2. gone_fishin

    gone_fishin Guest

    providing you treat her more like a light aircraft than a bicycle (preventive maintainence and pre-"flight" checks) you're gonna have no problem (with the engine) on 10-20 mile hops :)
  3. rcjunkie

    rcjunkie Guest

    I done 4 hours on one of these engines with no problem only stopping once to top off with fuel at a local gas station. Biggest problem with these engine is that they tend to shake everything apart. Today I went for a quick ride and lost a rear brake pad because it vibrated loose. I am now putting loctite on EVERYTHING including my pedals.
  4. azbill

    azbill Active Member

  5. Guest

    Guest Guest

    50 miles round trip with no problems.
    200+ miles since new, no problems.
    Loctite EVERYTHING when you build it.
  6. Hugemoth

    Hugemoth Guest

    I do a daily 28 mile commute on mine. No problems except for broken spokes. Fixed that with 12 gage spokes.

  7. spunout

    spunout Member


    i travel everyday on mine 9miles each way. overheating never the problem...always vibration :???:
  8. SlicerDicer

    SlicerDicer Guest

    I have a idea for the vibration. I will test it and let know how it works. I think it should eliminate all vibration from the bicycle itself however the engine is free to rattle all it wishes too. But then again it will also dampen the effects on the engine as well by absorbing it.

    Will see how it works out if it does well I will be sure to let know about it.
  9. Hugemoth

    Hugemoth Guest

    The first bike I put an engine on was a large frame mountain bike. The vibration was terrible. The next ones were smaller framed cruiser bikes, the vibration was much less. I suppose it has to do with the frame geometry.

  10. rcjunkie

    rcjunkie Guest

    I am fairly sure you are 100% right! I have a Huffy framed bike (20 inch) that vibrates all day long. After 3 different engines on it, I have concluded that it is the frame and not the bike. I have another frame (diamondback) that rides like a cadillac....very smooth and not a hint of vibration in the handle bars.
  11. locoWelder

    locoWelder Guest

    yea but chics dig my 2 stoke viberator :evil:
  12. I put 10+ miles a day on mine when the weather's good enough. One day I went 52 miles, yesterday went 40 miles with lots of stop-and-go.

    These engines aren't balanced and produce different harmonic frequencies depending on the RPM and engine mounting. I get a bit of vibration from 27-28MPH and from 34-35MPH. Other than those speeds, mine's pretty smooth from 12MPH on up.
  13. mikesbike

    mikesbike Guest

    I put 800 miles last summer on mine back and forth to work. About 8 miles each way. Its up hill most of the way there. I did suffer a two broken spokes. (12gage) and the frame finally cracked and I had to build a new bike. Its a real 1950's Schwinn cruser that I built from salvaged parts. My bike has always vibrated something awful! I don't use chain guards any more. They are really noisy. (vibration) I also have gone through several chains. I am constanly messing with the carb? It does not run constantly from week to week but always gets me there an back. Its a cheap and fun ride and worth the constant maintainace it requires. Some day I'm sure I'll find the sweet spot. I'm an addict.
  14. JosephGarcia

    JosephGarcia Guest

    I agree, I had this theory awhile ago but couldn't put it to words like you. I also suspect vibration is different for each frame type because of the material used in making the frame determines the frequencies it best reacts to. Mine is also smooth at most speeds and hits vibration at certain speeds.

    BTW, does anyone else hear a whistling sound from the engine that increases in pitch at high speeds? Either from the wind through the fins on the head, or somewhere in the exhaust. When I hear it get higher, I fear the engine is going to explode, and slow down. I just want to know if this is normal because it really freaks me out.
  15. From my experience, an engine that "whistles" or "chirps" is doing so because of a compression leak due to loose head nuts, unsealed head nuts, damaged head or damaged head gasket. You may have an intake or exhaust leak, too.

    My first engine arrived with a damaged head and it whistled and chirped after 100 miles. After replacing the head and using automotive drain plug gaskets on the head nuts, it quieted down - until I fragged the crank bearings :lol:

    Occasionally, my Grubee GT5 will let out a chirp, but it's random, and I haven't used the drain plug gaskets on it's head yet.