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Tire width choice for 17x7.5 +45, stock suspension

7040 Views 10 Replies 4 Participants Last post by  geeboss
Hi all,
Realized I posted this first by mistake in the MS3 portion of the forum...my bad...

New here, and I've had my '13 MZ3 Skyactiv 6spdMT for about two months now. Love it so far and I'm going to be adding mods slowly but surely.

I'm set on the Sparco Assetto Gara wheels, 17" x 7.5" +45 offset and I'm trying to decide which tire width to use. I will be keeping the suspension stock.

Basically, I'm trying to decide among:
- 215/45R17
- 225/45R17
- 245/45R17

I'm not very knowledgeable about the wheel/tire/suspension geometry.

Any input appreciated, thanks!
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On my 2011 Mazda 3 2.5L I've gone from OEM 205/50R17 to 225/45R17 and currently running 235/45R17. The 7.5" wheel width with the 225/45R17 seems to be the sweet spot. The 235/45R17 could use a 8" width wheel for its sweet spot. For all seasons I've tried the Yokos Avid S34, Goodyear TripleTred, Michelin Pilot AS/3 and currently running on BF Goodrich comp sport AS2. Like the Michelins the best and the BF Goodrich are a closed 2nd. I'll go back to Michelin's in their AS/3+ when the time comes. I'm not a high mileage driver so I favor grip over longer tread life.
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For high mileage drivers look at Continental PureContact, Michelin Defender, Michelin Premier. My wife has used the first two; Also have purchased from Discounttiredirect, Tirebuyer, and Tirerack never an issue with any of them.
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