User Sam7919 | chat.stackexchange.com

Sam7919

yst 14:20

@Criggie I see. Cool. What infill density is appropriate for a mount (for light, cyclometer, bell)? Specifically, my intuition tells me that 50%, 60%, or 75% would be superior to 100%, as 100% could be too brittle and snap off at a harsh/abrupt landing, whereas 50%, especially if the interior is designed as a truss, would better tolerate shocks.

Sam7919

Mon 20:52

Which one do you use?

Sam7919

Mon 20:52

Now that I got your attention: Can you suggest 3d design software that's not quite as trivial as TinkerCAD, but not quite as overwhelming as Blender (or, gasp, Maya, or 3ds-max)?

Sam7919

Mon 20:51

@Criggie Hello

Sam7919

Mon 20:50

@Michael Hello

Sam7919

Jul 17 20:04

Lol... I see. But why does 'me' need to be plural at all? It would have been "two copies of myself", and not "two copies of myselves". Hence it would likewise be "copies of me" rather than "copies of [mes,me's,"me"s]".

Sam7919

Jul 16 23:35

@gschenk Unable to parse

Sam7919

Jul 15 12:59

Did you try it yet?

Sam7919

Jul 15 12:59

“If you are an athlete in search of a chemical boost your options are limited. Many of the drugs that are known to work—anabolic steroids to make you stronger, say, or erythropoietin to boost your endurance—are banned and come with nasty side-effects. Many legal supplements, on the other hand, seem not to do anything useful.
An exception is creatine, a staple of sports nutrition and one of the few supplements with a solid evidence base behind it. One review paper from 2017 concluded that creatine can give athletes a 10-20% performance boost in brief bouts of high-intensity exercise, such as…

Sam7919

Jul 15 12:59

Excerpt from an article at The Economist:

Sam7919

Jul 14 13:26

@Rеnаud The information at this link look valuable (and authoritative). Thank you!

Sam7919

Jul 13 02:21

Context of these questions: I didn't plan carefully enough with an extra pair of SPD-SL cleats, and rather than wrestle with them tomorrow, I'm thinking of simply switching to SPD pedals on the road bike. Do I have to be conscious that they can separate more easily (and not unclip unless I'm about to stop)?

Sam7919

Jul 13 02:18

And is it the same as what's described in this bicycles.stackexchange.com/q/57122/48599 question?

Sam7919

Jul 13 02:17

What happened today? youtu.be/5gy97mUqFD0?t=76

Sam7919

Jul 13 02:17

Which is it? An accidental release from the pedal can be dangerous — period. Or a(n) (accidental) release followed by touching the ground at speed is dangerous?

Sam7919

Jul 7 01:27

@Criggie The argument there is: they tried to cheat the authorities, ergo, it's not beyond them to try to cheat their customers as well?

Sam7919

Jul 7 01:26

@gschenk That's a good point. The answer is that I don't, particularly not those with a metal bracelet (though I prefer a metal bracelet during the day). Though with a watch's advantages, I'm hoping I'd find some kind of bracelet I'd be able to put up with.

Sam7919

Jul 6 14:47

@Rеnаud I'm turned off from Apple watches because they need recharging daily. Some Garmin watches apparently last 15 days, so there is room to measure HR data overnight. Still, is there anything they can tell us that we don't already know ourselves? I'm looking in particular for "you shouldn't ride today again; the numbers indicate you haven't rested yet" or "you're being lazy; (the numbers make it clear that) it's time to head out."

Sam7919

Jul 5 00:48

@Criggie This doesn't say much. It looks like just a weighted average of the length of your rides, and how hard you pedalled, over the last n days (where n may be 365, or 5 * 365).

Sam7919

Jul 4 21:05

I've done that for several years. Now that I'm using a powermeter, I'm sparing myself the chest strap. Either it's loose and keeps falling down, or it's just ever so slightly tight and I feel that it takes away from the ease with which I can take a full, deep breath.

Sam7919

Jul 4 21:01

@Criggie I wouldn't actually wear the watch while riding. For that a cyclometer is clearly the right tool. I also would be annoyed by a watch on my wrist while riding. I'm looking more for a tracker (HR, "delta-deep sleep", and the mysterious HRV) when I'm not riding.

Sam7919

Jul 4 20:51

Does a sports watch help you manage your exercise regimen? If your body is telling you "I'm still tired from yesterday's ride; stay put", would you listen to a watch that says otherwise? Would a watch accurately detect that you're not yet ready for another workout and kind-of pat you on the back to confirm you're not just being lazy?

Sam7919

Jun 18 16:37

This never made sense in the first place. They design and build bicycles to sustain the weight of a ~120 kg rider. Ok, cool. We can't expect them after all to sell an entire line for cyclists who max out at 80 kg. Now it's very fashionable to use 3D printed saddles. Hypothesis: those are just a lot more plush for lighter riders, and suddenly it's clear why the usual ones are so tough (?). They are again designed to support up to 120 kg riders.

Sam7919

Jun 10 16:05

reddit.com/r/geoguessr/comments/xzhxb4/…

Sam7919

Jun 10 16:01

My federal government doesn't want to interfere. They let each province decide, and so we have this weird system that if you move a car from one province to another, you may find you suddenly need to add, or remove, the front license plates.

Sam7919

Jun 10 16:00

Try to read the license plate numbers from a video taken with a sports camera. We discussed this previously over here. No one seems to succeed in getting a clear reading.

Sam7919

Jun 10 15:59

Who said anything about home addresses? The QR code would simply be a duplication of what's already written, in a more machine-friendly form.

Sam7919

Jun 10 14:39

Suppose one third of each license plate was dedicated to a QR code, would that more easily enable identifying offenders from a cyclist's on-board camera?

Sam7919

Jun 6 21:19

Thinking a lot lately about a nuclear shield. That would stop that monkey from saying we could be his 51st.

Sam7919

Jun 6 21:18

Some of the products from Park Tool's competitors feel like they would survive a nuclear attack. No worries there.

Sam7919

Jun 6 21:16

@Peachy I don't know about this specific product, but I like this brand. When you decide that not all tools in your set have to be blue, you find some remarkable brands out there. Feedback Sports, IceToolz, and Super B are three of many. They just don't have the advertising muscle of PT, and their distribution is sometimes pathetic (such as Super B).

Sam7919

Jun 5 19:59

@Criggie I don't understand. The wheel came with a tubeless rim and a tubeless tire (how kind), but fitted with an inner tube. Are you suggesting that running tubeless with or without inner tube is a bad idea, or do you concur that running an inner tube on a tubeless setup is a bad idea?

Sam7919

Jun 5 19:57

@MaplePanda That's right.

Sam7919

Jun 5 17:49

My next Rule of Thumb: it's a bad idea to use an inner tube if your rim and your tire are both tubeless. If/when you get a flat, it'll be very tricky to reseat the tire on the side of the road. If both are tubeless, you're better off setting up the wheel tubeless. Do you agree?

Sam7919

Jun 5 17:46

(I fixed the tire at home — soapy water, massage, etc.. — and I'm not throwing it away or anything. I'll continue riding it.)

Sam7919

Jun 5 17:45

I'm not saying that the 7 grams at the valve produce a similar rocking sensation, but that eliminating even that lopsided balanced could lead to a more secure, and more enjoyable, ride.

Sam7919

Jun 5 17:44

This tire is now worn more on one side than on the other. I did the best I could with a 16 g CO2 cartridge on a 30mm tire. Luckily it didn't go (much) over the 87 psi that it could handle. But the bead was not properly seated on one side. I had to limp back 50 k before reaching home. The difference was not big. It's almost imperceptible when riding uphill. But downhill and at speed, it's a dangerous rocking motion.

Sam7919

Jun 5 17:42

Sam7919

Jun 5 17:42

@Rеnаud Here is when I started to really think about rolling smoothness — and wheel imbalance.

Sam7919

Jun 5 10:05

@Rеnаud I’m not seeking perfection in wheel balance, just eliminating the obvious flaw. I’ll evaluate again by comparing the stability of the bike at higher speeds. Also, only road bikes get that treatment. As for the tires, whenever I do a cursory round of checking, I see that the valve plummets down like a lead. So at the outset it’s clear it’s the antipodal point that needs weight.

Sam7919

Jun 4 20:45

@gschenk Calvin Jones's asisstant (name?) is the only one who suggests cutting a clean circle and sanding the edge. The others generally slice a cross, and push the rim tape into the hole. What will you do for your 21st wheel-year?

Sam7919

Jun 4 20:43

@gschenk I suspect that's not even going to be one gram, whereas the valve is maybe 7 g.

Sam7919

Jun 4 20:42

@gschenk ok, since you mentioned, I'm looking for the following rule of thumb: If I'm happy with z psi using inner tubes, what pressure should I use after switching to tubeless on the same wheel (rim + tire)?

Sam7919

Jun 4 20:04

@gschenk Good point. Whatever I add needs to be very thin, particularly if the middle channel needs to be occupied by a very snug tire for proper seating.

Sam7919

Jun 4 20:03

@gschenk To improve stability when I'm descending at 50+ kph.

Sam7919

Jun 4 17:41

@Rеnаud Ah, cool. Or at the limit one can improvise a nozzle. Anything to avoid reseating the tire.

Sam7919

Jun 4 17:36

@Rеnаud as well as a syringe, I'm assuming?

Sam7919

Jun 4 17:33

Best of luck

Sam7919

Jun 4 17:33

@Criggie 🤣

Sam7919

Jun 4 17:31

@MaplePanda What reduction in adhesion? I'm thinking of putting self-adhesive lead strips, perhaps covering them with double-sided (adhesive on both sides) foam tape, and finally adding the (adhesive) rim tape. That would make four adhesive layers. They ain't going nowhere.

Sam7919

The Velodrome