Honestly, how many sets of tires one go through on a track day? Unless a puncture occurred, most won't even change tire once.

Even the Michelin slicks can last a day lapping. 

If someone is bringing a set of track tires to change over at the track, that means a trailer is involved, not too hard to throw the extra long torque wrench for centre lock onto the trailer. Yes it's true it takes 2 person to change a wheel with centre lock, I am pretty sure someone don't mind sitting inside the car stepping on the brakes to help out. 

 


--