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Search: Posts Made By: HTupolev
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Forum: Road Cycling
09-21-20, 02:56 PM
Replies: 86
Views: 1,681
Posted By HTupolev

Derailleur hangers are supposed to bend or break...

Derailleur hangers are supposed to bend or break to protect the derailleur and the frame. Brake levers are supposed to rotate to protect the brake levers. What you're describing aren't "durability...
09-21-20, 01:49 PM
Replies: 7
Views: 209
Posted By HTupolev

The lack of drivetrain stuff on the non-drive...

The lack of drivetrain stuff on the non-drive side means that the crank arm is able to sit closer, doing this is a way to reduce q-factor. If it's not bothering you, it's not something that needs to...
Forum: Road Cycling
09-19-20, 02:52 PM
Replies: 42
Views: 1,393
Posted By HTupolev

High PSI reduces the amount of energy lost due to...

High PSI reduces the amount of energy lost due to the tire deforming against the road surface. But, if the tire is pumped stiff to where it's transmitting surface irregularities to the bike and rider...
Forum: Road Cycling
09-19-20, 12:06 AM
Replies: 19
Views: 880
Posted By HTupolev

I like the Topeak RaceRocket HP. It's very small...

I like the Topeak RaceRocket HP. It's very small and lightweight (I weighed mine at ~87g). It's got a pretty narrow cylinder that allows decently high pressures, and although this means that it takes...
Forum: Road Cycling
09-18-20, 01:00 PM
Replies: 125
Views: 2,954
Posted By HTupolev

But that's not how people actually ride. If I...

But that's not how people actually ride. If I have a bicycle that's significantly faster than another, I'll tend to ride faster and/or choose longer routes on it.
Forum: Road Cycling
09-18-20, 11:37 AM
Replies: 125
Views: 2,954
Posted By HTupolev

Pretty much everybody taking a training plan...

Pretty much everybody taking a training plan seriously rides a certain amount of time at certain intensities. A faster bike doesn't make it easier, you just go faster (and farther).

Even outside...
Forum: Road Cycling
09-18-20, 11:30 AM
Replies: 302
Views: 13,103
Posted By HTupolev

Some things can be. Rolling resistance can be...

Some things can be. Rolling resistance can be measured. The amount of time that you spend on the side of the road fixing a flat can be measured.
09-18-20, 01:51 AM
Replies: 17
Views: 443
Posted By HTupolev

It's theoretically sort of a "downgrade", but...

It's theoretically sort of a "downgrade", but Sora R3030 or Microshift SB-R493 3x9 shifter sets should be compatible with your drivetrain.
Forum: Road Cycling
09-18-20, 01:04 AM
Replies: 302
Views: 13,103
Posted By HTupolev

If you want a specific study that gets into...

If you want a specific study that gets into bicycle performance, "Validation of a Mathematical Model for Road Cycling Power" (Martin, 1998)...
Forum: Road Cycling
09-17-20, 03:54 PM
Replies: 302
Views: 13,103
Posted By HTupolev

That's making a lot of assumptions. It certainly...

That's making a lot of assumptions. It certainly can be true, but it depends on the ride in question (for example if the ride is very short) and what the tires are being compared with.


Since you...
Forum: Road Cycling
09-16-20, 05:42 PM
Replies: 28
Views: 555
Posted By HTupolev

1-Slower because they were bottomed out and their...

1-Slower because they were bottomed out and their pedaling form went lumpy.
2-They often just didn't. Letting your bicycle dictate your routes is a path of less resistance than fixing the bicycle to...
09-16-20, 05:05 PM
Replies: 157
Views: 4,519
Posted By HTupolev

Sure, but I don't understand why the comparison...

Sure, but I don't understand why the comparison with not buying something entered this branch of the discussion. What I originally responded to was a comparison in relative affordability between two...
09-16-20, 04:34 PM
Replies: 157
Views: 4,519
Posted By HTupolev

My impression is that the scenario being...

My impression is that the scenario being discussed is a 0% loan of X dollars versus an up-front payment of X dollars. In the former case, if the money that you didn't pay up-front ends up making...
09-16-20, 04:20 PM
Replies: 157
Views: 4,519
Posted By HTupolev

That only means that it's not more affordable...

That only means that it's not more affordable than not making the purchase at all. If you profit off of those alternative investments, the purchase is still more affordable than having spent an equal...
09-16-20, 03:53 PM
Replies: 157
Views: 4,519
Posted By HTupolev

Given how our financial markets work, being able...

Given how our financial markets work, being able to spread payments out into the future at no interest generally does make something more affordable. And not just in the sense that you can buy...
Forum: Road Cycling
09-15-20, 09:04 PM
Replies: 82
Views: 2,332
Posted By HTupolev

1-You're overestimating the gaps in...

1-You're overestimating the gaps in specialization between these athletes. They're all endurance athletes, some are just more sprint-focused than others.
2-You're (probably massively)...
09-15-20, 03:12 PM
Replies: 9
Views: 230
Posted By HTupolev

559mm is the diameter that the tire bead sits at....

559mm is the diameter that the tire bead sits at. This is the same as the "26er" wheel size that dominated on older mountain bikes.
1.5" is the nominal inflated width of the tire (inflated tire...
09-14-20, 03:24 AM
Replies: 194
Views: 5,396
Posted By HTupolev

Prior to the mid-1980s, outside of some "racing"...

Prior to the mid-1980s, outside of some "racing" models, it was very normal for road bikes to take tire widths comparable to what most "endurance" road bikes handle today. 28mm-32mm was pretty normal...
09-13-20, 07:24 PM
Replies: 194
Views: 5,396
Posted By HTupolev

That's not a trail, it's a road. And while it's...

That's not a trail, it's a road. And while it's sometimes hard to get a sense for how gnarly something is without riding it, and while things look a little different up here in Washington, to my eyes...
Forum: Road Cycling
09-13-20, 12:28 PM
Replies: 25
Views: 946
Posted By HTupolev

If you don't like how a bike looks, don't buy it.

If you don't like how a bike looks, don't buy it.
Forum: Road Cycling
09-13-20, 01:03 AM
Replies: 72
Views: 3,037
Posted By HTupolev

The point that people are making here isn't that...

The point that people are making here isn't that bicycle quality doesn't matter at all, it's that you don't seem to understand how your priorities correlate to performance.

A Walmart beach cruiser...
09-12-20, 11:49 PM
Replies: 194
Views: 5,396
Posted By HTupolev

Because some people like riding nice bikes,...

Because some people like riding nice bikes, regardless of whether or not the ride makes the bike dirty. You can ride paved roads just fine on a piece of crap bike, and you can go mountain biking on a...
Forum: Road Cycling
09-12-20, 03:25 PM
Replies: 8
Views: 273
Posted By HTupolev

If it's just the outer rubber layer, you don't...

If it's just the outer rubber layer, you don't really have to do anything. Gluing it won't hurt, but it's unlikely to help either.

The real issue is if the casing fabric is damaged. Glue won't fix...
Forum: Road Cycling
09-11-20, 10:31 PM
Replies: 23
Views: 782
Posted By HTupolev

I have a stable that includes STI, bar-end...

I have a stable that includes STI, bar-end friction, and even a bike with downtube friction shifters. Right now I can hop on any of them without having to acclimate in any major way to the feel of...
Forum: Road Cycling
09-11-20, 04:04 PM
Replies: 72
Views: 3,037
Posted By HTupolev

If you're not getting enough resistance while...

If you're not getting enough resistance while climbing on a lightweight bicycle, pedal harder.
09-09-20, 11:34 AM
Replies: 65
Views: 2,284
Posted By HTupolev

That's not a useful way to compare gear ratios,...

That's not a useful way to compare gear ratios, what your legs feel is the ratio between them. That's what tells you how much your torque and cadence will change by if you shift between them....
09-07-20, 10:56 PM
Replies: 1,362
Views: 238,427
Posted By HTupolev

Rode a gorgeous road today. There was one spot...

Rode a gorgeous road today. There was one spot where the view opened up in multiple directions and you could just see everything everywhere. Mt Baker through the hills on the left side, Whitehorse...
09-07-20, 09:47 PM
Replies: 9
Views: 464
Posted By HTupolev

Are you sure that it was commonplace for the...

Are you sure that it was commonplace for the casing fabric to be left raw? There are plenty of cold-glued tires still made today, and basically all commercial models intended for outdoor use add...
Forum: Road Cycling
09-07-20, 06:47 PM
Replies: 7
Views: 611
Posted By HTupolev

Fist-sized? That doesn't sound so bad. ...

Fist-sized? That doesn't sound so bad.

https://i.imgur.com/J0AxBI0.jpg
Forum: Road Cycling
09-06-20, 07:15 PM
Replies: 40
Views: 1,581
Posted By HTupolev

The "lip" I'm referring to is the shaping on the...

The "lip" I'm referring to is the shaping on the sidewall of the tire right above where the tire enters the rim, not part of the rim.

Granted, not all tires have an obvious lip. Cold-glued cotton...
Forum: Road Cycling
09-06-20, 01:53 PM
Replies: 37
Views: 1,516
Posted By HTupolev

The reasoning is really simple. Resting the...

The reasoning is really simple. Resting the forearms straight forward on the handlebar ramps is quite aerodynamic for a posture that retains full pedalability and a high degree of control. But when...
09-06-20, 02:02 AM
Replies: 25
Views: 963
Posted By HTupolev

It's occasionally more economical on a fixie...

It's occasionally more economical on a fixie because you're likely very badly bottomed out at that point. As long as the gearing is reasonable and the circumstances remain reasonably rideable, it's...
Forum: Road Cycling
09-06-20, 01:19 AM
Replies: 40
Views: 1,581
Posted By HTupolev

Bummer about the crash. Considering the short...

Bummer about the crash. Considering the short span of time since the tire was installed, an installation problem is a likely culprit.

Long gashes in tubes are often the result of the tube being...
09-05-20, 01:42 PM
Replies: 25
Views: 963
Posted By HTupolev

Bicycles have historically often had very badly...

Bicycles have historically often had very badly inadequate bottom-end gearing. Being forced to get off and walk is far beyond the failure point; being forced 20, 30, 40% below your self-selected...
09-05-20, 12:37 PM
Replies: 25
Views: 963
Posted By HTupolev

The most minimal change that would create a...

The most minimal change that would create a substantial difference would be to try throwing an 11-50 11-speed cassette on the bike with a longer chain and see if it just works, and if not, toss a...
09-03-20, 12:25 AM
Replies: 3
Views: 251
Posted By HTupolev

Yes, 11-speed GRX derailleurs use the same cable...

Yes, 11-speed GRX derailleurs use the same cable pull as all Shimano 11-speed road derailleurs, so they're compatible with all of the 11-speed road shifters.

If you really don't want a left-side...
09-02-20, 06:04 PM
Replies: 122
Views: 4,956
Posted By HTupolev

Raw silver isn't really an option with carbon...

Raw silver isn't really an option with carbon components, unless you finish them in metal plating, which would be silly. The next obvious generic component color to go with is black. And if a whole...
Forum: Road Cycling
09-02-20, 03:26 PM
Replies: 302
Views: 13,103
Posted By HTupolev

"Supple" is a more sensual form of "flexible." It...

"Supple" is a more sensual form of "flexible." It is definitely something that can be felt in your hand. If you claim that how a tire feels in the hand means "less than nothing" to how it functions...
Forum: Road Cycling
09-02-20, 01:54 PM
Replies: 302
Views: 13,103
Posted By HTupolev

Yeah, most likely.

Yeah, most likely.
Forum: Road Cycling
09-02-20, 01:48 PM
Replies: 302
Views: 13,103
Posted By HTupolev

Whoa. I try not to make assumptions about what...

Whoa. I try not to make assumptions about what sorts of objections that people will raise in online discussions, but I certainly didn't see "you're using a counterfeit Gatorskin" coming.

...
Forum: Road Cycling
09-01-20, 04:20 PM
Replies: 302
Views: 13,103
Posted By HTupolev

I guess I haven't done any precise testing on the...

I guess I haven't done any precise testing on the speed, but I'm not making any assumptions when I say that they're "stiff." Here's me a few minutes ago holding a Pasela and a Gatorskin in my hand:
...
Forum: Road Cycling
09-01-20, 03:30 PM
Replies: 302
Views: 13,103
Posted By HTupolev

It's from an old Bicycle Quarterly, but I...

It's from an old Bicycle Quarterly, but I referenced it from this (https://www.renehersecycles.com/myth-16-higher-tire-pressure-is-faster/) blog post. Heine's test methodology involved measuring...
Forum: Road Cycling
09-01-20, 03:01 PM
Replies: 302
Views: 13,103
Posted By HTupolev

No, you misread my post. I wasn't claiming that...

No, you misread my post. I wasn't claiming that you need to be at high pressure to go fast. I was pointing out that the performance differences between the tires was larger when they were pumped...
Forum: Road Cycling
09-01-20, 02:38 PM
Replies: 302
Views: 13,103
Posted By HTupolev

I'm familiar with the discussion around drum...

I'm familiar with the discussion around drum testing. Like, I literally have a Bicycle Quarterly subscription.

The main criticism with traditional drum testing is that it does not detect the...
Forum: Road Cycling
09-01-20, 12:37 PM
Replies: 302
Views: 13,103
Posted By HTupolev

The only impressive property of Gatorskins is...

The only impressive property of Gatorskins is that they are extremely long-wearing. They last just about forever.

For the user, this is also one of their biggest flaws.
Forum: Road Cycling
09-01-20, 12:13 PM
Replies: 302
Views: 13,103
Posted By HTupolev

If we assume that the crr difference between a...

If we assume that the crr difference between a Gatorskin and a GP5000 in steel drum testing is comparable to the difference on an actual road, for an average bike+rider the Gatorskin is going to cost...
08-29-20, 12:51 AM
Replies: 23
Views: 729
Posted By HTupolev

I'm not sure that I'd call the construction...

I'm not sure that I'd call the construction "finished." The Whitehorse is supposed to extend a few miles farther west, connecting to the Centennial trail just north of Haller Park in Arlington. That...
08-27-20, 06:59 PM
Replies: 22
Views: 1,144
Posted By HTupolev

Some socks are considerably more aerodynamic than...

Some socks are considerably more aerodynamic than others!
08-26-20, 04:57 PM
Replies: 16
Views: 540
Posted By HTupolev

G-One Speed 29x2 Rene Herse Antelope Hill

G-One Speed 29x2
Rene Herse Antelope Hill
Forum: Road Cycling
08-25-20, 09:22 PM
Replies: 8
Views: 468
Posted By HTupolev

Tubolito. Or just carry a smaller tube and...

Tubolito.

Or just carry a smaller tube and don't worry about it.
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