19 inch wheels on a GTS

[Koln-RS]

I would be interested to know the weight differences between a set of 18", 19" and 20" wheels and tyres.

Reducing unsprung weight can have considerable benefits to ride and handling, and even performance.

[Slippydiff]

Did someone say 19" wheels on a 981 Cayman ... ?

[Quibble]

Hiya. As a new Boxster owner this may be a daft question - my Boxster has 20"s on at the moment. If I bought a set of 18"s for winter (other than he wheels) are there are settings, bolts or anything else that I need to change?? Thank you