XD Spy wheels
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XD Spy wheels
I bought a set of MT ATZ mounted on 17'' XD spy wheels for my Ford f250 diesel. Drove to work this morning and back home and the truck was all over the road. I got out and found that both front wheels had no wheel weights at all on them. It looked like the brake caliber had peeled the wheel weights right off. They were the stick-on weights and they were on there when I put the tires and wheels on the truck. Anyone ever have this problem? Is the brake caliber too close for stick-on weights?
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From: Melbourne, Aus
Well, if you use external weights, you should be fine (or position your internal ones so they clear the caliper). But I know there isn't much clearance over 17" rims.
The XL models (and duallies) come with 17" wheels.
The XL models (and duallies) come with 17" wheels.
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From: Lakehills, TX
What year is your truck? Can you post a pic of the inside of the wheel as well as the gap between the caliper and the wheel?
What would bother me about that is that it sounds like the wheel is deflecting under load. Running no weights at all should only result in an unbalanced tire, not wandering all over the road. I'm assuming these wheels are lug centric, not hub centric? Their site XD Spy Wheels lists none of the relevant info like that, nor even the load rating of these wheels. I would not run them on a Super Duty.
What would bother me about that is that it sounds like the wheel is deflecting under load. Running no weights at all should only result in an unbalanced tire, not wandering all over the road. I'm assuming these wheels are lug centric, not hub centric? Their site XD Spy Wheels lists none of the relevant info like that, nor even the load rating of these wheels. I would not run them on a Super Duty.
Posting Guru
Joined: Sep 2009
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From: Lakehills, TX
No. Factory wheels are hub centric. Notice how the factory lug nuts are like little top-hats, simply pressing the wheel against the hub, rather than little cones seating deep into the wheel around the lug?
Here, watch this:
Here, watch this:
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Joined: Mar 2010
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From: Woodbridge, Ontario, CA
No. Factory wheels are hub centric. Notice how the factory lug nuts are like little top-hats, simply pressing the wheel against the hub, rather than little cones seating deep into the wheel around the lug?
Here, watch this:WHEELS AND SPACERS - YouTube
Here, watch this:WHEELS AND SPACERS - YouTube
As far as using wheel spacers are concerned, I personally consider it to be a BIG no-no. In some regions, using them will fail you on a safety inspection. I for one, would not put my signature on one. And here's why. By increasing the offset of the wheel, you place more stress on the axle’s studs, and in a front axle application on the unit bearings (or spindles) and ball joints of the axle. You also increase the tire scrub radius, changing the way the vehicle handles and increasing the difficulty of slow-speed turning. Also, by adding wheel spacers you are adding more components, and the more components, the more potential for failure.
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From: Lakehills, TX
We're not talking about wheel spacers, just some tangential education on what it means to be hub centric or lug centric. When a manufacturer hides their load ratings, that's a clue. Stay away.
That said, what exactly is the "axle stud" you reference? Do you mean a wheel studs, what the lug nuts bolt to? If so, that's not a major concern, since with proper wheels and spacers, they're not lug centric. The lug nuts are only holding the wheel/spacer against the mounting surface. The weight and force are being taken by the hub itself, which is why hub centric is a great thing for Super Duty trucks. It's true that the further outboard the centerline of the wheel, the more leverage there is to exert on hubs and steering components, but that's true of any oversized tire application. It doesn't really matter a whole lot whether that is achieved through lower backspacing on the wheel or with the shallow OEM wheels with spacers. I'll be honest, if I were forced to do one or the other, I'd much rather have hub centric wheels on hub centric spacers than some aftermarket lug-centric fashion wheel.
That said, what exactly is the "axle stud" you reference? Do you mean a wheel studs, what the lug nuts bolt to? If so, that's not a major concern, since with proper wheels and spacers, they're not lug centric. The lug nuts are only holding the wheel/spacer against the mounting surface. The weight and force are being taken by the hub itself, which is why hub centric is a great thing for Super Duty trucks. It's true that the further outboard the centerline of the wheel, the more leverage there is to exert on hubs and steering components, but that's true of any oversized tire application. It doesn't really matter a whole lot whether that is achieved through lower backspacing on the wheel or with the shallow OEM wheels with spacers. I'll be honest, if I were forced to do one or the other, I'd much rather have hub centric wheels on hub centric spacers than some aftermarket lug-centric fashion wheel.
FTE Leadership Emeritus
Joined: May 2004
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From: Melbourne, Aus
Sorry, I meant aftermarket wheels. Factory ones are hub centric - I have never seen aftermarket wheels that are hub centric.
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