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Motorized Tandems, Trikes and Recumbent Bicycles Trikes (tricycle) and recumbent bicycles can give the ultimate in comfort for cruising on long trips or just around town. Ad an engine and they will really turn some heads.

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  #1  
Old 12-19-2014, 07:00 PM
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livesteamfan livesteamfan is offline
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Default New Project

Well, I went to the Florida Flywheelers again and of course, I had the bug to build something when I got back. So I'm working on a trike this time. I took the 3HP Briggs from my bike and I mounted it on the back and I'm using a transmission from a self-propelled mower to help with gear reduction. It has a 5:1, I'm looking at I think 12:1 from it to the wheel, but I could be wrong; it's a 1.75" pulley to a 12" pulley. I don't have the big one yet, but I'll be getting it later and the nice thing is the wheel has four holes in the hub that I can bolt it to. For going from the engine to the transmission, I'm thinking just go with a belt drive of maybe 1:1 or 1:2 with a slip clutch, but I'm not too sure on it yet. I'm also thinking of using a pair of pillow block bearings to mount the transmission, but I'm having a problem finding any that are that small, so I'm not too sure what I'm going to do if I can't. I don't want this to go fast, I'm gonna use it whenever I go to a swap meet and tow a small trailer with a seat and a place to put anything I buy.
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Old 12-19-2014, 08:12 PM
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maniac57 maniac57 is offline
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Default Re: New Project

I'm looking at a Mohawk Industrial trike build with a Tecumseh hs and a belt drive, slipper setup.
Very interested in this thread! Keep up the pics and (my) problem solving!
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Old 12-19-2014, 08:29 PM
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livesteamfan livesteamfan is offline
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Default Re: New Project

Sounds like you're having as much fun as I am. I'll see what I can do, but between work and lack of budget, it may be awhile. It also doesn't help that back in July I moved into a third floor apartment. I'm doing the work out on the balcony and other than hand tools I all I have is a cordless drill, cordless sawzall, and a dremel. That metal plate is thin enough that I was able to bend it by hand, but it's strong enough to handle the load I'm putting on it. As far as the problem solving, I don't know if I can help you or myself there, but I'll see what I can do.
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Old 12-19-2014, 08:34 PM
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Default Re: New Project

If you're at 5:1 and the run off at 12:1 you're at 60:1....however I think your pulleys are closer to 6.7:1...still leaving you with a wall crawler at 34:1.
Maybe the actual on the pulleys isn't so cut and dry but maybe.
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Old 12-19-2014, 08:42 PM
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Default Re: New Project

I'm always interested to see a trike build
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Old 12-19-2014, 08:53 PM
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Default Re: New Project

Quote:
Originally Posted by racie35 View Post
If you're at 5:1 and the run off at 12:1 you're at 60:1....however I think your pulleys are closer to 6.7:1...still leaving you with a wall crawler at 34:1.
Maybe the actual on the pulleys isn't so cut and dry but maybe.
I really don't know but I won't find out unless I try it. To me, the thing isn't too stable, but that's just because I've honestly never ridden a trike, so it's weird to not lean into a turn. I want a speed of about 10 MPH at a decent engine speed of maybe 2K. I don't want it idling, but I don't want it wound out all the way, just where it sounds like it's nice and happy. I was talking with a friend of mine and he wanted me to leave it at the 5:1, but I don't want to be doing 20 on this thing let alone 80. My bike would get up to 60 with a GX160 and roughly 8:1, and I can get the 3HP Briggs up to about 35, but that's on a bicycle where I feel safer at those speeds than on a trike. I would've liked to have gotten the transaxle from a riding mower, but that was out of budget and too much work to try and do where I am. Though if I can, I would like to do that because it'd be pretty simple I think and I would be able to use a dirt cheap vertical shaft engine, but I wouldn't be able to pedal it anymore.
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Old 12-19-2014, 08:59 PM
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Default Re: New Project

http://imageshack.com/a/img537/8789/ElcwfI.jpg

I'm working on one too..here's a link
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Old 12-19-2014, 09:01 PM
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racie35 racie35 is offline
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Default Re: New Project

https://imageshack.com/i/pc6H8COij
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Old 12-19-2014, 09:01 PM
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Default Re: New Project

Quote:
Originally Posted by racie35 View Post
http://imageshack.com/a/img537/8789/ElcwfI.jpg

I'm working on one too..here's a link
That trike of yours is just soooooooooooo cool racie
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Old 12-19-2014, 09:03 PM
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Default Re: New Project

Adult trikes are tippy...I copied the simplex truck and cheated on length and width...test runs push down a hill showed it was much more stable then I expected.
I'm looking to limit it to 30mph
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