Goodmorning fellow F owners... I have a unrelated Isf topic but i really wanted to hear what you guys think i should do. Purchased Forgestar F14s for my Ferrari 360 spider. Got the rims in 19x8.5 F 19x11 R ..stock size is 215/45/18 F 275/40/18 R... Wanted to get ur opinions on what size tire i should go with for the ferrari since i know u guys have alot of knowledge in the tire spec topic. Thanks

 

Because you don"t give the offsets of the new and old wheels so i just give you tire size 305/30r19 r and 245/35r19 f.

 

The forgestars will be 5x108 +26 front and 5x108 +35 rear. Stock offset is +28 front and +30 rear

 

Sorry while i was typing and i got a phone call.
I still don't have the width of the old wheels but with that offsets i think you will be fine with the tire specs above ( 305/30r19 R, 245/35r19 F) b/c it is very close to the stock tires specs in overall diameter. Only on the rear is about 1.5mm shorter than the stock ones.

 

sorry, correction on the rear is 11.5mm shorter than the rear stock tires.