Monster Moon Caps
 

Saw these on a truck I was following on my way in to work this morning.

http://ecomodder.com/forum/attachmen...1&d=1260376680

http://ecomodder.com/forum/attachmen...1&d=1260376680

I didn't see any other modifications to the trailer or cab and I wonder what kind of results this nets.

It also makes me want to get a set for my car...

Those look sweet.

I'll take 12!

Nice !

i_am_socket -

Those look similar to an Ecomodder who's a trucker for a living. The outfit he works for bought them. But I think his version had 4 holes around the center cap to get at the bolts.

EDIT: I take that back, I see the 4 center holes. They're just blurry.

CarloSW2

Haha, I like it!

super-singles or duals?
 

Can anyone tell what style of wheel/tire? Super-singles or duals?
The big fatty's save fuel even without the MOONs.
I've no data for the single wheelcover mod without other mods to a truck,so I'm worthless to you there.I certainly like the spirit of the gesture,whatever the outcome.

FWIW, "MOONEYES," the originator of the Moon hubcap, sells stock
sizes from 10 in. to 19-13/16 in. diameter. :thumbup:

Of note is they can do special order sizes up to 46 in. :eek:

MOON Disc (Screw on) from 10" to 46"DIA on Mooneyes Online Store

...they ALSO sell ones that have "edge" fingers to clip onto the rim, instead of having to be "screwed/fastened" onto the rim...but, neither have access holes for valve-stems so you can check/fill air pressure (darn!).

Drill your own valve hole

...and line it with a neoprene grommet to protect/center the valve-stem.

Phil -
That's often the first thing I check for when looking at semi trucks... Unfortunately, the pics are bad enough (no offense to anyone) that I can't find any of the tell-tale indications, such as shadow or ridges in the "blob" of tire, that would indicate a dual setup.

I'm going to assume they're super wide, but only because it seems logical.

spartan shields!

Yeah, the pic was a bit blurry and all the rain/fog on my window didn't help much. I'll see what I can do with the originals (they're 2048x1536, so a little big for posting directly and my ftp is giving me issues)

http://ecomodder.com/forum/attachmen...1&d=1260455153

http://ecomodder.com/forum/attachmen...1&d=1260455153


Here's some slightly less shrunken shots, brightness/contrast adjusted. Looks like single tires instead of the doubles to me.

does this actually help a semi's mpg? it seems a little like spitting into the ocean.....

There are proven economy increases and traction benefits for large trucks running those tires. They're also slightly more environmentally friendly, since there's only one tire being made, and it uses less rubber.

There's also more surface area on the traction print to spread a load, so they aren't stressed as much.

Socket -

Yeah, they're single fatties. Thanks for the new pics!

The super singles have less rolling resistance than doubles since there's less rubber to flex overall. Despite the relatively bad aerodynamics of semis, even at highway speeds, depending on the load, rolling resistance is still very significant due to the number of tires and the overall load.

Boat tails would be the best though.

Real Wheels aero caps fer big rigs...
Fuel-Saving Aero Series Covers | RWC