Hi there
I have a 1978 Firebird - I run 275 60 15 rears and 255 60 15 fronts.
I just ordered the Year One Rally IIs
Here are the questions:
1. I want to stay with 275 width which means I have to go with a 40 sidewall and a 26 " tall tire, my RPMs at 60 mph go up about 200 rpm
2. I can get a 17" tire as tall as the ones I have which means no change to rpm or speedo but I have to go down to 255 50 17
It's not a daily driver and I will keep by 15 inch rims and rubber.
I'm leaning toward 275 - any thoughts?
Do I go 275 on all corners or a little skinnier up front (255)
Looking for thoughts
Thanks
MIke
I have a 1978 Firebird - I run 275 60 15 rears and 255 60 15 fronts.
I just ordered the Year One Rally IIs

Here are the questions:
1. I want to stay with 275 width which means I have to go with a 40 sidewall and a 26 " tall tire, my RPMs at 60 mph go up about 200 rpm
2. I can get a 17" tire as tall as the ones I have which means no change to rpm or speedo but I have to go down to 255 50 17
It's not a daily driver and I will keep by 15 inch rims and rubber.
I'm leaning toward 275 - any thoughts?
Do I go 275 on all corners or a little skinnier up front (255)
Looking for thoughts
Thanks
MIke