If you are worried about ride, going to a bigger wheel is going to hurt you. You can get free shipping and a contracted installation rate from tirebuyer.com. Another thing to consider from the ultra LRR OE tires is tread depth of 8/32 and under is ideal for LRR, so simply finding used LRR tires with a tread depth guage may be a more efficient choice over all, especially if they were a 90k mile tire when new.
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