Currently have a 2012 Monte Carlo that has 205 45 r16.
Fully aware of the speed difference when you get thicker tyres, does an upgrade to 205 50 r16 have any real negative effects?
Guessing it would be a bit more comfortable and easier to buy tyres as well.

 

https://tiresize.com/tyre-size-calculator

 

 

Edited 23 June, 20205 yr by Roottootemblowinootsoot

Thanks Roottootemblowinootsoot.

 

Not too big if it's 2.7kms according to this site. Pushing through with this plan.

The gearing will be a little higher when using 205/50R16 tyres instead of 205/45R16 tyres. This is most noticeable when pulling away from a standstill in 1st gear, and accelerating or trying to maintain speed in top gear.

 

If you're not happy with 205/50R16 tyres, try 195/55R15 tyres on 15" rims. This keeps the gearing the same as 205/45R16 tyres. 195/55R15 tyres tend to be cheaper than 205/45R16 tyres.

 

With 195/55R15 tyres I would fit them on narrow 5.5J rims rather than more standard 6J rims as this further improves the ride comfort and also helps to protect the rims from kerbing damage as the sidewalls on the 195/55R15 tyres will bulge out more on the narrower 5.5J rims compared to slightly wider 6J rims. Steel rims from 2017 onwards VW Polo/Seat Ibiza/Audi models will fit. These have a specification of 5.5Jx15 ET40. They are an attractive 18-hole design.

 

A couple of other alternatives for steel rims for the 195/55R15 tyre size includes 6Jx15 ET35 and 6Jx15 ET38. Like the 5.5Jx15 ET40 steel rim, the 6Jx15 ET35 steel rim is also available in an attractive 18-hole design.

Edited 23 June, 20205 yr by Carlston