my winter project

[bige]

well we have the 300cc atv disassembled,  I am now looking for a frame or plans to put this stuff in.

any suggestions on frame types?

[VLADD]

Single, or 2 seater?
woods or sand?
questions...questions???

[RC51 Rhino]

 I kinda like this one on ebay motors. Item #140271306593
I know it doesn't have dual a-arms but looks pretty good otherwise.

[SPEC]

Is that the Bandit plans?
If it is I know the guy who sells those plans from another site...
I wouldn't go near that with a 10 foot pole...
Altho it's a simple design prolly would be easy to build...you would have to re-engineer many things if you wanted it to last...or handle worth a shit
But that's just me...

[bige]

I will be doing mainly trail riding, hare scramble races, just alot of wood type riding.

I looked at those plans,  the donor atv has a seperate forward and reverse gear box, and I would like to use irs rear suspention. 

A single seater would get exciting thru the woods with that engine

[fisherman]

Spec, what would you do to improve that buggy?

[SPEC]

I'd start off by having dual A-rms, not singles in the front, and rear...I'm not a fan of IRS so I'd prolly swing arm it, altho- I do have spme trailing arms on my last 750 So I could go indy out back...
Front and rear shock mounts are not re-inforced...much jumping or hard driving will fatigue the tubes that they are attached to, there will be a failure there...
The front hubs are northern hyd. trailer, with the snout ...they are durable but heavy as hell...Plus the spindle itself is not the best design for optimum steering geometry, I have found in the woods that keeping most of the spindle as  close to the center of the contact patch of the tire to be extremely helpful in keeping the steering light an predictable, That design...the tire rolls around an axis instead of just turning...
Moving to the rear, I have said before I'm a swing arm guy...Alittle tube rerouting, would ease the motor and cassett installation, The way it sits in the photo here you would certainly have some serious plunge in your axles...ANY IRS GUYS CAN JUMP IN AND CORRECT ME IF I'M WRONG!!!!
I'd prolly add some triangulation bars in the middle of the cage for structural integrity too
But then again these are my idea of good woods cars

[bige]

since I have the swing arm and shock I thought about useing it.  I have seen that set up used on a buggy called side winder

[borris]

I like the idea of swingarm rear. The front though is horrible with single a arm.Horrible camber changes and such.That's a strut front suspension and is fine for very limited travel but IMO not good when wishing for several inches of travel.

[SPEC]

Quick vid

[Admin]

I would buy the edge piranha plans myself, If you don't care about huge travel numbers etc, there has been cars that handled well with single a arms...

[Wyattboche]

[borris]

I bow to you guys wisdom but I still hate the idea of single a arms.

[Wyattboche]

Its not as bad as you think. I bought Doug Heims Piranha and I do alot of trail riding in the northern Wisconsin trails.

[fabr]

  he still hates them. Honestly I think they likely perform plenty well but I think you'd agree that if best is what you're after then a well designed doulbe a arm will outperform a single a arm setup.