just bought a new set of wheels a 16x7 Rota Grid - A B Green(4x100/e40/67.1)but my question is will i need a hub-centric ring to fit it in my FIT, i was reading something and come across that our hub bore size is at 56mm and i bought a rims that has a hub bore size of 67.1, do i need this ring to fit it properly??

and if so can you suggest what to buy??

THANKS! fellow fitfreaksters!

 

Just google or ebay search for "67.1 to 56.1 hub centric rings"

Hub rings are not *required* but are definitely a good idea. Without them, you are relying on the studs to center the wheels and support their weight, which they are not really designed to do. A lot of people don't run hubrings and never have problems. Some experience vibration at highway speed along with the occasional broken stud and worst, a wheel coming off at speed.

Hubrings are cheap insurance and make it easier to center the wheels when you are putting them on.

 

The folks that broke their studs and blaming the lack of hub rings are most likely not paying attention when they bolt on the wheels.

The rings do NOTHING after a wheel is mounted, because the studs are supposed to hold the wheel to the face of the hub. And the hub face is what is truly supporting the wheel (or to be precise, the car)... via friction.

The reason, in these cases, for the studs to break are because the nuts on the studs themselves weren't centered within the "hole" of the wheel.

As you tighten the nuts, you have to shake the wheel (in every direction), so that the wheel will move and let the nut push as evenly as possible on what little bit of metal it can. You have to do this gradually among the first two or three nuts (opposites, two if even, three for odd number of studs/lugs/bolts). After that, the rest will have naturally been centered.

Without doing that, you end up pushing too much onto one side and not enough on the opposite side of that hole, which will transfer onto the stud. Uneven pressure over time fatigues it and eventually causes it to break.

The only reason to use the rings is to make it easy on YOURSELF when mounting a wheel to the car. It's so the wheel is pretty much in place for you to put the nuts on, and you aren't using too much strength and effort just getting there. There is a potential for damage, resting the wheels directly on the studs when they aren't being held in with nuts... that is damage to the threads themselves. Even so, it takes a bit of impact force to do damage. If anything, you'd only really scratch a bit of the wheel that no one can see without taking the wheel off... of course, this is ignoring the fact that the pressure from the nut as you tighten is already creating scratches anyway.

Then again, even without rings, it's not that hard. All you have to do is use your feet like wheel chocks as you are lining up the holes with the studs. move your feet closer or further apart to raise/lower the wheel.... that's it.

 

Never used them, never had problems, just lightly tightened lug nuts before hitting them with a torque wrench to make sure the lugs get seated in the bore right and the wheel is center.

I could see how rings would take some pressure off the studs though. I've just never used them.

 

hub rings are always a good idea, they never hurt,

if you use the proper lug nuts and tighten in teh correct pattern, and drive only on the street, youll be 100% fine.

if you track your car, get the rings.

 

An additional note: the hubrings come in both plastic and aluminum, i prefer the plastic for street use since using different metals together can cause the aluminum rings to stick to the steel hub mounting surface which can be a nuisance sometimes.