Larger Wheels On 178? - Event Date: 04 Aug 2020

I do recall some people doing so. The hard part would be matching the bolt pattern which is 5 on 4.5"

My 2015 178 has lift blocks and 15" tires will fit. I considered this but the cost weighed against the benefits didn't seem to add up. Personally I don't think you see the benefits you expect, you're talking about an inch.

Originally posted by StephenH Moving from a 14" LRC tire (1760 lb/tire at 50 psi) to 14@ LRD (2040 lb/tire at 65 psi) to 15" LRD tires (2150 lb/tire at 65 psi) does make sense. Even 15" LRC tires have a higher load rating (1820 lb/tire) compared to the 14" LRC tires that came standard on our 179. Since the 178 is about the same weight as the 179, moving to the 15" LRD tires begins to make a lot of sense. They have more weight capacity. They won't help with fuel mileage but I think they will be less likely to blow out than a 14" LRC tire.

Thanks for the input!  As it turned out, I bought Maxxis steel-belted radials before we started out on our trip up the coast from Florida to Massachusetts last month. I based my purchase on really two factors - one, they were rated for 70 mph. That being admitted to, I set my cruise control to 65 for those nice straight and long stretches. 70 mph gives me peace of mind. Two, they appear to be a trustworthy ride according to a lot of tire reviewers. I also put two Michelin light truck tires on my Grand Caravan to give my tail end a bit of a lift. I really like the steady ride! 

Its not the inch its the load rating. My 15 inch wheels and the LRD tires are both rated for 2540 lbs.  I'll bet the 14 inch wheels FR puts on there are only rated to 1750. As I look at bit, you're only as good as the weakest link. What's the point in having high spec tires on low spec wheels? Just my opinion.