Stock tire is 195/65/15. I'm considering using 205/60/15. Need to know if there is significant effect on speedometer, ABS, etc.
ride will probably be slightly harsher..but will handling be improved? Will hydroplaning be more problematic? Thanks.

Jim

Hi James,
I switched my 400E from stock 195/65/15 to 205/60/15 before going to the 225/50/16's. The 205's work well. Good handling improvment, ride is no better or worse, any speedo error would be so slight even at triple digits. There is only a 7.5mm difference between the two. That is negligible considering you could get 7.5mm variance from worn/full tread or air pressure. Ride and aquaplaning is more of a function of the tire used. I'm not as current as to what tires are offered in 205/60/15 but I think Michelin makes the Pilot SX in that size. If they do I would recommend it. The SX is a slightly softer version of the Max Performance MXX3. Loses a little handling off MXX3 #'s, gains ride, treadwear, etc. It wont do heavy snow or ice but wet and dry should be great.

Hope this helps....Lee