need advice- our center bore is not 108mm

[djvx]

I think I am missing the point of this whole thread? Who cares if they are hub centric or lug centric? I beat the piss out of my truck with 108mm center bore wheels, never had a problem and I have some of the heaviest tires available. Lug centric is no problem. Never will be a problem. Superduty wheels are often lug centric as well. And if I am not mistaken, semi wheels are too.

I care

[tom4bren]

I care

Why?

There's been a lot of talk about the pro's & con's but you never stated what problem you are experiencing that started this whole discussion.

Or

Is "I care" just a Luke Skywalker quote.

[Y33TREKker]

I was going to add it in my earlier post, but it seemed the question had already been addressed. Like Ramair said, hubcentric rings don't really "support" any weight after a wheel is mounted and a vehicle is rolling. If I understand their usage correctly, they are only used to get a wheel centered on a hub before the lugnuts are tightened. The weight of the wheel/vehicle is then "supported" by the overall contact patch provided between the lugnuts and the lugnut seats of the wheels.

Hubcentric rings are used more for cars because it's more important to get that type of wheel/tire combo centered due to their performance requirements. A low-profile tire mounted on a sports car rim has a higher potential of being used at higher speeds, so the overall centering of the wheel/tire combo will make a bigger difference as far as high-speed vibrations are concerned.

When a person starts talking about truck usage, it's going to be almost impossible to get that type of wheel/tire combo balanced to the same degree because of the types and sizes of wheels and tires used (usually, smaller rims with larger diameter tires). High performance low-profile tires are actually balanced/shaved as part of the manufacturing process, but that's not really necessary for larger sized, and lugged, truck tires because they simply aren't designed to wear or be used in the same way. For that usage, hub-centric balancing would be overkill.

As far as using cone shaped pieces on balancing machines, they're used for a combination of reasons. As RamAir also said, one cone-shaped tool can be used for a variety of different centerbores sizes, and, using simple geometry, the cone shape also aids in centering the wheel/tire combo more precisely before balancing is attempted.

[djvx]

Why?

There's been a lot of talk about the pro's & con's but you never stated what problem you are experiencing that started this whole discussion.

Or

Is "I care" just a Luke Skywalker quote.

I wanted to verify our specific bore size so I could look for wheels that have the same OEM center bore.
Thanks again for the input everyone, but.....I might just get some wheel adapters.I hear there a nice safe alternative Uh oh...That could blow up this place