I currently use
Hakkapeliitta 9's Studded for the Ice Time Trials.
I might make super studs for this season though...would that have an effect (I'm not sure how it could)?
Realistically though,
if I wanted winter rims to fit more flush/have the same track width as the OEM R17/8's would one of the following be a better wheel size:
16R/7 +45mm (My gut is thinking this would be the ideal?)
16R/7 +48mm
16R/7.5 +48mm
16R/8 +42 (I'm guessing this would be too wide/stick out/rub because it's the same wheel width as stock?)