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Just had a great day at Streets, came home early was already pooped by 4pm. Attached are two pics of the front tires, after the first warm up session in the morning, and at the end of the day. These R1's wear really well and the grip is pretty consistent and feel better to me than my old RA-1's. If you ignore all the gummies the tire doesn't show that much wear from a track tough on front tires (well all tires). Very happy with these.
Pressure wise I much preferred higher temps that were recommended in the R1 manual of staying near 35 hot. Fronts I liked 34 and rears 35 all hot. Pyrometer right off a hot lap showed the fronts at 37 were 140/160/140 so bumped down to 35 and it was more or less even. The rears at 35 showed 140/150/160 from outside to inside, so going to try adding one shim and seeing if they stick better.
Anyways long story short, the tires feel good lower temps in earlier slower sessions in the early part of the day, but once things got warmer the car definitely liked the 34/35 hot combo. This is on 205/15F and 245/16 rear.
Pressure wise I much preferred higher temps that were recommended in the R1 manual of staying near 35 hot. Fronts I liked 34 and rears 35 all hot. Pyrometer right off a hot lap showed the fronts at 37 were 140/160/140 so bumped down to 35 and it was more or less even. The rears at 35 showed 140/150/160 from outside to inside, so going to try adding one shim and seeing if they stick better.
Anyways long story short, the tires feel good lower temps in earlier slower sessions in the early part of the day, but once things got warmer the car definitely liked the 34/35 hot combo. This is on 205/15F and 245/16 rear.
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