Join Date: Nov 2016
Location: Kailua, Oahu, Hawaii
Yet another update so nobody needs to go through what I'm sorting out.
Going to 195/50R16 from the stock 175/55R16 fronts results in...
.1 inches higher, 23.6" to 23.7"
.8 inches wider, 6.9" to 7.7"
.1 inch diameter increase (+0.4%)
.8 inch wider increase (+11.6%)
No change in sidewall sizes
.3 increase in circumference (+0.4%)
3 less revolutions per mile
Speedo error change only .4 mph at 90 mph.
Looks like the only negative impact should be the additional weight and rolling resistance. Handling geometry should be pretty much the same. Positive impact will be up to date compound/tread and more front end grip, balancing out the car's understeer tendency.
As a sidenote, with the 205s currently on the front, I didn't have rubbing issues that I'm aware of. I also didn't have oversteer issues - it consistently slightly understeers, or drifts all four at low speed under power. It only wants to come around under aggressive trail-braking or hamfisting the throttle.
The Continental ExtremContact Sport in 195/50 is also approved for 5.5 rim width, up to 7.0 width.
Last edited by DeafPaul; 11-07-2017 at 03:32 PM.