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Search: Posts Made By: HTupolev
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Forum: Road Cycling
10-21-22, 06:29 PM
Replies: 93
Views: 3,280
Posted By HTupolev

What assumptions are being made by the calculator...

What assumptions are being made by the calculator as far as rolling resistance and aerodynamic profile?

Based on GhostRider62's claimed CdA, 30mph at sub-300W should be very doable in reasonable...
10-20-22, 08:59 PM
Replies: 11
Views: 562
Posted By HTupolev

I don't use it personally*, but I have several...

I don't use it personally*, but I have several friends who use a 16-tooth or 17-tooth front difference with an RX400 or RX810 rear derailleur and an 11-40 or 11-42 cassette. It's a common approach in...
10-11-22, 11:07 PM
Replies: 41
Views: 1,156
Posted By HTupolev

Why are your non-cycling shorts so short?

Why are your non-cycling shorts so short?
10-04-22, 08:03 PM
Replies: 24
Views: 736
Posted By HTupolev

Some people are alarmingly oblivious to the...

Some people are alarmingly oblivious to the agonized desperate cries from their bicycles, but no, it's not just you. I think most people would frame it the other way, though: a smooth-running bicycle...
09-13-22, 11:42 PM
Replies: 112
Views: 2,470
Posted By HTupolev

Only if you keep Strava running the whole time.

Only if you keep Strava running the whole time.
08-21-22, 10:30 PM
Replies: 16
Views: 688
Posted By HTupolev

If you're specifically looking for knobbies,...

If you're specifically looking for knobbies, there really aren't a lot of options. CX tubulars are a pretty niche market, and 33mm is the norm. You might look at FMB: some of their CX knobbies are...
08-19-22, 02:12 PM
Replies: 13
Views: 12,018
Posted By HTupolev

Somewhat, although it's unlikely to shift as well...

Somewhat, although it's unlikely to shift as well as the 812 in that case. I actually know a guy who was using an 11-46 cassette with the 810 on a 2x drivetrain, but it was really straining the...
08-08-22, 04:56 PM
Replies: 1,390
Views: 46,625
Posted By HTupolev

Why do you think that people buying high-end...

Why do you think that people buying high-end bikes aren't okay with spending one or two thousand dollars for an extra mph?
08-07-22, 07:42 PM
Replies: 16
Views: 521
Posted By HTupolev

Hold on a second. Are you literally claiming that...

Hold on a second. Are you literally claiming that all of the brands that sell tires from Panaracer - such as Soma, Fairweather, Simworks, Swifttire, or Rene Herse - are using Panaracer as a...
Forum: Road Cycling
08-03-22, 12:33 PM
Replies: 12
Views: 394
Posted By HTupolev

If you have the bicycle, you're in a far better...

If you have the bicycle, you're in a far better position than any of us to check if the clearances are adequate. A 28mm tire is going to add around 1.5mm to either side and 3mm above, compared with...
Forum: Road Cycling
08-02-22, 04:27 PM
Replies: 27
Views: 992
Posted By HTupolev

Rene Herse slicks with the Extralight casing.

Rene Herse slicks with the Extralight casing.
Forum: Road Cycling
08-02-22, 02:58 PM
Replies: 27
Views: 992
Posted By HTupolev

Depends on how slow the slow tires are. My...

Depends on how slow the slow tires are.

My gravel bike which runs 2.1" performance-oriented slicks trends a few percent slower on the road than my skinny-tired road bikes.

How much slowness is...
07-31-22, 02:41 PM
Replies: 16
Views: 521
Posted By HTupolev

Panaracer is a tire manufacturer, and Soma's...

Panaracer is a tire manufacturer, and Soma's tires (and many other small brands) are manufactured by Panaracer. They are not rebranded Chaoyang tires.


I combed through their catalog, and it...
07-29-22, 01:07 PM
Replies: 1,390
Views: 46,625
Posted By HTupolev

I brought it up and he denied its relevance....

I brought it up and he denied its relevance. People it doesn't affect tend to struggle to understand the way it impacts road fits (and why TT/Tri fits are nearly-ubiquitous in using forward saddle...
07-28-22, 06:40 PM
Replies: 35
Views: 905
Posted By HTupolev

This isn't a Walmart bike, and hookless was the...

This isn't a Walmart bike, and hookless was the clincher norm for a very long time until hooks started to take over during the 1970s.
Forum: Road Cycling
07-24-22, 07:28 PM
Replies: 4
Views: 439
Posted By HTupolev

If we're talking about flat-ground cruising...

If we're talking about flat-ground cruising speeds, you're probably off by a factor of at least a thousand. And the real number might realistically be a few thousand per wheel, depending on various...
07-24-22, 12:19 PM
Replies: 119
Views: 3,093
Posted By HTupolev

For long rides? Yes, but I also wouldn't skip the...

For long rides? Yes, but I also wouldn't skip the chamois.
Forum: Road Cycling
07-23-22, 11:37 PM
Replies: 67
Views: 2,703
Posted By HTupolev

Is that because you're pedaling harder, or...

Is that because you're pedaling harder, or because you're better at mountain biking?
Forum: Road Cycling
07-23-22, 01:31 AM
Replies: 17
Views: 498
Posted By HTupolev

If you're expecting the narrow option to preclude...

If you're expecting the narrow option to preclude comfortable pressure choice on the roads you'll be riding, the wider choice may well be faster.
07-20-22, 02:35 PM
Replies: 94
Views: 3,018
Posted By HTupolev

We're not prioritizing anything in particular....

We're not prioritizing anything in particular. We're saying that the wheels you're talking about aren't particularly high on the cost spectrum and end up having trade-off balances in strength,...
07-19-22, 11:26 PM
Replies: 94
Views: 3,018
Posted By HTupolev

Gravel, although depending on use case there's...

Gravel, although depending on use case there's not always a need to differentiate.


I was using "superlight" a little frivolously. Relatively few rim-brake 26er wheelsets made today are very...
07-19-22, 02:57 PM
Replies: 94
Views: 3,018
Posted By HTupolev

Aero factors don't require any particular speed...

Aero factors don't require any particular speed to come into play, and I go 20+ pedaling on my drop-bar conversion quite frequently, especially when it's on paved roads. When I go on mixed-surface...
07-19-22, 01:12 PM
Replies: 94
Views: 3,018
Posted By HTupolev

What do you mean? Why wouldn't aero be a useful...

What do you mean? Why wouldn't aero be a useful aspect of a high end gravel wheel?
07-19-22, 11:39 AM
Replies: 94
Views: 3,018
Posted By HTupolev

Not sure I'd agree there. There are a number of...

Not sure I'd agree there. There are a number of choices that are *fine*, but they're neither superlight nor particularly aerodynamic. And truly new designs are very thin: there are only a couple...
07-18-22, 11:57 PM
Replies: 94
Views: 3,018
Posted By HTupolev

Salsa may have helped revitalize flared drops,...

Salsa may have helped revitalize flared drops, but they've been the norm for most of the history of drop handlebars.


That explains a small amount of flare. When a bar goes beyond that into...
07-15-22, 07:53 PM
Replies: 1,390
Views: 46,625
Posted By HTupolev

No they don't. Typical TT bike fits increase...

No they don't. Typical TT bike fits increase tolerable lowness by rotating the whole rider forward, including putting the saddle much farther forward than on a road fit for the same rider. One major...
07-15-22, 12:46 AM
Replies: 19
Views: 448
Posted By HTupolev

Middle ring looks like it might be mounted...

Middle ring looks like it might be mounted backwards. Usually a bevel just below the teeth should face inboard. Having it reversed could widen the gap between the teeth on the middle and big rings,...
07-14-22, 11:07 PM
Replies: 1,390
Views: 46,625
Posted By HTupolev

For the vast majority of riders, I think this is...

For the vast majority of riders, I think this is a false premise. Even among slim and fit roadies, most choose fits that don't involve flipping and slamming the front-end fit to its limits. And if...
07-14-22, 08:58 PM
Replies: 1,390
Views: 46,625
Posted By HTupolev

Overweight has little to do with it. For most...

Overweight has little to do with it. For most people, the bottleneck for angle between torso and legs is flexibility, not belly obstruction. In fact that's probably true for Robbie, since otherwise...
07-14-22, 08:29 PM
Replies: 94
Views: 3,018
Posted By HTupolev

Starting from an old MTB is usually driven by...

Starting from an old MTB is usually driven by convenience and/or economy. They're used because they can often be found cheap, are versatile as a base to built from, and often already have a lot of...
07-14-22, 03:34 PM
Replies: 92
Views: 2,795
Posted By HTupolev

I suspect this is the case for a lot of fast...

I suspect this is the case for a lot of fast stuff, road hum with supple tires being another example.
07-14-22, 12:24 AM
Replies: 147
Views: 3,574
Posted By HTupolev

Triples were around in the 1800s, so I would...

Triples were around in the 1800s, so I would guess that the number of people touring on 10-speed drivetrains prior to their invention was fairly small.


People making small frequently shifts...
07-08-22, 06:31 PM
Replies: 12
Views: 369
Posted By HTupolev

They can be, but narrow-wide chainrings are in...

They can be, but narrow-wide chainrings are in general 1x-specific. The narrow-wide profile is specifically intended to prevent the chain from derailing, which obviously is problematic if you're...
07-08-22, 04:50 PM
Replies: 18
Views: 586
Posted By HTupolev

From the OP telling us in post #4 that their FTP...

From the OP telling us in post #4 that their FTP is 305W.


Depends on their bike+rider weight and the climbs they're doing. We know that the OP is badly bottomed out even with a 1:1 low gear.
07-08-22, 03:23 PM
Replies: 18
Views: 586
Posted By HTupolev

Given that the OP has a >300W FTP, they probably...

Given that the OP has a >300W FTP, they probably will miss the top-end if this is being used in a mixed-surface capacity. There's even a fair chance that they have use for another gear or two higher....
07-07-22, 10:39 PM
Replies: 1,390
Views: 46,625
Posted By HTupolev

Correct, but "most people" is indeed most people,...

Correct, but "most people" is indeed most people, which is why "most people" are dismissive of your geometry opinions. High-level racers who ride with super-low back angles are usually putting down...
07-07-22, 10:28 PM
Replies: 88
Views: 3,078
Posted By HTupolev

Depends on how big the performance difference is,...

Depends on how big the performance difference is, what your setup is like, the particular geometry of the hybrid, and what sort of fit the rider would require from a performance-oriented build.
...
Forum: Road Cycling
07-07-22, 12:09 AM
Replies: 49
Views: 1,191
Posted By HTupolev

Seypat's comment about "big cogs", plus the...

Seypat's comment about "big cogs", plus the reference to weight, made it sound like they were referring to what their bottom-end gears were worth on a climb.


Yeah, the comment referred to a...
Forum: Road Cycling
07-06-22, 11:35 PM
Replies: 28
Views: 1,172
Posted By HTupolev

When there's something wrong with them that's not...

When there's something wrong with them that's not convenient to deal with.

A couple years ago, the soles on my MTB shoes started separating from the main body of the shoe. So I reattached them...
Forum: Road Cycling
07-06-22, 11:05 PM
Replies: 49
Views: 1,191
Posted By HTupolev

It makes sense as a very rough approximation...

It makes sense as a very rough approximation across some common road cassette sizes.

200 pounds, plus say 20 pounds of bicycle, means that a ten pound difference is something like 230 vs 220....
07-06-22, 10:33 PM
Replies: 27
Views: 909
Posted By HTupolev

In order thread nuts onto an axle, it needs to...

In order thread nuts onto an axle, it needs to protrude significantly beyond the outboard faces of the dropouts. Axles intended to be used with quick-release skewers generally don't do this, because...
07-06-22, 10:25 PM
Replies: 357
Views: 5,380
Posted By HTupolev

Unless you're always filling your tires with pure...

Unless you're always filling your tires with pure CO2 instead of air, the Ideal Gas Law is going to approximate the scenario we're talking about quite closely. And even for pure CO2 it won't be...
07-06-22, 10:00 PM
Replies: 357
Views: 5,380
Posted By HTupolev

It's really hard to give a simple answer because...

It's really hard to give a simple answer because it depends on all parts of the system. Inner tubes and bead hooks both increase the safety margin against blow-offs, although of course this can be...
07-06-22, 01:26 PM
Replies: 357
Views: 5,380
Posted By HTupolev

No, "inference" generally implies that nontrivial...

No, "inference" generally implies that nontrivial logical steps were taken to reach a conclusion. That's not the case here.
07-06-22, 01:20 PM
Replies: 357
Views: 5,380
Posted By HTupolev

I'm not "moving goal posts", you just didn't read...

I'm not "moving goal posts", you just didn't read the prior conversation. I assumed that he meant 23mm or less because that's literally what he was writing in reference to.
07-06-22, 01:11 PM
Replies: 357
Views: 5,380
Posted By HTupolev

What are you talking about? I didn't "infer"...

What are you talking about? I didn't "infer" anything. Larry was directly objecting to icemilkcoffee's claim that TdF riders were going bigger than 23s:

​​​​​​This isn't true, you cant trust...
07-06-22, 12:49 PM
Replies: 357
Views: 5,380
Posted By HTupolev

Yes, I know. Larry seems to be implying that...

Yes, I know. Larry seems to be implying that they're going narrower than that.
07-06-22, 12:45 PM
Replies: 357
Views: 5,380
Posted By HTupolev

Sure, but we're speaking contextually: Larry is...

Sure, but we're speaking contextually: Larry is suggesting that the tires they're using are narrower than what they're claimed to be using.
07-06-22, 12:42 PM
Replies: 357
Views: 5,380
Posted By HTupolev

Their equipment is visible in plain sight. You're...

Their equipment is visible in plain sight. You're claiming that commentators, support staff, racers, and basically the entire French public are part of a conspiracy being controlled by, I guess,...
07-06-22, 12:14 PM
Replies: 357
Views: 5,380
Posted By HTupolev

You don't need to pump to such high pressures,...

You don't need to pump to such high pressures, and there extreme stresses at the contact patch are distributed over more area, which is good for both durability and wear life.


Spring rate...
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