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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #21  
Old 09-16-2016, 01:45 AM
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culvercityclassic culvercityclassic is offline
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Default Re: Predator 670cc V Twin bike

Called out!!!! Thank you WECSOG
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  #22  
Old 09-16-2016, 09:35 AM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

ignoring most of you rant, yes adrenaline is life, next on the list is suspension, cant you add it the bad dog frame? why not just say I need to figure suspension to the list of things it will need?

any other safety thing I over looked?
so for 80 is the 670 over kill? will the 420 do this? if so how to get the 420 up there?

Last edited by ickda; 09-16-2016 at 09:38 AM.
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  #23  
Old 09-16-2016, 11:06 AM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

http://www.ebay.com/itm/Motorcycle-V...hWjHlL&vxp=mtr
If suspension is a must, I can just save a lot of money and but something like this. hehe 700 dollars for a bike, 80 is all I need, so you think the v twin can surpass or meat that?
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  #24  
Old 09-16-2016, 11:37 AM
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WECSOG WECSOG is offline
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Default Re: Predator 670cc V Twin bike

Now you're talking. That is a Honda XL70 frame. The swingarm, forks, and wheels from an XR125 will bolt right up, if you want full size wheels. The frame will handle 80 mph. It will not accept the HF V-twin engine, but a much better engine will bolt right in: a Piranha 140. The 140 is designed for motorcycles, has a built in clutch and transmission, and has enough power to both accelerate well and maintain highway speeds. It is also quite a bit cheaper than the Predator V-twin: a little over $400 including shipping.
The XL70 is street legal, and the seller of that frame is offering a bill of sale. So if you ever decide to register it, you could do so. If your home state is too stringent, Vermont would be happy to register it and send you a tag. No title necessary because Vermont doesn't require a title for motorcycles under 300cc or over 15 years old. This frame qualifies on both counts.
How do I know so much about this bike? Because I built one, and ride it regularly:



You could also build it as a chopper, as in this picture. This one is an SL70, which is pretty much the same bike with a different name.
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  #25  
Old 09-16-2016, 11:51 AM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

So many options, but you do talk a lot of cents, dont plan on even getting a divers license, registering it would be a issue.
also for legal issue of driving even a car like that, is technically legal, freedom of travel, forgot the amendment but it is in the constitution.
though I feel like the more cycle this turns into the more I find that this fourm is ill suited, though with people like you I might not be that lost.
fits better in the budget also.


so many choices.......

also I do recommend and encorege most people to not bother with a license, on my family name, Felix~
also no it dose not lower diver accidents, just look at 1st time drive enssurence and accidents rates....
to much politics, more bikes..... dools
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  #26  
Old 09-16-2016, 11:53 AM
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WECSOG WECSOG is offline
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Default Re: Predator 670cc V Twin bike

I already know all that. I thought you weren't gonna turn this into politics?
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  #27  
Old 09-16-2016, 11:56 AM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

I wasent, the internet makes me go over kill on defence, meh

can that engen you recommended really go as fast as I needed, it seems much lower cc's then the engens I was looking at...
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  #28  
Old 09-16-2016, 12:10 PM
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WECSOG WECSOG is offline
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Default Re: Predator 670cc V Twin bike

Lower cc, but double the rpm. That V-twin is an industrial engine, not a motorcycle engine. It doesn't have a transmission, and you can't afford the Harley big twin transmission that you might be able to cobble up to work with it. About the only other option would be a CVT, which is about $300 in a size that will work with that engine. And a CVT wastes a lot of power.
The Piranha 140 makes about 12 hp, but it is much lighter and has a manual clutch and 4 speed transmission built in. I don't even have the 140; mine is a 125 with the small valve head (the 140 has a big valve head). My 125 only does about 8 hp, and I have it geared low for offroad use. But it will still do 55 mph on the highway. So yeah, a 140 with a sprocket chosen for road use will definitely do highway speeds.
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  #29  
Old 09-16-2016, 12:22 PM
ickda ickda is offline
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Default Re: Predator 670cc V Twin bike

so what other parts besides the frame would you recommend for such a build?
this is starting to look more and more fesable then I intaly thought.
I pretty sure with a wrench and few weeks of tears and blood that I could cobble it together, I just dont know the parts needed to bring such a thing to life.
If I new what I needed that would go a long ways, maybe a few videos to help me along
hmm this discussion is going to inspire a few YouTube searches to say the least.
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  #30  
Old 09-16-2016, 01:35 PM
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WECSOG WECSOG is offline
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Default Re: Predator 670cc V Twin bike

Get the frame and engine, and I'll be happy to help you find the other stuff to fit it. Basically you will need wheels with brakes and axles, swingarm with bearings and bolt, forks with triple tree and a handlebar. And a gas tank. You can get a new plastic tank intended for a KTM 50 for about $35.
All the used parts I just listed are very readily available, so you don't have to buy everything at once.
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