Rene Herse 700C x 44 with Endurance Casing

We developed the Endurance casings for our Rene Herse tires based on requests from gravel racers like Ted King (above), who need tires for truly harsh conditions. A race like Dirty Kanza traverses 200 miles of sharp stones in the Flint Hills of Kansas. The lead racers travel at high speeds in densely packed pelotons, unable to see the road ahead – and thus unable to avoid hitting big and sharp rocks. The event becomes a race of attrition. If you flat and are lucky, your plug holds, your CO2 cartridge inflates the tire, and you can chase back on. More likely, you see the peloton vanish into the distance.

It’s for this type of event that we’ve introduced our Endurance casing. It’s a beefed-up version of our renowned Extralight casing: We use the same ultra-thin and ultra-supple threads, but push them closer together to obtain a denser weave. Then we add a puncture protection layer from bead to bead that reinforces not only the tread area against punctures, but also the sidewalls against cuts.

For even tougher conditions, we offer the Endurance Plus casing with thicker threads for even more cut resistance, plus the same puncture protection layer as the Endurance casing. It’s probably overkill for most rides and races, but there are times where you gladly give up a little speed for the peace of mind of not having to think about your tires at all.

We shipped a small quantity of Rene Herse tires with Endurance casings as soon as possible, so racers could use them in Dirty Kanza and other races. This also allowed us to get valuable feedback from the field.

Ted King (leading the pack in the photo above) rode the Hurricane Ridge Endurance Plus to a formidable 8th place in this year’s Dirty Kanza against international competition of professional riders. In the past, the ‘King of Gravel’ had suffered from flats in every edition of this epic race – but not this year.

Others had similar experiences. One customer wrote:

“I used the Steilacoom Endurance tires and had no problems or flats on the DK200 course this year. I did not feel that I had to brake and descend with extra caution, but felt confident to just let them roll. I will now continue to ride these tires, dropping the pressure for added comfort and better rolling resistance, and see where the limits are.”

Another racer commented:

“I would like to let you know on how amazed I was in yesterday’s Dirty Kanza riding your Steilacoom tires with the Endurance casing. Hassle free. No flats, no nothing, all good, and supple riding!”

And:

“Thank you for the expedited shipping so I got the tires in time for the race. You guys are as awesome as your tires…”

The first shipment of Rene Herse tires with Endurance casings sold out almost immediately. We’ve now received another shipment, and all models are back in stock.

We are also introducing two new models, the 700C x 44 mm Snoqualmie Pass Endurance and Endurance Plus with our smooth all-road tread. For dry rides and races where you won’t encounter mud, these tires are a great choice. They complement the knobby 700C x 42 mm Hurricane Ridge to offer a quiver of tires that will handle all conditions. They are ideal not just for racing, but also for adventures where you don’t know what you will encounter.

In addition to our Standard and Extralight tires, we now offer the following tires with Endurance and Endurance Plus casings:

  • 700C x 38 mm Steilacoom knobby (Endurance)
  • 700C x 42 mm Hurricane Ridge knobby (Endurance; Endurance +)
  • 700C x 44 mm Snoqualmie Pass all-road (Endurance; Endurance +)
  • 650B x 48 mm Juniper Ridge knobby (Endurance)

Click here for more information about our Rene Herse tires.

Photo credit: Dustin Michelson/Gravelguru (Photo 1).

About Jan Heine

Spirited rides that zig-zag across mountain ranges. Bicycle Quarterly magazine and its sister company, Rene Herse Cycles, that turns our research into the high-performance components we need for our adventures.
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21 Responses to Rene Herse 700C x 44 with Endurance Casing

  1. singlespeedscott says:

    Still waiting on a knobby version of the Rat Trap Pass Jan😁

  2. I would like something similar for the Rat Trap Pass. I love them, and until recently experienced very few flats. However, this summer, cycle touring in Italy, I had many. Some of them because the valves of the Schwalbe xxlight tubes failed (grrr, never again), but others were actual punctures because the tyres were not robust enough for the conditions (they were not worn).

  3. Frank says:

    Hi Jan.
    Thanks for these tougher tyres.
    I understand that the Endurance Plus has better protection against side wall cuts.
    But for punctures resulting from glass shards and/or bits of wire … is there a difference between the Endurance and Endurance Plus casings? Or are they pretty much the same?
    Best. Frank

    • Jan Heine says:

      For glass shards, both the Endurance and Endurance Plus offer similar protection due to the protection layer in the casing. The strategy here is to prevent the glass from entering the tire until it gets pulverized as the road pounds it with every wheel revolution.

      Steel wires are strong and will work their way through any tire. The only protection is to make the tread so thick that the wires get stuck in the tire without ever reaching the inside. However, that makes the tires heavy and slow.

      If you ride a lot of highway shoulders that are littered with steel wires from exploded truck tires, running your tires tubeless may be a better option. The sealant will close most of the holes caused by these wires. Tire Wipers are also a great option: They brush off the steel wires before they can get embedded in the tire. And of course, when you see fragments of truck tires lying on the shoulder – and if traffic allows – move into the main traffic lane for a few hundred yards to avoid the steel wires that inevitably accompany the shredded tires.

      If you ride on back roads, there is much less debris, and you’ll always be on a surface that is swept clean by the (few) passing cars. I find that we have almost zero flats on the roads we ride now, helped by the fact that wider tires, which run at lower pressures, are much less likely to puncture.

      • Rick Thompson says:

        Any idea if Endurance would help against goatheads? My tubeless Snoqualmie Pass EL are not flatting, but I sure do pull a lot of thorns on some trails. It would be better if they never penetrated the casing.

      • Jan Heine says:

        We haven’t tested them on goatheads. I suspect the puncture protection layer will prevent the goatheads from penetrating the tire, but we’d have to test it to be sure.

      • Stuart Fogg says:

        Thanks for the explanation. Just after reading it I ordered the Endurance model.

    • Lukas Lindh says:

      Hi Jan, first off, thank you for everything you have done for the cycling world. I really enjoy and get motivated by the mix of new technology and revival of old technology and knowledge you and rene herse (compass) team bring to the industry and us riders.

      I’ve had my 700C x 44 mm Snoqualmie Pass Standard for little more than two seasons and eventually the sidewall of the rear tire broke. But I’ve enjoyed them on every possible surface. I mostly commute to work about 20 km one-way with a nice mix of bike lanes, gravel and city streets. Weekend rides are longer and I always look for unbeaten paths.

      I was a bit disappointed about the sidewall breaking after about 5000+ km but maybe that is to be expected enjoying a supple ride? Anyways, for my next pair would you suggest another round of the same pair or take pick it up a notch with the endurance ones? I don’t want to sacrifice the supple ride?

      Might add that I live and ride in Stockholm, Sweden. I guess we have more road salt and colder climate here in general that might impact tyre choice. Though I use studded tyres during winter, though I run my Snoqualmies as long and as early as possible without ending up in a ditch or under a car.

      Best regards,
      Lukas

      • Jan Heine says:

        5000+ kilometers on a high-performance tire isn’t so bad! I’d suggest replacing them with the same tires – it seems like you don’t need the Endurance casing for the rides you do.

  4. Scott Bontz says:

    Does Endurance casing make your tires equivalent with the Panaracer Gravel Kings? They must sacrifice some of that much-touted suppleness if they are to gain durability, no?

    • Jan Heine says:

      The Endurance casing is different from the Gravelkings, but yes, of course, you do give up some performance and comfort with the more resilient casing. That is why we continue to offer our Standard and Extralight casings.

  5. Stuart Fogg says:

    Great addition, thanks!

  6. Reuben says:

    I get it, but I guess I don’t. As a consumer who just wants good 40-45mm tires on my bike, how to justify the pricing over a Schwalbe marathon supreme (for example).

    • Jan Heine says:

      Marathons are totally different tires. Just compare the weight… The Endurance casing still is a true high-performance casing, and the tires roll very fast. Not as fast as our Extralights, of course, but those are in another league.

      The Marathons – in all their iterations – are about flat resistance above everything else. That sounds good at first, but it also makes the tires stiff, slow and heavy. For some rides – especially if you spend a lot of time on the debris-strewn shoulders of busy highways – this makes them a good choice. Most of us prefer riding on lightly trafficked backroads, where a great tire signs on the pavements or floats across the gravel, adding much joy to the ride.

  7. Stuart Fogg says:

    Can you provide a quantitative description of the differences between the Endurance and Endurance Plus casings in rolling resistance and puncture protection? My punctures have all been in the tread area and caused by broken glass.

  8. Brendan says:

    How much of a ride quality difference is there between the Endurance cased tires and your standard casings? Is it minor, or is there huge difference?

  9. thebvo says:

    Cool! When will they be put to the BQ roll down test?

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