The Orondo Grade, here in the ‘Endurance’ casing, is a modern tubeless road tire with the performance, comfort, and ride feel that Rene Herse tires are famous for. It’s rated to a maximum pressure of 90 psi (6.2 bar)—enough even for heavy riders and those who prefer a stiffer feel to their bikes. A high-tech liner keeps the supple casing airtight without making the tire stiff and sluggish.

Rene Herse’s much-toted supple casing rolls smoothly over surface irregularities. The tread pattern interlocks with the road surface for superior cornering grip, wet or dry, and enough thickness in the center to last thousands of miles.

The Orondo Grade is a 7-mile 10% climb up a side canyon of the mighty Columbia River and the halfway point of the near-mythical, now-defunct 285-mile cross-state race, S2S ‘Seattle-to-Spokane’.

Rene Herse's Endurance casing is reinforced for extra sidewall protection and puncture resistance, with little loss to speed or comfort.