I've been talking to one of my friends on and off for a while about upgrading wheels. There's a place here in the UK that will custom make any size you like and I was thinking of 17x9.5. Just wondering what size tires people use with this size rim. 275/45/17? or 275/40/17? I don't want to throw the speedo off too much.

Thanks

 

i personally dont have 17x9.5 rims.....but when i did my 15" to 16" swap i used this site to help me gauge what size i need to keep it closest to stock tire size so i dont throw off the speedo......


http://www.miata.net/garage/tirecalc.html


hope this helps....

 

275-40-17 is the proper size.

 

275/40/17 is what I use.

 

same here

 

i am running 275/40 in front and 315/35 in rear on 11" rim

 

I run 275/40/17 on the 17x9.5 unless I'm drifting. And since I only use them to drift, I dont run that size anymore.

 

275/40/17 here also

 

I presume you could go up to 285? Only problem is, the price difference between 275/40/17 and 285/40/17 is $40 per tire here in the UK.