whats 49cc engine like with hills

Discussion in 'General Questions' started by oldpot, Feb 9, 2013.

  1. oldpot

    oldpot Member

    when the time comes (looking for a bike first) i will be getting 1 of 2 kits first 49cc 2 stroke kit , or a 49cc 2 or 4 stroke friction kit ,(mi laws) i got 1 hill i will be going up a lot (takes me to my veg plot) and wonder if both the kits will take me up it (i am 220 pounds)the hill is about 100-150 foot long about 25-35% angle i just don't want to get off like i do now on my normal bike (as when i don't get off i feel like i am having a heart attack when i get to the top lol).
     

  2. geebt48cc

    geebt48cc Member

    Oldpot, there are main mods that you can do to the 49HT. All the kits come with 44T rear sprocket, you'll need to also order a larger rear sprocket than the 44t? Torque will be the name of the game!!!!!!!!!!!~

    Glen
     
  3. oldpot

    oldpot Member

    so what sprocket will be the best geebt , and how fast will a (say 49cc2 stroke) go and will the larger sprocket slow the overhaul speed of the 49cc ?? i think i read somewhere it might ?
     
  4. geebt48cc

    geebt48cc Member

  5. oldpot

    oldpot Member

    ty geebt
    you got link to them i cannot find any for him?
    now another problem i got i am still looking for a bike now i sent the good vibration on back (bad rims and tires) i wanting a cruiser but not sure what now ,i seen some old cruisers on Craigslist for about 80-120 good ones as well dont want a lot of work on them but you can get a new one for that price and no work there Ready to go ,
    are the old bikes better than the new ones. ???
     
  6. Samdallas214

    Samdallas214 Member

    If you are going with a friction drive kit stay away from bubble bee.
    He has to try way to hard with spam after spam and lie after lie to sell his kits.
    I have yet to hear of a happy bumblebee customer.
     
  7. oldpot

    oldpot Member

    ty sam i read a few post about the (spammers for that)
     
  8. Greg58

    Greg58 Member

    Old Pot I have two 48cc 2 strokes, one with a 41 tooth the other a 44. The 44 climbs better the 41 is easier on the engine. A 48 tooth would probably handle most normal hills, just don't over Rev it on the down slope.
     
  9. geebt48cc

    geebt48cc Member

    Yes, considering it's a fixed gear ratio down slopes can kill engine. So, what you need to do is find a comfortable spot, and stick with it. I know that's the advantage of the shift kit
     
  10. Anton

    Anton Administrator Staff Member

    I have not yet found a hill that I have to get of and walk on a 66cc with a 44tooth back sprocket. Of course on the really steep hills I have to give the engine some pedal assist but it's not like hard pedalling or anything.

    You should be able to tackle this hill with a 49cc and some pedal assist without having a heart attack!
     
  11. geebt48cc

    geebt48cc Member

    Anton, what are the hills like there? Have you done many mods to your 66cc? If you don't mind me asking................. the weight thing? Just curious, I've got mine just about taking them all, and it's hard around here to find a flat area!!!!!~

    Glen
     
  12. Anton

    Anton Administrator Staff Member

    I'm mainly talking about off road riding through undeveloped road reserves and state forests. It's kind of challenge thing; can I make it up that hill without having to get off and push! So far the answer is yes I can go up the steepest inclines I can find with pedal assist.

    If I stick to the developed roads I can get up most without having to pedal. I haven't done any engine mods and I weigh 65kg (143 lbs).
     
  13. geebt48cc

    geebt48cc Member

    Awww, nice carb! I can see why your bike does so well considering your size. That's about the perfect size to be when it comes to any type of riding. Gosh, I can imagine what it would do if you put and expansion pipe on?!!!!!!!~
     
  14. Saddletramp

    Saddletramp Member

    I am pleased to say since I don't build MB's for a living anymore I can say the truth. Buy a 66cc. Cops can't tell the difference. You are a big boy, I weigh 210. Peddle assist the bike it will do You & the bike a world of good. I peddle when cops are around anyway, they just shine me on. Old man on a bicycle is all they see.
     
  15. jaguar

    jaguar Well-Known Member

    First off, it's really hard to correctly estimate the angle of a hill. When I had a favorite hill for testing I thought it was 20 degrees but then I measured it to see that it was only 10 degrees. But still it was a lot for my 48cc engine. 10 degrees on up requires you to do these things for good climbing ability:
    1) increase cylinder compression
    2) extend the distance between the cylinder and the carburetor
    3) extend the exhaust pipe header length
    4) get a bigger rear sprocket
    If all that isn't enough then you can put a good carburetor on it and if that isn't enough then you have to put a 60cc top end on it since grunt is directly proportional to engine size.
    All the above tips are expained in detail on my site.
     
  16. Samdallas214

    Samdallas214 Member

    My 4 stroke CD kit pulls me 165 pounds and a trailer with 130 pounds of weight up a real steep grass 1/4 mile long hill with no problems.
    Don't know the angle but going down this same hill you can reach speed of 25MPH + with out a motor and without pedaling.

    I have even seen bicycles going faster then the cars on the road next to them and it 40MPH, again with out a engine or pedaling

    you go so fast I will not try to go down the hill pulling a loaded trailer , just gets to fast and real hard to stop.
    I take the 2 mile long way around.
     
  17. Fabian

    Fabian Well-Known Member

    Some say that it's not how big it is, but how you use it.

    Some also say that it's not how big your engine is but how it's geared. Even a 10cc engine will pull 500 lbs up a steep hill with the right gearing.
     
  18. geebt48cc

    geebt48cc Member

    I'm speaking without being a shift kit user, but Fabians right!!~It's all in the gearing....................
     
  19. oldpot

    oldpot Member

    again ty all for your input ,
    saddletramp i love a 66cc one but when i buy a kit i need invoice of kit and bike and other things to take to s.o.s when i register the bike , i dont mind pedaling if needs be better than feeling like my lungs are going to burst when i did try to ride it a few times heh.
     
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