
Cold tear or Hot Tear ?
Hi everyone,
It was my second time riding on a racetrack, and after the second day my rear tire looked like photo 1 .
Conditions were quite cold:
- Air temperature: 9–10 °C (48–50 °F)
- Track temperature: 10–11 °C (50–52 °F)
I was using Metzeler Racetec TD Slick tires.
The tires were kept on warmers all day, and before the first session they were on warmers for about 2 hours to make sure they were fully heated.
Photo 1
Pressure on warmers: 1.75 bar
After seeing the wear in the first photo, I was advised to increase the pressure to 1.85 bar.
Photo 2
Tire condition after another session with 1.85 bar.
My question for more experienced riders:
Does this look like cold tear or hot tear?
My opinion is that it looks more like cold tear, and the tire seems to look better in the second photo.
Unfortunately, I didn’t measure the hot pressure immediately after coming off the track, but I will definitely do that next time.
Thanks a lot for your opinions and experience! 🙂