Wheels I am after are currently only available in 19's with 8" wide. Was originally heading for 20's but stepped down to get what I wanted but now the drop to 8 as well and I am waivering. I see the can run with 245's which is probably okay but don't know a great deal on alloys. I was just down the "bigger the better" route originally. Am I loosing much with opting for these?