Pusher Trailer Motor

Discussion in 'Electric Bicycles' started by Snax, May 3, 2008.

  1. Snax

    Snax Member

    I've been researching for some sort of e-bike conversion for the better part of a year now and I think I've finally decided that a pusher trailer makes the most sense. With that in mind, packaging is obviously less important than efficiency and power. Does anybody have any good cheap suggestions there for something that would push me to 30 mph and beyond? Perhaps a vendor with a good selection of various motor types and sizes?

    I'm thinking that 1kW motor would be adequate, but I don't mind going with brushed if the cost savings makes sense. If I do go brushed however, I want something with readily available and replaceable brushes, not some no-name import throw-away motor.

    Thanks!
     

  2. kerf

    kerf Guest

    I love your web site link, especially the Karl Marx section.
     
  3. Snax

    Snax Member

    Apparently Kerf is the only one that loves me.

    So, now that I've read a few more threads in the gasser's sections, tell my why I shouldn't just save a few hundred bucks and get a 49cc 2-stroke?

    $200 + $3/week in gas and oil is probably enough to get me to work and back at current prices. I'm thinking it would take years for the payback on electric to compete with that with similar power and nowhere near the range.
     
  4. graucho

    graucho Active Member

  5. Snax

    Snax Member

    ****, now I just can't make up my mind about any of this!

    Somebody just give me working motored bike! :p
     
  6. sparky

    sparky Active Member

    http://www.spookytoothcycles.com/
    http://www.whizzermotorbike.com/
    http://www.fiveflagsmotorbikes.com/

    There ya go. I was impatient like you and decided to buy the folding gas bike from fiveflags because it was only $500 shipped.

    I've had to replace just about everything on here, tho... tires, handle grips & throttle (now brake lever), seat. I'd even recommend the bike to other people with all these faults, but the kicker is the leaky plastic gas tank. It leaks from the threads because it doesn't really seal & gas spits outta the "vent" hole in the top of the cap. Luckily, my friend had a spare gas tank that fits perfectly from an unused scooter... but there prolly isn't anybody else who's gonna be as lucky as me.
     
  7. Snax

    Snax Member

    I'm really liking the Spookytooth Industrial. I don't mind having to do a few upgrades or minor replacements so much as just having something seperate from my regular bike.

    I guess this is turning into less of a thread about trailers, and more about me. Sorry! :p
     
  8. skyl4rk

    skyl4rk Guest

    Get a 4 cycle, the 2 cycles are not as reliable.
     
  9. Snax

    Snax Member

    I hadn't seen any 4-cycle frame-mount kits anywhere. I assumed they were simply too bulky and did not exist, but I've found the bicycle-engines.com 49cc kit now. I'd definately prefer a 4-stroke for multiple reasons.

    Thanks for the "Hey dummy, look over there" suggestion. :cool:
     
  10. kerf

    kerf Guest

    I'll probably start a fight with someone but the Staton and GEBE rack mounts are going to give the best performance, reliability and lowest maintenance of anything out there. They are not cheap but you get what you pay for, Honda, Mitsubishi, Robin and Tanaka are much higher quality than the Chinese engines. You'll be money ahead down the road.
     
  11. sparky

    sparky Active Member

    I got your back, Kerf!
     
  12. skyl4rk

    skyl4rk Guest

    Do a search on thatsdax.com Titan

    Or just look through the recent posts. I don't have one but its looking pretty good to me. I'm waiting on a frame mount version.
     
  13. Meer123

    Meer123 Member

    there are 2 cycle folks and then there are 4 cycle folks - clearly the 4 cycle has MANY advantages (notice that there are no 2 cycle automobiles in production today - there was in the past) but I for one do not disregard the price point of the two cycle or the fact that it can be pedal started. It may not have the absolute durability and smoothness of a 4 cycle but it is also simpler and cheaper to work on short of total seizure. Last but not least, they put out good power (perhaps not world class) for such a reasonable price. I am not siding for or against either choice - if I found a frame mounted 4 cycle motor that could be pedal started and had similar torque (and price) as the common 2 stroke - I'm buying it !
     
  14. Snax

    Snax Member

    You make some good points. Pull starting is something I flat don't want to deal with.

    I think I need to just jump into a quality 2-stroke frame mount. Suggestions?
     
  15. kerf

    kerf Guest

    I would love to find a two stroke designed around a Zenoah 62 but to my knowledge none exist. In any event it would be very $$$$$$$$. That pretty much leaves the Chinese HT's, which at best, vary quite a bit in quality. I don't believe any would be in a class with a Mits or a Tanaka. That's the reason I'm running a rack mount, that and I like full suspension bikes.
     
  16. sparky

    sparky Active Member

    MMMmmmm... full suspension!! I wouldn't be able to live without it.
     
  17. Meer123

    Meer123 Member

    with regards to 2 strokes ... there's just the cheapo chinese stuff ... simple and cave-man like but it does make power crude and rude as it might seem. It will do so for a finite number of miles despite what they attempt to tell you - when it's time - it's time ... and you replace it - luckily, they cost half of what a 4 stroke costs ...
     
  18. Snax

    Snax Member

    So would 1000 miles be unrealistic to expect out of one?

    By my math, anything in excess of that is money saved vs. insuring and driving my car.
     
  19. Meer123

    Meer123 Member

    all the 2 strokes I've encountered are similar - but not the same - some have minor details that might give you a better experience later on. I didnt know about this underground cult (ie - motorized bike enthusiasts) so I started reading on this site AFTER I took delivery of my first kit - a 50cc two stroke from Ebay I got for about $175.00 deliverd. I've paid that much for beverages at happy hour (in my former life) and it seemed like a meager amount at the time (not free but still) and it's still with me today after over 1800 miles. It's not a spring daisy and the kill swith is not functional (I kill it by flooding with the choke or shutting fuel flow) but it will still do 30MPH when I'm feeling brave. I also have a 70CC - it's a tad stronger and combined with the right sprocket (I have a 50 tooth) moves all 250lbs of me very well - I have not been on a paved public road steep enough to stop it. I have heard many horror stories about these motors and I suspect many of them are true - I do not expect "forever" and this should keep my own disappointments to a minimum - I do not know if they'll do 3000 miles - some folks on these boards say they will go way beyond that but many die in their first 500 miles too ? Both of my kits are NOT SMOOTH - both are TOO LOUD (personal opinion) and both have smelly exhaust emissions - period. There's no way around these facts and you need to reconcile this with yourself before you buy. I am looking into an electric bike project because of these points - I still like my two strokes a lot and their power and range is nearly unbeatable if you work in the fact that they can be had for under $200.00 but I am not always in "Easy Rider" mode and on some occasions, quiet and smooth is nice. I know that most of the 4 strokes have similar power and superior smoothness (not to mention the fact that they can REV and I like that) but I WILL NOT PULL A ROPE ! If there was an affordable 4 stroke motor kit that could be pedal started - I'd probably own it by now. By the way - as similar as most 2 strokes are - there are differences - DAX's kit is apparently very nice and will serve willingly a bit longer then some other kits and his willingness to show an interest in offering a semblance of customer service makes him a little unique since most do not care enough. He's not the only vendor, not by a long shot - but his stuff isnt bad and he has a good reputation and if I buy another, he'd probably be near the top of my short list of folks I'd like to work with.
     
    Last edited: May 12, 2008
  20. HarryJames

    HarryJames New Member

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