PLP and Virtual Coffee Outside
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Thanks for this post. I like Russ and his channel, bingeing when work is slow. I wish I knew about that Zoom session, I might’ve joined
@drevil 199665 wrote:
Thanks for this post. I like Russ and his channel, bingeing when work is slow. I wish I knew about that Zoom session, I might’ve joined
Absolutely! He had just created a Zoom account, and floated today’s meetup as a trial balloon to see how it would go and what kind of interest he’d get. I only received the invite last night. Based on a great conversation, there will definitely be more to come; I’ll try to spread the word. It was really fun talking to them in person.
Yeah, lots of great content to fill time, and keep on in the background while teleworking
Down the rabbit hole….. A couple tidbits from today’s livestream with Josh Poertner, tire nerd extraordinaire. Josh serves pro athletes and teams and spends a lot of time deflating their tires
Want to pick tires based on their rolling resistance? This site has all the data, collected through actual testing.
How do your favorite tires rate? https://www.bicyclerollingresistance.com/Want to know the perfect tire pressure for you and your bike setup? (Hint: Pumping up the tire to the specs written on the sidewall is the wrong answer.) Silca’s Professional Pressure Calculator uses an algorithm validated by what worked for riders in the Paris-Roubaix and Dirty Kanza.
Try it yourself: https://info.silca.cc/silca-professional-pressure-calculatorDid you know the C in 700c stands for “crochet” or hook? Want an explanation of hooked vs. hookless rims, and what the future holds there? What does “supple” really mean?
Watch today’s recording: https://youtu.be/WDgE8jXuk2U@ginacico 199906 wrote:
Down the rabbit hole….. A couple tidbits from today’s livestream with Josh Poertner, tire nerd extraordinaire. Josh serves pro athletes and teams and spends a lot of time deflating their tires
Want to know the perfect tire pressure for you and your bike setup? (Hint: Pumping up the tire to the specs written on the sidewall is the wrong answer.) Silca’s Professional Pressure Calculator uses an algorithm validated by what worked for riders in the Paris-Roubaix and Dirty Kanza.
Try it yourself: https://info.silca.cc/silca-professional-pressure-calculatorNo option above 65 mm width.
@consularrider 199916 wrote:
No option above 65 mm width.
The reply I received: “Most of their data points are from the World Tour road teams. For wider tires maybe try to find a resource from the mtb world.”
@consularrider 199916 wrote:
No option above 65 mm width.
@ginacico 199923 wrote:
The reply I received: “Most of their data points are from the World Tour road teams. For wider tires maybe try to find a resource from the mtb world.”
Ha, are you kidding Consular? As a fellow fat biker, we know that there are three pressures:
1. Draggy
2. Bouncy
3. Just rightThat last one is a window of .5psi at any point
Not sure if you know who Mike Curiak is, but he wote up how he was running below 2 psi (but maybe more than 1 psi) on 5″ wide tires
He’s a great bike adventurer, photographer, and writer: https://lacemine29.blogspot.com/2019/02/testing-one-two-three.html
@ginacico 199906 wrote:
Down the rabbit hole….. A couple tidbits from today’s livestream with Josh Poertner, tire nerd extraordinaire. Josh serves pro athletes and teams and spends a lot of time deflating their tires
Want to know the perfect tire pressure for you and your bike setup? (Hint: Pumping up the tire to the specs written on the sidewall is the wrong answer.) Silca’s Professional Pressure Calculator uses an algorithm validated by what worked for riders in the Paris-Roubaix and Dirty Kanza.
Try it yourself: https://info.silca.cc/silca-professional-pressure-calculatorInteresting! Recommended tire pressures are well below what Schwalbe recommends! Very close to what I ran at the Garage Races on that polished concrete. Disclosure- I run Schwalbe Marathons on both the Trek 412 and Das Kettler. Don’t know how that fat anti-puncture layer affects their stability, though when I ran Conti PLUS tires on the Trek, they were *extremely unhappy* at even slightly reduced pressures.
@Starduster 199993 wrote:
Interesting! Recommended tire pressures are well below what Schwalbe recommends!
Exactly!
The “recommended” tire pressure printed on the sidewall of every tire is actually something else.
Watch Your TIRES are LYING to YOU! for the truth about what those numbers mean (the real info starts at about 1:30) and you’ll never strain your eyesight looking for them again.
TLDR: The numbers on the sidewall are a legal requirement based on standards testing, not a recommendation based on performance or comfort. People often assume inflating tires at the upper end of that range will make them faster. But as it bears out, deflating your tires to the point they are giving you a smooth ride will actually increase your performance.
To dial in the pressure that works for you, on your bike, with your chosen tires, on the terrain you like to ride, takes a little research. “Seek smoothness.”
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