Feels like taller gearing after fitting 17" wheels

[Guest001]

215/65 R16 and 235/55 R17 are both factory fitments.


A tyre with a bigger CR will also make the speedometer less underestimate the vehicle's speed.

???? It will actually bring a speedo to read more correct I worked out my Polo which is 7kph optimistic would come correct with 40mm larger diameter tyres which unfortunately would seriously over gear it and be outside legal size increases..

All speedos must read, if not correct must over estimate the true speed.

They cannot legally UNDERESTIMATE it EG read 97 when doing 100

[Diesel_vert]

My mistake, you are of course correct - bigger tyres will make the speedo less overestimate the vehicle's speed.

[brad]

tyre size is near enough the same so it won't be that unless you've gone from a nearly bald 16" to an almost new 17".

Have you weighed them? I'd guess the 17" rim/tyre combo probably weighs 1-2kg more than the 16" & the weight is further out so there is more inertia to overcome, especially from rest. You'll probably find your fuel economy is worse too.