BobN54

When I checked on new 16-inch V-rated tires for the LS, there were few choices, so to have more, I opened a bag of worms and ordered a set of MSW 17x8's (40 mm offset) from Tirerack.com. I test fit the rim today. It clears the brakes fine. But gosh, it looks wide, and I'm wondering if the 8 inch rim is too much. It may stick out from the wheel well too much; yea, it's hard to tell without a tire on it. What do you think? I'm wondering if I should have chosen a 7.5 or 7 inch wheel instead? Another question; Tirerack's calculator comes up with a 225/55R17 for this setup (stock is 225/60R16). I noticed some of you run +1 with 235/55R17's on LS430 rims. Is Tirerack just being conservative to guarantee no rubs?

RA40

iTrader: (6)

You are good. That fitment is fine/conservative once the car is on the ground weighted. Nice looking wheel too. A 235/50-17 is 26.3", 235/55 at 27.2" while the 225/55 is 26.7". Stock 225/60-16 is 26.2" diameter. I'd suggest the 235/50 but any of those sizes work and you'll have to mentally adjust for the speedometer differences.

JohnAndic

It hardly sticks out at all imo. These cars looks pretty good with the big wheels but I don't want to run anything but stock wheel size.

BobN54

Thanks for the reassurance. I took a few measurements. The MSW rim protrudes 5/8 inches more than stock on the outside, and 3/8 inches more than stock on the inside. I was a bit worried about that 5/8 inch increase. The stock 16 inch wheel outer width is 204 mm, and the offset is 45 mm (that's by my measurements; probably within +- 1 mm). The MSW wheel outer width is 230 mm, with a 41 mm offset.

The speedo reading at 60 MPH for each: 235/50-17 is 59.3, 235/55 is 61.3, and 225/55 is 60.4. So speedo error doesn't seem to be much of a factor. By the way, everybody may already know this, but for those that don't, the outside width of a rim is very close to one inch more than the specified width.