Pro racers have been asking us for a semi-slick—a tire that combines the speed of our slicks with the traction of our knobbies. They didn’t want a conventional semi-slick, but the same round profile as our other Rene Herse tires, for predictable cornering grip at all times—whether in a muddy gravel race or during a paved descent with ultra-fast hairpin turns.
So we went about reinventing semi-slick tires. It took three years of R&D and resulted in two patents. The Corkscrew Climb semi-slick is named after the biggest climb of the SBT GRVL race in Steamboat Springs, Colorado. Instead of distinct zones with different tread patterns, the slick tread transitions gradually into the side knobs, for better and more predictable grip as the bike leans into a corner. The first row of knobs is anchored on the center tread to stiffen the knobs for superior traction under ultra-high power. The knobs are arranged with our proprietary noise cancelling technology, making this tire almost eerily quiet for a gravel tire.
The innovations don’t stop there: The radius of the tread is larger than that of the casing the casing—effectively creating a tire that corners like a much-wider tire. This innovation also allows us to make the center tread is thin and supple for ultra-low rolling resistance, while the tall side knobs provide superb traction when the tire sinks into the surface.
Together with our supple casings, the result is a semi-slick tire that’s faster than most slicks on the market. We don’t use the word ‘revolution’ lightly—try these tires yourself and tell us whether you notice the difference!
The Standard casing is our more affordable option: comfortable and fast, yet also strong to withstand considerable abuse. The Extralight casing takes the performance, comfort and feel of your bike to an entirely new level. The Endurance casing is reinforced for extra sidewall protection and puncture resistance, while retaining the speed and comfort for which Rene Herse tires are famous. The Endurance Plus casing provides the ultimate in sidewall protection for extremely tough conditions.
TUBELESS & SEALANT RECOMMENDATIONS:
This tyre is tubeless-compatible, however if running tubeless on Rene Herse tyres we find the extralight casing can be tricky to set up and maintain, but the standard, endurance and endurance plus casings work well. We recommend using Orange Seal sealant. Check out Rene Herse’s guide to setting up tubeless tyres here.
Want to know what pressure to put in your tyres? Rene Herse’s Tyre Pressure Calculator will guide you!
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