Quote:
Originally Posted by DaveC113
On the SC3s, the OEM size is made specifically for the Camaros, I think the other sizes are likely a different compound that will be softer and warm up faster, prolly not last as long. Better for autox, cooler temps, etc. OEM SC3s love the heat, seems very difficult to get them too hot and it takes a while to warm them up.
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There have been some pretty reliable sources that have said the GY SC3 compound is the same across the tire size lineup. The construction is also the same. The difference is the sizes under 265 have a bit different tread dimension setup (more tread void per the tread width) and the tread depth.