Fourty-four
Guest
K6UK said:
There are a lot of bad spacers out there - some just being a metal shim - but top quality spacers such as these - are in a different class.
-Mike
All spacers are just "metal shims"
The difference is that the wider spacers must bolt in place using the stock lugs (wheel bolts) because they are not long enough to go through the spacers and wheel, which renders them useless.
The small spacers do not have that problem, so they are usually fit over the stock lugs, between the rim and the hub. All spacers should be machined to tight tolerances, ensuring good runout. If not, you'd know right away by the wobbling.
The true problem with spacers is that they change the suspension geometry and chance the loads on the wheel bearings. Large spacers can also chance the handling characteristics, which may not be a good thing. Personally, I'd stay away from large spacers like those in the pictures.