3/22/22 9:25 AM

From Rene Herse

https://www.renehersecycles.com/tire-pressure-calculator-intro/?utm_source=Retail+Customer+Newsletter&utm_campaign=8f2b94defe-EMAIL_CAMPAIGN_2017_11_29_COPY_01&utm_medium=email&utm_term=0_f74fbd5ca8-8f2b94defe-108703741&mc_cid=8f2b94defe&mc_eid=1124689c2b


It must be right, since I'm pretty much on the money with my road and gravel bikes.

3/22/22 10:00 AM

I keep my 28mm tires right in the recommended zone, and they're quite comfy, thanks.

3/22/22 11:45 AM

Back in my racing days I'd pump my Conti Sprinters up to whatever they could take...160psi maybe. There was no reason other than they felt fast. Likely untrue, but psychologically there may have been an advantage.

As of now, it seems I am also in line with my pressure and the recommendations.

3/23/22 8:14 AM

This is the most accurate pressure calculator I've seen, based on the pressures I've settled on over the years. Most others err on the higher pressure side.

While I understand their logic behind not using less pressure in the front, I don't agree with it. I spend WAY more time just rolling along than I do braking hard, so I'll continue to run my front tire at a lower pressure than the rear (70/80 f/r with 25mm tires, in my case). Under normal light braking, the weight shift is not a concern and under hard braking, it's only a concern if you hit something (pothole, curb, etc.) at the same time. Sure it happens, but very rarely for me; it's probably been more than a decade since I last dented a front rim.

That said, I do keep my tires closer to the same pressure off-road, since the front tire frequently has to absorb significant impacts, often while braking.

3/23/22 8:59 AM

About front/rear tire pressure: Probably more of an issue if you choose the low (comfort) pressure than if you choose the higher range. If you're running as low as recommended and you brake hard or bank a turn at the limit, a few psi in the front could be significant even leading to a side wall collapse. My experience is to run the higher pressure choice due to the risk of pinch flats. That said, the calculator suggests what I have been running for the last decade or so. Jan Heine (and company) knows what he's talking about.

3/24/22 9:23 AM

Just run tubulars...no worries about pinch flats :-D

3/24/22 10:06 AM

Just flats... Hense my move to tubulars with tubeless tech.

I've pinched once on road bike/riding in my enTire rolling life. And it was a double 'snake bite' variety too.

Thanks for not calling out shit issue...

3/25/22 8:55 AM

quote:

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Just run tubulars...no worries about pinch flats :-D

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3/25/22 2:12 PM

"did that for 30 years"

Alas, a whole new game flatting on tubeless tubulars, which does not include [usually] putting on a new tire on the road. And being I don't carry a spare, never...

I do carry a 2 oz stans bottle and a kit with valve core tool, mini plug kit etc...

3/25/22 3:18 PM

With wider tires, I almost never have flats anyway. Actually have found tubeless to be more of a PITA as the seal eventually breaks and needs to be refreshed. With the ride quality of wider, supple clinchers, I have no need for tubulars. The narrowest tires I now use are 32, with supple Rene Herse tires at that width my preference is tubes. In the very unlikely event I have a flat, it’s easily to fix (unlike tubeless). Just my $.02.

3/25/22 3:21 PM

"I now use are 32, with supple Rene Herse tires"

And you are getting good flat resistance with these?

3/25/22 4:03 PM

I actually don’t recall having a flat on them (which doesn’t mean I haven’t had one). I don’t put big miles on them. I more often ride the Checkpoint with 40 mm tubeless, and I’ve had to screw around with those a couple times due to the rim bead breaking. I’d rather change a tube.

I’m not saying one is better than the other, just that with wider, low pressure tires I think flats are a de minimus problem.

Cross threading, in another thread Kerry said Jan Heine knows what he’s talking about, and I agree, and my latest purchase from Rene Herse is a mini pump about the size of a fountain pen which Jan says works great. We’ll see (or not….)

3/25/22 5:23 PM

I for one wanna hear about your test pump with the cigar pump. 80 PSi test pump report please. ;)

*Max. inflation pressure: 10 bar (142 psi)

How may strokes I wunda...

I did not get the impression you said, nor was getting at a comparison betwixt the tires, just how the supple babies were.

4/9/22 2:24 PM

Another episode of my tubeless tire not holding air. Didn’t strand me but a PITA. Pretty sure I fixed it by refreshing Stan’s, not hard, but something I don’t have to do with tubes. Do you guys who use Stan’s refresh every 3-6 months as they suggest?

Spark, tested the mini pump and it goes to 60 psi pretty easily, which is all I need. Lots of strokes but the strokes are quick and easy. Someone else will have to test 80 for you…:)

4/9/22 4:27 PM

Yes, I refresh it typically a couple of times per year.