I can't decide if to fit my new wheels now on when i get the car kitted, i was going to save the wheels until i get the car kitted but i'm not sure i can wait.

 

would 295's and a 10" rim sit ok on stock arches?

i do have a set of 17's to fit if i could wait.

Offset? It all depends on that.

Offset? It all depends on that.

 

Sorry to hijack, what does offset refer to, i.e. distance from what?

The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel.

...this might help... it's usually stamped on the wheel somewhere, usually on the back of the hub face.

 

The offset of a wheel is the distance from its hub mounting surface to the centerline of the wheel.

 

Sorry, centreline of the wheel? is that from the distance from the hub to the front face of the wheel?

 

Tar for the help!

No, it's the centre line. Dead centre of the wheel. If you were to split the wheel in two from the very centre of the banding.

 

Then the offset is the relation the hub face is to that centreline.

ah i see the midpoint line of the wheel to the mounting of the hub to the wheel right gotcha, so the larger the offset the more room for larger calipers?

 

That'll make choices about a braking system much easier! Tar Si

Yeah, but you need to take into account wheel widths too. You can't simply go for a huge offset as the wheel won't fit under the arch.

Yeah, but you need to take into account wheel widths too. You can't simply go for a huge offset as the wheel won't fit under the arch.

 

yeah i understand that it is like anything that is "bigger the better" it's within a limit. Currently looking at braking and suspension set-ups and getting over the intial nomeclauture hurdle if you understand what i mean, what things refer to rather than there application!

 

Sorry for the hijack again jaffa, my general opinion would be to leave older wheels on if you modifying the car incase of any accidents - will make anything done all the more special if the wheels go on last and finish it off!

 

Thanks again!

I am sure you know about centre bore too and PCD. :)

I am sure you know about centre bore too and PCD. :)

 

:p Enlighten me lol

ah i see the midpoint line of the wheel to the mounting of the hub to the wheel right gotcha, so the larger the offset the more room for larger calipers?

 

That'll make choices about a braking system much easier! Tar Si

id say the smaller the offset the more room for larger calipers tbh :)

The machined hole in the center of the wheel that mounts to the hub of the car. Needs to the same on the hub as it is on the wheel else the wheel will float when the bolt holes are tightened up giving excess play and stress on the bolts...or rather studs on the Z. Makes mounting the wheel difficult too. Some wheel manufacturer's make wheels of a universal fitment meaning they have spigot rings fitted to an oversized bore to compensate for the difference. These are small machined pieces of metal, or sometimes made of plastic that slip inside the centre bore of the wheel so that when fitted, there's no play.

 

PCD means 'pitch circle diameter' I think and it's the relationship the bolt holes have to the position on the hub. IE, PCD could be 5 x 100mm. Which is 5 holes and is the measurement of the diameter of a circle drawn through the centre of your wheel's bolt

holes.

id say the smaller the offset the more room for larger calipers tbh :)

 

I may well be thinking of this in the wrong way but from the diagram, to me it looks like if there is a greater positive offset there is a greater volume over the top of the brake disc for the calipier to fit, for the same width if you reduce the offset to a minimum your reducing the space inside the rim? :confused:

 

Is that wrong?

 

Tar, Ste

The machined hole in the center of the wheel that mounts to the hub of the car. Needs to the same on the hub as it is on the wheel else the wheel will float when the bolt holes are tightened up giving excess play and stress on the bolts...or rather studs on the Z. Makes mounting the wheel difficult too. Some wheel manufacturer's make wheels of a universal fitment meaning they have spigot rings fitted to an oversized bore to compensate for the difference. These are small machined pieces of metal, or sometimes made of plastic that slip inside the centre bore of the wheel so that when fitted, there's no play.

 

PCD means 'pitch circle diameter' I think and it's the relationship the bolt holes have to the position on the hub. IE, PCD could be 5 x 100mm. Which is 5 holes and is the measurement of the diameter of a circle drawn through the centre of your wheel's bolt

holes.

 

Call me a geek but i find this stuff really interesting and thats two nuggets i didn't know that now i do!

 

Tar

I think the box has a offset of 22 written on it.