986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Rear tire size? 225/45 R17 or 255/40 R17 which one for comfort?

997_986 · 04-28-2026, 01:19 AM

Front 205/50 R17 with Rim 7x17 - 55
Rear 225/45 R 17 with Rim 8,5x17 - 50/48
or
255/40 R 17

if using original Porsche rims

I have the smaller rear dimension as winter tires and the wider ones in summer. There is no difference in ride quality.

04-28-2026, 01:19 AM	#7
997_986 Registered User Join Date: Jul 2024 Location: Western Europe Posts: 296	Front 205/50 R17 with Rim 7x17 - 55 Rear 225/45 R 17 with Rim 8,5x17 - 50/48 or 255/40 R 17 if using original Porsche rims I have the smaller rear dimension as winter tires and the wider ones in summer. There is no difference in ride quality. Last edited by 997_986; 04-28-2026 at 01:23 AM.