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Addiction 2023.4

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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Addiction 2023.4

Old 11-11-23, 11:11 AM
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yikes lol
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Old 11-11-23, 11:15 AM
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Originally Posted by LesterOfPuppets
I put some 2" tyres on 45mm rims once..

RMOT

Well, hey, I mean - that prevents you scuffing your replaceable tires on curbs by making sure you scrape the expensive rims instead.
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Old 11-11-23, 11:18 AM
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Originally Posted by bampilot06
Seriously, we are having this discussion again? Actually I do run 32mm on my emonda, ran them on my cervelo and would put them on my madone if I had clearance. This has been discussed to exhaustion. Evidence has shown wider tires with lower pressure is faster than 23 mm 25 mm tires at higher pressure.
It has been discussed to exhaustion, but often with a lot of nonsense thrown in.

Evidence has shown that a wider tire has lower rolling resistance at the same pressure. This has been known for decades. But reduce the pressure (as one may be forced to do with fat tires), and the rolling resistance goes up.

There is no way to hand wave away the fact that a wider tire has a higher aerodynamic drag. At race speeds, aerodynamic drag is more significant than rolling resistance. Absolutely nobody uses 32 mm tires in time trials, because people are not that gullible.
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Old 11-11-23, 11:21 AM
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Originally Posted by LesterOfPuppets
The minivan's oil light reset is kinda funny, forget exactly what it is but something like turn the key on pump the brake 3 times, put it in N, then back in P, turn the key back off.
The Fit is similar. I watched the mechanic do it once.
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Old 11-11-23, 11:27 AM
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Originally Posted by datlas
Nice. I made roasted Brussels sprouts and pasta with pesto sauce. The basil was from our garden. Bonus Jackie pic too, who says hi to BF friend Stephen….



We are not in the habit of photographing our food, but rather of eating it.
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Old 11-11-23, 11:32 AM
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As terrymorse has indicated, this is a multi-variate situation and fairly complicated. Here is my attempt at simplifying:

1) Rolling Resistance matters (Crr). In most real world road applications, this means that a 28C tire is often faster than a 23 C, even though it is less aero. 25 C offers a nice comprise that many rider chose to deal with varying but generally good quality roads.

2) Matching tire and rim width is showing to be very important, possibly more so than 20 mm of rim depth. So, 28 C on narrow rim = bad. 28 C on wide rim = good, faster than the former

3) Rim depth also matters. How that stacks up to 1) and 2) is course dependent and might require advanced differential equations to truly understand
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Old 11-11-23, 11:36 AM
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It is hard to say how 2) and 3) stack up, and TBH I'm not sure, but all else equal, I bet a 28 C tire on a 25 mm internal rim would be faster than any tire that you'd actually want to run on a 20 mm internal rim at 50 mm deep. I'd put $20 on that terrymorse and bampilot06 .. This is assuming the roads aren't good enough for 23C.

For full disclosure, I have not directly tested or studied this myself, and this is only what I've been taught from teammates in ITT / TTT that are faster than me.
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Old 11-11-23, 11:40 AM
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Good lord, the Trojans vs Ducks doesn't start til 8:30!!!

Might need a little disco nap around dinner time.

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Old 11-11-23, 12:56 PM
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Originally Posted by Mojo31
True, but you could make some really good friends in the service department.

Still think I’d get the Alpha.
Smog rules have forced reliability into the drive train of internal combustion engines. I spent about 5 years working on engine controls for commercial diesel engines. By 2020 we had to demonstrate that an engine which was being maintained according to standards would still pass smog rules after 7,000 hours. What is that in miles? 250,000 or so?

And I think that for automobiles there is a requirement that an engine has to go 80,000 miles with maintenance only and still pass a smog check.

Similar rules for the EU, so that Alfa needs to be a whole lot more reliable than anything from before 2010.
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Old 11-11-23, 12:59 PM
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Originally Posted by Velo Vol
We got "rain." 0.02 inches.
0.6” overnight
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Old 11-11-23, 01:08 PM
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Originally Posted by terrymorse
It has been discussed to exhaustion, but often with a lot of nonsense thrown in.

Evidence has shown that a wider tire has lower rolling resistance at the same pressure. This has been known for decades. But reduce the pressure (as one may be forced to do with fat tires), and the rolling resistance goes up.

There is no way to hand wave away the fact that a wider tire has a higher aerodynamic drag. At race speeds, aerodynamic drag is more significant than rolling resistance. Absolutely nobody uses 32 mm tires in time trials, because people are not that gullible.

Who said anything about time trials?
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Old 11-11-23, 01:10 PM
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Originally Posted by TMonk
I turn 37 today! Wild. Been in my best shape the past 4 years. Losing 10 lbs had a lot to do with that.
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Old 11-11-23, 01:10 PM
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Originally Posted by rjones28
Compact SUV.
When my mom drove back from Canada she said that in PA a truck merged into her lane with her there and the damage looked like that, around the rear wheel.
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Originally Posted by Velo Vol
People here don't get it.
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Old 11-11-23, 01:12 PM
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Originally Posted by seedsbelize2
We are not in the habit of photographing our food, but rather of eating it.
You'll never be an Instagram influencer with that attitude.
Originally Posted by seedsbelize2
0.6” overnight
How do they even measure one hundredth an inch of rain?
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Originally Posted by Velo Vol
People here don't get it.
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Old 11-11-23, 01:15 PM
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Originally Posted by datlas
We are riding out to Gap today.
RMOT. Raise your hands if you've been there.


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Originally Posted by Velo Vol
People here don't get it.
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Old 11-11-23, 01:18 PM
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Originally Posted by Velo Vol
You'll never be an Instagram influencer with that attitude.

How do they even measure one hundredth an inch of rain?
I measure tenths with my rain gage. Hundredths I couldn’t say.
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Old 11-11-23, 01:27 PM
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Originally Posted by Velo Vol
When my mom drove back from Canada she said that in PA a truck merged into her lane with her there and the damage looked like that, around the rear wheel.
A lot of times a car getting sideswiped by a truck results in tyre marks primarily, cuz the car will just be sitting back there hiding out by the truck's or trailer's wheels.

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Old 11-11-23, 01:28 PM
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that'll buff right out
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Old 11-11-23, 01:31 PM
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Upon further pondering, I realized my comment about the expats and snowbirds might have been a hair harsh. As a result of said pondering, I have decided to take the sage advice of my old buddy, Timothy Leary, and get myself a membership with that library. Mix it up with those folk. The thing about expat communities is that one is thrown into groupings of people they would never cross paths with irl. In my case that is almost anyone who had a career, kids, a mortgage, etc., in their former life, and is all about their grandkids now. Gag me.
With me luck; I’ll need it.
I will not, however, attend the third birthday party of the grandkid of our friends in a village ten miles away, tomorrow. I have my limits.

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Old 11-11-23, 01:38 PM
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Originally Posted by Velo Vol
RMOT. Raise your hands if you've been there.


Is that in Maryland? Prolly been there
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Old 11-11-23, 01:39 PM
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Originally Posted by seedsbelize2
Upon further pondering, I realized my comment about the expats and snowbirds might have been a hair harsh. As a result of said pondering, I have decided to take the sage advice of my old buddy, Timothy Leary, and get myself a membership with that library. Mix it up with those folk. The thing about expat communities is that one is thrown into groupings of people they would never cross paths with irl. In my case that is almost anyone who had a career, kids, a mortgage, etc., in their former life, and is all about their grandkids now. Gag me.
With me luck; I’ll need it.
I think your experience and perspective can be of some value to those who chose to follow the prototypical "American Dream" and chase the things you avoided. It might be later than is ideal, but hey better late than never.

Also you were friends with Timothy Leary? Like the LSD guru? Woah, man.
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Old 11-11-23, 01:39 PM
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Originally Posted by Velo Vol
RMOT. Raise your hands if you've been there.



RMOT
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Old 11-11-23, 01:40 PM
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Originally Posted by Velo Vol
You'll never be an Instagram influencer with that attitude.

How do they even measure one hundredth an inch of rain?
The easiest way is to have a collector that has a surface area of 100 <units> that funnels down to a measuring cylinder with a surface area of 1<unit>. The funnel has to have a very low surface tension, but it does work.

In a product I worked on we used an electronic counter to measure down to 1/100th of an inch of rain. It had the funnel which fed into a small collector that would tip over when it held a volume that indicated 1/100th of an inch of rain. When it tipped, it triggered a counter. When it emptied it would return to the original position. Might slightly under count very heavy rainfall, but very accurate for normal conditions.

https://en.wikipedia.org/wiki/Rain_gauge

https://www.weathershack.com/static/...ain-gauge.html
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Old 11-11-23, 01:41 PM
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Originally Posted by bampilot06
Who said anything about time trials?
Though it may not be obvious to some, the same tire rolling resistance and wheel aero drag exist in a road race, time trial, or speedy ride around the neighborhood.

The need to reduce losses is simply more urgent in a time trial.
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Old 11-11-23, 01:41 PM
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Originally Posted by phrantic09
Stockade-athon?
Yep.
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