Extreme engineering question! RIDGID?

Eric, does that car also have a plumbing-pipe roll bar? If so I saw that at Bonneville last year. Scary. Cool, fun to look at, but scary.

Hank

 

You really dont want to do this(I know, your just "thinking" about it) My example is a bit extreme. But the only suspension in my "non suspended" car is the tires. Even a trip to the starting line is a bumpy deal. But at 255+ the car IS very smooth. Notice the rear "shocks" (tires)

 

car = 2000 lbs
bike = 500 lbs
TP

 

1. A motorcycle only has two ground contact points.

2. A motorcycle is controlled by leaning, not steering.

 

Wrong. You can lean left and right all you want, but if you aren't steering (or counter-steering if you really know what you are talking about) with the handle bars, you aren't turning.

 

One problem is the two rear tires never really have an even surface to ride on. If every road were gl***y smooth it would work, in a straight line, but when one wheel hits a bump, crack, pothole, etc. it sends road shock to both wheels...makes for squirrley handling.

Second, when cornering, one the inside wheel will "lift" off of the ground because there is no suspension.

Many year ago, 141 Speedway in Francis Creek, WI ran a "limited modified" pavement cl*** on a 1/4 mile track. NO REAR SUSPENSION ALLOWED...the idea was to limit the amount of HP that would hook-up to th track...no traction=no need for big $$$ motors.

These cars were pretty simple....stock front stubs, 100" WB, cast iron intake/exhaust. They weighed about 1300 lbs...BUT they had to put at least 500 lbs of lead over the L/R wheel to keep it on the ground in the corners....some cars had more like 800 lbs of ballast. So the 1300 lbs became 2000 lbs....

Most crashes occured when a car hit a bump and lost traction...it would put 'em in the wall or spin 'em out...fun to watch...not fun to drive.

 

Thanks, genius.

 

I have seen it done on a very light T-bucket modified, that was super low. It was only a car show cruiser, no highway or daily use, and it was rough, but probably not alot worse than some of the lowriders that I have seen, or my rigid chopper that I ride daily. The thing probably weighed 1500 lbs. I also seem to remember the guy saying he ran super low air pressure. I have no doubt that it will produce damage and cracks ect., but it seemed to serve the guys purpose and he was having a hell of alot of fun in it, and everyone was diggin it.

Take that for what you will.

 

Don't take my comments out of context, and don't make judgements about my riding experience.

You have no idea who I am, and if you did, you'd know better than to spew such ignorant comments.

 

It's even easier to find total idiots...

Try riding a bike around a corner WITHOUT leaning.... Bahahahahaha...

 

You are a *****...

This post was about building a rigid CAR...
The reasoning behind this was because you could do it fine on a bike...

THINK about it for a while...

Try TURNING a car with 2 wheels outback that are mounted rigid.

LEANING a bike at SPEED is a MAJOR part of the STEERING of a bike... Someone do the geometry... But I'd say it's something like 80% lean to 20% steer, if that...

That's oneof the MAJOR reasons RIGID works on a bike...
That and there's only one wheel to hop around.

And the sole REASON you COUNTER-STEER a bike at speed is to make it easier to LEAN over into the high-speed turn...

It's called GYROSCOPIC FORCE...

DUFUS...

 

Someone show me how to do that little middle finger icon so that I can re***ure #1 that he is in fact NUMBER 1...

 

Don't worry about it, Kilroy.

#1 knows nothing about motorcycles yet seems intent on displaying his lack of knowledge.

Note how he used my original comment out of context. I never said a motorcycle was steered SOLELY by leaning, yet he wants to twist my words into some ludicrous meaning so he can make a little joke.

I own four motorcycles, including a Russian military sidecar rig and long chopper, and am now down to seven scooters after selling some off. I ride daily, have done so for 13 years, and have a valid motorcycle license with Motorcycle Safety Foundation endor*****t. Saying that I know nothing about motorcycles is just stupid, and the guys I ride with know better.

If anyone wants to get a good demonstration on leaning vs. steering, he's free to take my sidecar out for a spin and then take the chopper out afterwards. The difference will be obvious, and if it isn't, he'll end up on the losing side of a telephone pole.