Im in the area. I would rather be on something like 30’s. But you will be perfectly fine on most road tires. I would go for durability so you could run slightly lower pressure. But thats just me. Most the steep stuff is paved on that route, so grip wont be a huge concern. Everyones ridden D2R2 on road tires over the years, and that generally has a lot more steep dirt roads than this (if the routes are similar to the old ones).
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