StreetFighter crossed with StreetFox

[SSG 17E]

I saw a quad called the Mountian Quad
http://www.crank-it.com/quadhome.html

and had a thought...:rolleyes:

What if I were to build a StreetFighter mixed with the StreetFox so it would have the rear suspention and a short wheel base but still have 4 wheels.....:rolleyes:

Any Ideas on the subject?

[TheKid]

Wait 'til you see what the parts cost. Those rear suspension parts are probably over a grand. I think the front suspension alone was over $700. Theres another quad out there with the same idea, but without suspension. The name eludes me at the moment, but it will come back to me. It was discussed in the old forum. Wait, here it is:

http://www.pedalcoupe.com/

[SSG 17E]

The Mountian Quad is out of production at the moment. I would want to build for street use only like the StreetFighter. The thought of rear suspention like on the StreetFox would be nice though.
Maybe Brad will built something like this and call it the StreetFoxFighter.:D

[AtomicZombie]

When I contacted Crank-it about the quad a few years ago, the cost was almost 10K. Yes, that's ten thousand.

The new trike I am working on now is a more of a touring verison of the DeltaWolf. We are calling it DeltaRunner. It will have front suspension, and maybe something on the back - maybe if my tests work out.

Brad

[TheKid]

It's been out of production for at least 2 years. That's when I first saw it, and production already stopped. BTW Brad, I had front suspension on the Meridian, and even though there were some who said it was a waste on LWB's, it made a big difference in the ride. That's why I wanted it on the Hauler, but went with the 20" front wheel to make it shorter and have a smaller turning radius. Of course, that can always change. It's no big deal to switch forks.

[gbbwolf]

Saw a bicycle review couple weeks back of a new quad mountain bike.
Can't seem to find the link now.

Its made in france and the website was in french.

Oh well I will find it sooner or later.

[gbbwolf]

http://www.quadbikexcycles.com/http://forum.atomiczombie.com/attachment.php?attachmentid=172&stc=1&d=1216727120

[jimFPU]

I like this idea...hmmm we could call ours the Mountain Fighter!

[jimFPU]

Oh!! We could go the other way and put 8 or 12 inch wheels and call it the Indy Fighter!! LOL!


Man, I'm in the jovial mood today...4 hours of sick leave which turned into sleep was really good for me, just wish my neck didn't hurt!

[AtomicZombie]

Very cool. Mountain Fighter - I do like that name.

Brad

[jimFPU]

Or (also reference my tadpole thread) why could you not do something similar to this (http://images.google.com/imgres?imgurl=http://www.ambientinformatics.com/going_2004/img/vehicle-design_robb-bush_summer-1986_cutaway.jpg&imgrefurl=http://www.ambientinformatics.com/going_2004/&h=270&w=430&sz=44&hl=en&start=271&um=1&tbnid=hW4n4CyBb-7g4M:&tbnh=79&tbnw=126&prev=/images%3Fq%3Dsolar%2Bpowered%2Brecumbent%2Bdesign% 26start%3D260%26ndsp%3D20%26um%3D1%26hl%3Den%26rls %3Dcom.microsoft:*%26sa%3DN)? All the way at the bottom of the page. Insert most of the Street Fighter with one rear wheel...:confused:

[AtomicZombie]

That faired unit looks like a SlingShot trike with a body. Cool...


http://kb7mxu2.home.mindspring.com/images/slingshot.jpg

Brad

[jimFPU]

Exactly what I was looking for when I asked about transforming my Infinity to a tadpole!! Now I have some hacking work to do! Just picked up 3 forks, 4 frames, and a complete bike today!!

Also got a new complete Gibraltar drum stand that I will put my Roland V-drums on! They make great drums, just poor stands.

The greatest thing: ALL FREE!!! Just let people know what you like and they find stuff for you!!

[jimFPU]

OK, Brad how difficult would it be to mod a Street Fighter to this? Just a bit if extra hacking I suspect. Did you see this (http://www.flickr.com/photos/justinandcharmin/sets/72157594333112951/)?

[trikeman]

Anything can be done with some steel, a welder, and a grinder or two, but it really depends on what you mean by "mod." The whole frame design is completely different. Its sort of like asking how hard it would be to change a ford mustang into a camaro. It would be easier just to build the camaro in the first place. I do like the cool steering. As we discussed in another thread somewhere, the headset king pins on the StreetFox are superior to those bushing kingpins on that Slingshot, which is why most high end tadpole manufacturers have gone to them.

With a few sticks of EMT from the big box store, a few bolts and brass bushings for the king pins, and some nice Sturmey Archer front hubs, an internally geared rear hub, a bit of mesh for the seat and some grommets, you could probably build a pretty decent replica. I wonder why they made the front track so wide?

There was a Slingshot for sale last year on eBay that looked a lot like that one.

[jimFPU]

By 'mods' I mean making a replica with Zombie overtones I suppose. I'd like to use the way the Street Fighter is built, but like the title of the thread implies, a LWB tadpole design, and I prefer USS. I'll play around a bit with the idea...

I have a welder now, I could be dangerous.http://bestsmileys.com/zapped/3.gif

[trikeman]

By 'mods' I mean making a replica with Zombie overtones I suppose. I'd like to use the way the Street Fighter is built, but like the title of the thread implies, a LWB tadpole design, and I prefer USS. I'll play around a bit with the idea...

I have a welder now, I could be dangerous.http://bestsmileys.com/zapped/3.gif

Yep. The World is now your oyster, as they say. No more having to keep steel things in whatever shape the designer thought was appropriate. If you don't like it, just cut it up and weld it back together they way you do!

[TheKid]

I read about the Slingshot a long time ago. It was one of those trikes that some owners thought was the greatest thing since pantyhose, others thought the designer should have been executed.

[jimFPU]

It seems there is very little on the net about it. Maybe have to check the library.

[trikeman]

an interesting blurb on a slingshot that was for sale in 2007

http:http://www.recumbentriders.org/forums/showthread.php?t=792// (http://http//www.recumbentriders.org/forums/showthread.php?t=792//)

[AtomicZombie]

I looked at a Slingshot style design a while back and actually talked to an owner. The general feedback was that the Slingshot was way too wide, ultra flimsy, and not really good for much but track racing.

The thing that would still worry mye the most with wheels ahead of the cranks is how easy it would rollover. The Slingshot looks low enough to not have this problem, but look how wide they had to make it!

Brad

[jimFPU]

Yes, I'm finding more info on the Slingshot, and wondering how to make it better, 'cause I sure do like the look!

[jimFPU]

Trikeman, the link doesn't work...can you post what they said?

[SSG 17E]

I was hoping to dicuss the original post about a short wheel base quad...a mixture of the StreetFox and the StreetFighter not redicuss a long wheel base tadpole...(No tadpole... ):confused:

Should I take it that this is not of interest to anyone else?
I was interested in hearing what someone thought about the difference in handling of the short wheel base VS the long wheel base of the StreetFighter...would the rear suspention of the StreetFox cause strange side affects if it were four wheeled rather than 3. Sorry to pull the thread back, but it sounds like it is going onto a different subject totaly.

[TheKid]

Yeah, some of these threads have a tendency to get hijacked. Suspension on a quad is a complicated affair. Everything has to pivot just right to prevent brake and pedal steer. There's a lot of geometry involved. That said, if you think you can do it, go ahead, and keep us informed. What doesn't work is just as important as what does.
On another note, the shorter the wheelbase, the less comfortable the ride. I had a long wheelbase quad, and I built a modified Streetfox. Though the quad was a piece of junk built with PVC, when it was new, it had a more comfortable ride than the Streetfox.
For a tadpole, the Streetfox has a rather long wheelbase, and coupled with the rear suspension, it gives a smooth ride. That same wheelbase on a quad with suspension would presumably give the same results, if you could get the geometry correct. On both the Crank-it and the French quad shown earlier in this thread, you could see the complexity of the rear suspension. What you don't see are the angles at which the components are assembled, and therin lies the rub. The pivoting parts should be designed so the wheel travels as straight up and down as possible, and the frame joints must be able to take the strain of any twisting.
If you search the threads, you'll find discussions of rear suspension for deltas and quads. I believe you'll find one thread that discussed basically building 2 Streetfox rear ends for rear suspension.

[jimFPU]

Sorry, I'll keep that in mind next time...

[SSG 17E]

Brad, What do you think about the StreetFighter with the front axle in the position of the StreetFox. Or the StreetFox with the rear axle of the StreetFighter. I am trying to get an idea of what the short wheel base would be like. This time I will not mention suspention.:confused:

[AtomicZombie]

It would look a lot like this...

http://hkdigit.blogspot.com/2007/01/round-table-pedal-2007-21st-24-hour.html

One concern with a short frame would be wheel lift on uneven ground.

Brad


Brad, What do you think about the StreetFighter with the front axle in the position of the StreetFox. Or the StreetFox with the rear axle of the StreetFighter. I am trying to get an idea of what the short wheel base would be like. This time I will not mention suspention.:confused:

[TheKid]

The result would be a short wheelbase quad. A a little less smoother ride than the Streetfighter, probably even less smooth than the suspended Streetfox. Adding some sort of suspension or padding to the seat would take care of that, if it's an issue. (It may not be for you.)
The question is why you'd prefer the SWB quad. Any reason is legitimate. Maybe you think it's cooler looking, or you want to build it "because you can". Perhaps storage room is an issue, or maybe you get an uncomfortable feeling riding anything with a long wheelbase. You could build anything you want for whatever reason you choose.
Before I started building the Hauler, I was seriously thinking of modding my Streetfox into a swb quad. I didn't, because I want a trike for riding and a trike for hauling, and the fun factor of building two different vehicles.