Rene Herse Extralight... tubeless?

I have run various casing versions of Rene Herse Snoqualmie, Hurricane Ridge, Bon Jon and Barlow for several years. These are on Enve G23 and Hunt 35 wheels. Always tubeless. I ride 8,000 to 10,000 miles per year in mixed road and gravel. Never had a blow off. 

I have shredded several tires with road debris - nails, screws, glass, metal scraps, etc. In all cases the tires would have gone flat with or without tubes. However, I have had many small cuts from rocks (sidewalls), glass and nails when the tires did not flat - either the sealant or a plug did it’s job. 

that said, it was a learning process to get consistent reliability. 

shiggy wrote:

Velocity rims? Stick with tubes. The Internal sidewall depth is too shallow. Tires blow off and it’s not a tire issue.

FrankTheTank wrote:

I have used them tubeless with MTB tires and have had no trouble at all. Options are pretty limited for rim-brake-compatible reasonably-wide, tubeless rims, the Quills seem to be the best I can do.

I used mtb tires tubeless on Velocity rims, too.
Had several different 38-42mm tires (not Rene Herse) blow off. One at 20psi while installing. Still using the same tire on a DT Swiss rim with ZERO problems. 
The outer diameter of the DT is 4mm larger, as measured with the rims stacked together. 

The RH tires need rims with a G-height of 5.2-6.2mm, which is the ISO spec. The Velocity was just 4mm.
https://www.renehersecycles.com/wp-content/uploads/2020/06/Tire_Instructions2020_0615_for-Web.pdf

FrankTheTank wrote:CrankShaft, what sealant do you use with the RH tires?

CrankShaft wrote:

I have always used Stan’s regular. No real reason, other than it has always worked for me. I’ve been using it for about 8 years when I first switched to tubeless on my fat bike. 

Spreader wrote:I have to ask, what’s the purpose of spending all that cash then? Same rolling resistance, same weight…increased puncture resistance?

I’ve had the exact opposite experience with my extra light Snoqualamies. Set up fine with a a little blast from the air tank and minimal sidewall seepage. Used orange seal or Stan’s. With the stans I always add some coarse ground black pepper to help it seal punctures better. I’ve ridden those things on just about everything and never really had an issue. Except for paved roads where the are extremely susceptible to glass or metal shards. I’m heavy but I try to ride light and don’t overcommit on gnarly stuff. I really loved those tires. Planning to go up the 48mm in the summer. Can’t decide between the 48 slick or knobby. 

For you RH hurricane ridge 700x42 knobby riders, I have been riding the WTB Resolutes all fall and winter. They measure a bit wider and weigh 5 grams less than the RH and cost $60 per tire. One of the easiest to set up up tubeless and most set and forget tires I’ve ever installed, wet or dry conditions. Be sure to get the OG Resolutes not the new SG ones with flat protective belt. 

mollydespondent wrote:Went back to tubes. Miss the feel, but not the mess and hassle.

stu wrote:You might try Schwalbe Aerothan tubes.  They're very light, I think just 61 g.

stu wrote:I've never ridden tubeless so I can't comment on the magic.

as for pressure, I pretty much ride 44mm slicks on the road these days. 40 psi max on pavement. Usually 34-36. Barely noticeable speed difference between that and my 25mm tires and my road bike at 95psi. Expect it is WAY more comfortable. (My road bike doesn’t get much love anymore). 

stu wrote:Were the blow-offs both with Barlow Pass?  If I remember correctly the Snoqualmie Pass was designed to run tubeless from the start.

Long after the Barlow Pass appeared RH added a 60 psi limit to all of their tires when running tubeless.

Xenophon wrote:Both with the Barlow pass, yes.  The static blow-off happened at 3.8 bar (about 55 psi, the rim rating for a tire of that dia was the limiting factor for that selection, not the raing on the tire).  I don't have a precise value for pressure when it blew off while riding but used to keep 'm between 2.2 and 2.5 bar (32-36 psi).

Xenophon wrote:

Both with the Barlow pass, yes.  The static blow-off happened at 3.8 bar (about 55 psi, the rim rating for a tire of that dia was the limiting factor for that selection, not the raing on the tire).  I don't have a precise value for pressure when it blew off while riding but used to keep 'm between 2.2 and 2.5 bar (32-36 psi).

After that, the confidence was gone.  I've been on WTB since then, a lot less plushy but solid.