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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #11  
Old 09-15-2016, 03:45 AM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

will do, Ill get the table, errm engine soon, then pray for the frame, need 4 mounths to before i get started, I just hope it all fits, I cant waight to end up in traction
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  #12  
Old 09-15-2016, 05:42 AM
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Tony01 Tony01 is offline
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Default Re: Predator 670cc V Twin bike

If you're even thinking bout that I suggest you build up a 212cc motorized bike. The engine cost will be the smallest expense. A 212cc can be made to make 20hp and if you blow it up a replacement is $125 at the most. You'll find yourself spending the most money on good wheels and brakes. But if you're looking at a 600cc I would just go get a motorcycle. Buy something that's already proven and build on that; it's a heck of a lot safer and easier, and less time consuming than trying to reinvent the wheel. Or... Honda shadow 750-- v twin cruisers that can be had for 2 grand or less...

Personally I am salivating over dr650s myself...
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  #13  
Old 09-15-2016, 06:26 AM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

thats nice, but for 6oo and chang I get a engen and for 400 I get a frame, at my buget that is more then a nuff. dont have a nuf for any more, and if i were to down grade it would be to the 420 or 310, though 420 more likly cents i want speed
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  #14  
Old 09-15-2016, 06:27 AM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

though that is a lot of horses for such a small thing.
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  #15  
Old 09-15-2016, 10:03 AM
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WECSOG WECSOG is offline
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Default Re: Predator 670cc V Twin bike

For some of us it's largely about building something; maybe something a little off the beaten path. Those who aren't like that just don't get it, but that's ok too.
The first time I ever saw one of those Chinese V-twins ( a few years before Harbor Freight had them), I envisioned one in a minibike.
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  #16  
Old 09-15-2016, 11:04 AM
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Default Re: Predator 670cc V Twin bike

Oh yah, traction it is!

Good luck, but for the budget you describe, you could have aE helluva nice MB. One that isn't a death wish.
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  #17  
Old 09-15-2016, 11:16 AM
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WECSOG WECSOG is offline
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Default Re: Predator 670cc V Twin bike

That bike's not a death wish. In fact, since we're talking about a frame that is actually designed to accept an engine, it is probably safer than a typical motorized bicycle. Especially one with a 212 engine, as some have built (and I am considering).
And it's no more difficult to put good brakes on a minibike than on a MB.
I do think the OP would do well to consider spending a bit more for the extra large frame. It would make it an easier build.
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  #18  
Old 09-15-2016, 03:22 PM
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Default Re: Predator 670cc V Twin bike

Just keep in mind that wheels and brakes will be your other big expense. This stuff runs relatively cheap for bicycles, because none of it has to be approved. Hope you can build it on the cheap but expect to spend double what you payed for the frame and motor on all the other stuff, which does add up quick.

I've thought about such a project but figured it would be easier to buy somebody's vtwin motorcycle project instead..
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  #19  
Old 09-15-2016, 07:06 PM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

Quote:
Originally Posted by WECSOG View Post
That bike's not a death wish. In fact, since we're talking about a frame that is actually designed to accept an engine, it is probably safer than a typical motorized bicycle. Especially one with a 212 engine, as some have built (and I am considering).
And it's no more difficult to put good brakes on a minibike than on a MB.
I do think the OP would do well to consider spending a bit more for the extra large frame. It would make it an easier build.
thank you, some advice I can use, though you guys in general have been a help.



so the v twin or the 420, I want at least 80, will eather of these meat that goal? I want to be able to use this as a very cheap alt to a motorcycle, but still need some speed, 80 is my goal, if I can pass it, would be cool but I only freeway speed.
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  #20  
Old 09-16-2016, 12:14 AM
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WECSOG WECSOG is offline
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Default Re: Predator 670cc V Twin bike

Will it do it? Probably, if you gear it right. I strongly suggest you not try it though, with no suspension. Chances are very great that it will bounce out of control at that speed.
Here you go. This bike is a much better bet, and cheaper too.
I can get behind the idea of putting a V-twin in a large minibike frame for the fun of it. But if you really expect us to tell you it is ok to build such a machine and then take it out and do 80 mph on the highways, you are either insane or a jerk cop on a fishing expedition. You won't get anyone's blessing on here to do that.
In fact, I'm really beginning to suspect the latter is exactly what you are. It's just like on the gun forums when some newbie comes in and starts demanding information on how to convert something to full-auto, and trying to get someone to agree that it's a good thing to do: it's a dead giveaway that the newbie is a meathead JBT who thinks everyone is as stupid as he is.
So if that's you, go tell the chief it didn't work.
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