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Posted by: Jetsetsurfshop Nov 10 2013, 07:23 PM

I have a few sets of wheels and wondered if theres any reason I would need two different tire sizes? I currently running 205/50/15, think I need 215/60s? Would this be beneficial at a larger track like Sebring?

Posted by: brant Nov 10 2013, 09:14 PM

Compound is more important than size. 60 series is going to effect handling. I'd change gearing or redline if that's the intent.

Posted by: Woody Nov 10 2013, 09:22 PM

60 is way too tall.

Posted by: r_towle Nov 10 2013, 09:51 PM

Get a spreadsheet with a gear chart.
Add in tire diameter
Add in your optimal RPM where you make peak power

You should be able to plot the tire diameter or gearing that will provide you with what you need.

Posted by: 6freak Nov 11 2013, 09:33 AM

[quote name='Jetsetsurfshop' date='Nov 10 2013, 05:23 PM' post='1954847']
I have a few sets of wheels and wondered if theres any reason I would need two different tire sizes?

yes! because options are good