[jimmyc13]

I'll be interested to know how your mileage is affected by going 225 vs 215 on the 19's (diameter & revs per mile)

S-Drives:
225/35R19
Weight: 22.50
Diameter: 25.2
Revs/Mile: 823

OEM:
215/45R17
Weight: 21
Diameter: 24.7"
Revs/Mile: 844

Me too, but don't see that he's responded to this . Where did you obtain the OEM wheel weight of 21 lbs from?

 

[jimmyc13]

21 lbs, is the OE 'tire' weight (got that off of tirerack)
The OE wheels weigh 24.6 lbs - which surprised me.

Thanks.

Thanks pomexcan, that makes more sense to me.