17x8 with 235/40-17's - Mazda 6 Forums : Mazda 6 / Mazda Atenza Forum

1low6 · 03-23-2007, 08:55 PM

im gonna be purchasing a set of 17" wheels and some toyo proxe's ra1's to run at the track for autocross this summer. i wanna run a 17x8 with like a 48mm offset and some 235/40-17's. anyone on here ever run this combo? i just need to know if they well rub or not.

Wiggum · 03-23-2007, 09:04 PM

You'll be good... those tires are undersized...

What wheels are you looking at?

1low6 · 03-23-2007, 09:23 PM

not sure yet, something light weight. a good buddy of mine is a manager at les schwab, so im gonna talk to him and see what he can get me for a good price hahaha. i might just run the 5zigen fno1r-c cuz i can get those for like $150 a wheel.

falcontx · 03-23-2007, 11:29 PM

I run 17x8+45 with 235/45/17 tires. You'll need to roll the rear fenders to avoid damaging the tires, but it will definitely fit.

235 tires are not undersized for an 8-inch rim. They'll provide a good balance between comfort and performance. If you went 245, you'd have a lot more sidewall flex and your turn-in wouldn't be as sharp.

nickski · 03-24-2007, 12:38 AM

what wheels are you running?

Quote:

I run 17x8+45 with 235/45/17 tires. You'll need to roll the rear fenders to avoid damaging the tires, but it will definitely fit.

235 tires are not undersized for an 8-inch rim. They'll provide a good balance between comfort and performance. If you went 245, you'd have a lot more sidewall flex and your turn-in wouldn't be as sharp.[/b]

Marko343 · 03-24-2007, 03:26 AM

I run a 17x8 Kosei K1-TS, Very light wheel only about 14-15lbs with a 45mm offset, I have 235/40R17 Hankook RS2 Z212.

They rears you need to roll to avoid any trouble with alot of passengers and hard turns, otherwise they fit very well!

dawei213 · 03-24-2007, 08:53 AM

Quote:

I run 17x8+45 with 235/45/17 tires. You'll need to roll the rear fenders to avoid damaging the tires, but it will definitely fit.

235 tires are not undersized for an 8-inch rim. They'll provide a good balance between comfort and performance. If you went 245, you'd have a lot more sidewall flex and your turn-in wouldn't be as sharp.[/b]

Why would have 245's cause more sidewall flex? isn't the height of the side wall the determining factor to the amount of sidewall flex?

btw, i run 235/45-17's on 17x8 +48mm offset. One of the best combo for the 6. It'll fix, but like everyone have already stated, you're going to need to roll your rear fenders.

posttosh · 03-24-2007, 10:47 AM

Quote:

Why would have 245's cause more sidewall flex? isn't the height of the side wall the determining factor to the amount of sidewall flex?[/b]

The construction of the tire is the main factor in sidewall flex. Those big suckers on the Kenworth big-rig trucks have really tall sidewalls and hardly flex at all.

Back to reality: a tire's aspect ratio is the sidewall height divided by the section width. It follows, therefore, that within a given aspect ratio (here, 45-series tires) the wider the section width, the taller the sidewall.

03-23-2007, 08:55 PM	#1 (permalink)
1low6 Track Racer Join Date: May 2006 Location: olympia, WA Posts: 394 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	im gonna be purchasing a set of 17" wheels and some toyo proxe's ra1's to run at the track for autocross this summer. i wanna run a 17x8 with like a 48mm offset and some 235/40-17's. anyone on here ever run this combo? i just need to know if they well rub or not. __________________ 2003 mazda 6s mtx:H&R sport springs:18" bronze Work Emotion Cr Kai wheels:Work Wheels blue lug nuts:225/40-18 toyo proxes4 tires:Exedy stage 1 clutch:Cp-e motor mount:Black Racing front lip:Mazdaspeed short shifter:TWM Performance shift knob:Racing Beat front and rear sway bars: Racing Beat rear end links:AWR Racing front end links:Racing Beat exhaust:McCulloch 8000K HID'sDM slim ballast yellow HID's for fog lights:Tein hood dampers:Zex nitrous system:Air box mod:Silvia parts front grill and eyelids:Metra kit with kenwood deck:Morel hybrid innovation 6.5" components:Zapco REF350.2 amp:Treo tsx 12" sub:Playstation 2 under the seat:7" lcd screen in the map compartment:25% tinte badged:removed door moldings my garage! my cardomain

03-23-2007, 09:04 PM	#2 (permalink)
Wiggum Super Moderator Join Date: Aug 2005 Location: Orlando, FL Posts: 4,140 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	You'll be good... those tires are undersized... What wheels are you looking at? __________________ 2006 Mazdaspeed6 - Grand Touring w/ Moonroof - Black/Black- Click here to see it... 2005 Mazda6s - Fully loaded w/ every option but ATX - Steel Gray/Black (SOLD) - Click here to see it... 2006 Mazda6i - Sport package w/ Bose/Moonroof ATX - Dark Cherry/Black - Click here to see it...

03-23-2007, 09:23 PM	#3 (permalink)
1low6 Track Racer Join Date: May 2006 Location: olympia, WA Posts: 394 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	not sure yet, something light weight. a good buddy of mine is a manager at les schwab, so im gonna talk to him and see what he can get me for a good price hahaha. i might just run the 5zigen fno1r-c cuz i can get those for like $150 a wheel. __________________ 2003 mazda 6s mtx:H&R sport springs:18" bronze Work Emotion Cr Kai wheels:Work Wheels blue lug nuts:225/40-18 toyo proxes4 tires:Exedy stage 1 clutch:Cp-e motor mount:Black Racing front lip:Mazdaspeed short shifter:TWM Performance shift knob:Racing Beat front and rear sway bars: Racing Beat rear end links:AWR Racing front end links:Racing Beat exhaust:McCulloch 8000K HID'sDM slim ballast yellow HID's for fog lights:Tein hood dampers:Zex nitrous system:Air box mod:Silvia parts front grill and eyelids:Metra kit with kenwood deck:Morel hybrid innovation 6.5" components:Zapco REF350.2 amp:Treo tsx 12" sub:Playstation 2 under the seat:7" lcd screen in the map compartment:25% tinte badged:removed door moldings my garage! my cardomain

03-23-2007, 11:29 PM	#4 (permalink)
falcontx Mazda Guru Join Date: Feb 2004 Location: Grand Prairie, Texas Posts: 4,026 Thanks: 0 Thanked 1 Time in 1 Post Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	I run 17x8+45 with 235/45/17 tires. You'll need to roll the rear fenders to avoid damaging the tires, but it will definitely fit. 235 tires are not undersized for an 8-inch rim. They'll provide a good balance between comfort and performance. If you went 245, you'd have a lot more sidewall flex and your turn-in wouldn't be as sharp. __________________ Are you one of our valued, satisfied, and/or devoted customers? -- Get your banner here!</span>[/b]

03-24-2007, 03:26 AM	#6 (permalink)
Marko343 Track Racer Join Date: Jun 2005 Location: South Chicago Suburbs Posts: 999 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	I run a 17x8 Kosei K1-TS, Very light wheel only about 14-15lbs with a 45mm offset, I have 235/40R17 Hankook RS2 Z212. They rears you need to roll to avoid any trouble with alot of passengers and hard turns, otherwise they fit very well! __________________ ~-~-~-~-~-~-~-~- ^CarDomain Link^ -~-~-~-~-~-~-~-~-

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