How big of a tire do you think you can put in the stock 9" wide rims? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

alex33x · 04-11-2009, 07:02 PM

I was thinking the tires are a bit narrow, I wanted to get at least 305's to help with traction but I wonder if they'll fit.

gunslinger · 04-11-2009, 07:52 PM

275's are the biggest I would go while still being safe and retaining great handling characteristics. Anything bigger and the sidewall has to 'stretch' too much to meet the bead on the rim.

rolnslo · 04-11-2009, 09:49 PM

I seem to remember someone posting that they had a conversation with one of the engineers back at the Indy show last year and he was told that the widest you could fit on the stock wheels was a 285 due to clearance limitations.

If you want to go wider than 285, you are going to need new wheels with a different offset.

By the way, here is what a 305/50R20 looks like on a 9" wide rim. Too much flex in the sidewall to be any good for handling. 305's would handle better on a 10" or 11" wide rim.

alex33x · 04-12-2009, 09:47 AM

Since I'll probably end up supercharging, this is one of the things that worries me.

275's are too small, and I loved the rims that ocme stock I'll probably end up changing them then.

04-11-2009, 07:02 PM	#1
alex33x Drives: 2013 Camaro ZL1 Join Date: Apr 2009 Location: El Paso, Tx Posts: 688	How big of a tire do you think you can put in the stock 9" wide rims? I was thinking the tires are a bit narrow, I wanted to get at least 305's to help with traction but I wonder if they'll fit. __________________ Devliered July 20, 2012

04-11-2009, 07:52 PM	#2
gunslinger Drives: 1998 Z28 M6 Join Date: May 2008 Location: Lake Forest, CA Posts: 254	275's are the biggest I would go while still being safe and retaining great handling characteristics. Anything bigger and the sidewall has to 'stretch' too much to meet the bead on the rim. __________________ GTR: Get Transmission Replaced

04-12-2009, 09:47 AM	#4
alex33x Drives: 2013 Camaro ZL1 Join Date: Apr 2009 Location: El Paso, Tx Posts: 688	Since I'll probably end up supercharging, this is one of the things that worries me. 275's are too small, and I loved the rims that ocme stock I'll probably end up changing them then. __________________ Devliered July 20, 2012

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04-11-2009, 09:49 PM	#3
rolnslo Rolling along... Drives: 2011 2SS/RS SGM Join Date: Mar 2008 Location: Houston, TX Posts: 4,380 View My Garage	I seem to remember someone posting that they had a conversation with one of the engineers back at the Indy show last year and he was told that the widest you could fit on the stock wheels was a 285 due to clearance limitations. If you want to go wider than 285, you are going to need new wheels with a different offset. By the way, here is what a 305/50R20 looks like on a 9" wide rim. Too much flex in the sidewall to be any good for handling. 305's would handle better on a 10" or 11" wide rim.