MDeezy

iTrader: (27)

Hello all,

I know the bolt pattern the max is 5x114.3 (or 5x4.5).

this may seem like a dumb question but I dont know and so I look here for help and knowlege.

If I were to purchase rims with that specific bolt pattern (5x114.3) then there is no need for a space? or adapter plate? cant remember the name but its a piece that I believe converts a specific rim to the proper pattern?



is the miata tire calculator acurate? I am on 215/60/15 stock for the 4th Gens, and want to upgrade to 16"s for better grip, and it looks like 225/50/16 is the best size according to the miata tire calculator.

what size are you runnig if you on 16" and a 4th gen?

Ammi

iTrader: (26)

If you get rims w/ 5x114.3 bolt pattern, you don't need any adapters.

MDeezy

iTrader: (27)

sweet. thanks for the clarification.

xnyc

iTrader: (9)

that isnt quite correct. the actual spacers are needed so that your offset is right. to get the right fit on your car, you have to have the proper offset, which is around 35-40mm for maximas.(around that range) just because your bolt pattern is the same doesnt mean that the offset will be the same..

Ammi

iTrader: (26)

He was referring to adapters to convert bolt patterns.

That's the ideal offset but only for rims w/ certain width. 7" wide rims w/ 40 offset is not the same as 9.5" wide rims w/ 40 offset.

Bman

Adapters and spacers are technically two distinctly separate things, although adapters often have to act as spacers because the hardware built into them takes up space. You won't need adapters if you buy 5x114.5 wheels. You MAY need spacers if the wheels have an offset that isn't quite right, but it's far better off to get the right offset wheels in the first place.

The miata.net tire calculator is correct, but purely theoretical and doesn't take into account things like how much the tire actually bulges when you put the car down on the ground. It is close enough for most people's purposes though, since you do not have to be super-accurate when using the calculator to figure out equivalent tire diameters. Within 3% of original is usually the standard tire pros use.

MDeezy

iTrader: (27)

well thank you all for the detailed explination.

so in the faqs about tires says the bolt pattern is 5x114.3, you [Bman] say 5x114.5 would either pattern work with no need for adapters since the difference is only .2mm or could that make a difference?

So I wouldnt need anything assuming the rim is the proper bolt pattern AND the proper offset, I understand that now.

Now. Ammi brought up something interesting, the width you were refering to is in depth?

I am wondering about rims where one will go almost to the end of the tire:


and others where they seems rather surrounded by much more tire,


what is this called or how is this explained numerically?and does having it close to the edge of the tire like that wear faster?