Knobby Tires
 

Does anyone have a good source for knobby pneumatic tires and wheel asseblies they'd be willing to share? Thanks! J#

We won a truck pull using the 4" hubs and grippy pneumatic tires provided by Skyway Tuff Wheels. Here's a picture:





-Kevin

Thank you!

we also used skyway pneumatic wheels. They have INCREDIBLE traction on the mesh and HDPE, even with a simple drill tranny. On the mesh, I was pushing against the bot as hard as I could, and it didnt even know I was there. On the HDPE, again it pushed me off easily(I was not standing on the HDPE either) it has about 1000x the traction of the horrible stock wheels that came in the kit. I would definitely check them out. Here is a pic:

Can someone tell me really soon what the size of those tires are? Thanks.

the diameter of the wheel that we used, inclusing the hub is approximately 8"

Hmmmm, I wonder what those are wanted for :D

including or enclosing? I'm looking for the OD and the width of the tires. Thanks.

As I look in the skyway online catalog, I don't see the wheels that we sued anywhere. I can ask about what model # they were, and figure out the exact width/diameter tonight at our meeting. Skyway must have more wheels than the ones shown on the website. I would assume there is a printed catalog with these in it somewhere, although I havent ever had a need to use one.

Anyways, Ill see what I can find out tonight

P.S. I meant including:D thats what happens when ya dont use spellcheck

Cory

I found the specs for these wheels last night. They are 4" skyway pneumatic hubs.(Don't know the model #) along with 200x50 Cheng shin(chen shing?) pneumatic tires. If anyone needs more info, PM me.

Cory

Part Numbers .....
 

Here are some part numbers:

9" x 2" Pneumatic Universal with 5/8" x 3/16" Keyway - WHL428
9" x 2" Pneumatic Universal with 3/4" x 3/16" Keyway - WHL424
9" x 2" Pneumatic Universal with 1/2" Precision Bearing- WHL414

Call Skyway @ (800)332-3357 to confirm the above info before ordering. There are also 9" x 3" versions available.

9" x 2" keyway wheels are $18.31 each
9" x 3" bearing wheels are $17.40 each

Sanddrag,

I just looked at the tires and they're labeled "Promo Durotrap" the size is "3.00-4". They're 10" in diameter. They're a very sticky compound (less silica, more natural rubber). As I mentioned, we got them directly from Skyway with our 4" hubs.

-Kevin

How do they handle the ramp and HDPE?

Skyway has either discontinued the pneumatic wheel line, or they just took them off their website. Does anyone have a catalog in pdf form?

:rolleyes: As stated above:

I am having trouble finding the cheng shin tires that we used. Their website (http://www.chengshintires.com )is totally in chinese, which isnt helping any, and many of the links dont work. If anyone has a catalog, or has seen cheng shin tires anywhere, please let me know, as we need to buy some new ones this year. I am going to try and find where we bought these from, but so far ive been unsucessful.

Cory

Here are some pictures that Skyway sent me today of different tires they sell and are on the FIRST order form.

This is the 8" x 2" wheel with diamond grip:


This is the 9" x 2" wheel with lug grip:


This is the 12" wheel with knobby grip:


-Don

Thats it!!! the first pic you posted is the tire that we used. Did skyway send you a catalog? It would be great to get this info.

Cory

I went to their web site, then called them. They then faxed me the FIRST order form. However, I didn't really know what I wanted, so I called them back.

Then, the sales guy (I wish I could remember his name because the service was great) took some digital pictures and emailed them to me.

I then thought that others would want to see the pictures so I thought I would post them.

Don

Drawing of WHL428
 

An application engineer at Skyway sent me a drawing of their wheel WHL428. This is a 9" x 2" pneumatic tire on a 4" wheel, with a 5/8" ID hub and 3/16" keyway.

For other dimensions open the attached drawing (PDF format since the native .dwg file is 129k).

the wheels in the first picture
 

does anyone know where i could find more about the wheels in the first picture? i am looking for 10" wheels something like them thanks

Re: the wheels in the first picture
 

If you mean the team 589 'bot, they're 3" wide, 10" diameter pneumatic tires mounted on 4" skyway hubs. We purchased them directly from skyway for last years competition. With enough torque, they're great at peeling-up vast quantities of competition carpet and pulling the odd chevy pickup :).

-Kevin

Re: Re: the wheels in the first picture
 

We would have pulled that thing forever but the "driver" had the brake somewhat pressed. When the brake was released our robot almost got run over. There was like an inch before it would have hit. It would have done more damage to the truck than to the bot though. Ahh what memories....:)

We still have a bunch of students' cars and trucks to pull, but here in La Crescenta there's not a whole lot of flat ground.

How durable are the skyway wheels after some wear and tear on the wire mesh? We were thinking of using last year's vertical conveyor belts, but they really get chewed up on the ramp.

-Li-Anne

we havent driven them on the ramp enough to wear them down, but since we were using last years, they were worn down anyways.

Cory

Does anyone have the approximate weight of these tire assemblies? The 4" hubs and pneumatic grippy tires? Thanks,

6x2???
 

Anybody know of a plce to get good 6x2 tires, skyway has a prototype one, but its not what we're looking for....:confused:

Try places that sell wheelchairs and rascals.

RASCAL!!!!!!!!!!!!!