mymango

Just ordered 16 inch rims and bought winter tires for my JK (225/75R16). All Seasons are 255/75R17; but the standard tire for the sport is a 16 and I wanted to save a little cash. Didn't like the feel of my all seasons in the slush and such and the roads here in NB can be a little questionable at times. Any points or issues with the tire size difference other then the speed difference.

JTPhoto JK

Shouldn't be a problem other then the smaller tire may be harder on gas dependent on how much shorter they are then your stock tires. You also have reduced your ground clearance with a smaller tire which could be an issue in deep snow..
Other then that you should not have any mechanical issues.

mymango

Jeff,

Thanks; the 225/75R16 was standard on the 2011 Wrangler Sport, so it should be okay. Not overly worried about clearence, only loose an inch or so.

mymango

Winter tires and rims on!! According to wheel calculators my speedo should be reading slow i.e. if I'm drivin at 100 km/hr I'm actually doing 110 km/hr but it doesn,'t seem like it. Is it possible for the jeep computer to auto correct? I have access to a OBD computer and plan to check settings after New Years.

Savasa

Hey my,
For a quick check and to determine a "fudge factor" in the meantime, just borrow someone's GPS. They're probably more accurate than the speedo anyway.
Peter

mymango

Savasa,
Thanks, never thought of that !