Drago86
Well-Known Member
Crap, here we go… Not saying one is better or worse, but based on the little knowledge I have of mechanical stuff, putting a 20mm spacer on a wheel would have the same affect on the bearing as the same wheel/tire with a 20mm lower offset. A bearing mounted vertically with an upward load is impacted more negatively the further that load is from the vertical center line of the bearing. Taking it to the extreme just as an example, a wheel/tire with a 1 foot spacer would induce a lot more radial load on a bearing than without the spacer because the same upward force being applied is further away from the bearing (more “leverage” may be a better way to say it). The forces would be the same with that same wheel/tire with a negative 1 foot offset.
There is something to be said about the preference of correct offset wheels over spacers, especially bolt-on spacers. However, properly tightened A ‘normal’ size spacer isn’t going to be a problem. I look at it like stacked LEGOs. The less LEGOs you have in a stack of the same height is going to be more stable (less points that can flex). With a car and spacers you’re talking about a really short stack of LEGOs, so the instability is incredibly small…as long as everything’s tight.
I wholeheartedly agree that bearing quality/longevitry has decreased over time.
This is correct and a great way to explain it.
Also the Nismo is ~ 13mm lower offset stock so Nissan obviously thought at least 13mm wouldn't hurt.