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Search: Posts Made By: HTupolev
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Forum: Road Cycling
07-06-20, 06:14 PM
Replies: 41
Views: 1,374
Posted By HTupolev

This question being asked - and mostly the matter...

This question being asked - and mostly the matter being discussed - is less about how different brands compare with each other than how different types of quality tiers of tire compare. Nobody in...
Forum: Road Cycling
07-06-20, 05:32 PM
Replies: 12
Views: 306
Posted By HTupolev

On tires meant for paved road use, performance...

On tires meant for paved road use, performance and comfort are not in opposition to each other. If anything, high-performance tires tend to provide a smoother ride than lower-performance tires. And,...
Forum: Road Cycling
07-06-20, 02:33 PM
Replies: 41
Views: 1,374
Posted By HTupolev

No it doesn't. By reducing aerodynamic drag and...

No it doesn't. By reducing aerodynamic drag and allowing higher speeds, drafting makes rolling resistance more relatively significant: it becomes a greater fraction of overall resistance.
Forum: Road Cycling
07-05-20, 06:57 PM
Replies: 24
Views: 422
Posted By HTupolev

Insufficient low-end gearing becomes tangibly...

Insufficient low-end gearing becomes tangibly detrimental to performance long before it actually forces you to get off and walk. Look at the lowest ratio gear combination that you routinely use to...
07-04-20, 02:17 AM
Replies: 7
Views: 942
Posted By HTupolev

If it goes past River Meadows Park, he's...

If it goes past River Meadows Park, he's referring to Jordan Road. It roughly parallels the South Fork Stillaguamish river between Granite Falls and Arlington, on the north side of the river. Burn...
Forum: Road Cycling
07-03-20, 01:33 AM
Replies: 98
Views: 4,892
Posted By HTupolev

This is true, but with respect to surface...

This is true, but with respect to surface irregularities, I wonder if it doesn't get overstated. At a given pressure, the vertical spring rate of a tire appears to change much less with respect to...
Forum: Road Cycling
07-02-20, 03:12 PM
Replies: 60
Views: 2,783
Posted By HTupolev

On a road bike, maybe for a very small cyclist on...

On a road bike, maybe for a very small cyclist on a very efficient setup. For a typical rider, 10W will buy around half a mph at 18.5mph.

(Also, 10W from wheelset differences alone at 18.5mph...
07-02-20, 12:26 AM
Replies: 6
Views: 232
Posted By HTupolev

I have no idea what the OP's bike is like, or...

I have no idea what the OP's bike is like, or whether it's suitable for the OP's gravel, but what makes you think that it has 27" steel rims and a 1970s freewheel hub?
Forum: Road Cycling
07-01-20, 04:13 AM
Replies: 28
Views: 1,039
Posted By HTupolev

If they're struggling to ride up a 7% paved road...

If they're struggling to ride up a 7% paved road regardless of pace, and they ride in area where 7% hills aren't exceedingly uncommon, then they have a serious problem with their bicycle setup.
...
Forum: Road Cycling
06-30-20, 07:33 PM
Replies: 29
Views: 730
Posted By HTupolev

"Single speed" refers to how many gear ratios a...

"Single speed" refers to how many gear ratios a bicycle has, while "fixed gear" refers to how the gear is attached to the hub. "Single speed" means that a bicycle has only one gear. "Fixed gear"...
Forum: Road Cycling
06-30-20, 03:44 AM
Replies: 6
Views: 221
Posted By HTupolev

I don't have any aRX components, but I have a...

I don't have any aRX components, but I have a SunTour BL front derailleur from 1983 that has its limit screws in a similar position. On my derailleur, there's a tab that the high-limit screw makes...
06-29-20, 07:13 PM
Replies: 160
Views: 9,864
Posted By HTupolev

Materials with higher hardness do tend to also...

Materials with higher hardness do tend to also have higher stiffness, especially when looking at non-metals, but hardening a piece of metal does not significantly affect its stiffness.
06-29-20, 02:11 AM
Replies: 160
Views: 9,864
Posted By HTupolev

What are you basing this off of? While replacing...

What are you basing this off of? While replacing a dropout on a tig-welded steel frameset isn't an entirely trivial process, paying a steel framebuilder to perform the service is generally...
06-28-20, 01:57 AM
Replies: 1,303
Views: 224,710
Posted By HTupolev

LOL https://i.imgur.com/fpS4k8V.jpg

LOL

https://i.imgur.com/fpS4k8V.jpg
Forum: Road Cycling
06-24-20, 11:50 PM
Replies: 21
Views: 709
Posted By HTupolev

If you have a reason to err wide, err wide. Even...

If you have a reason to err wide, err wide. Even on a perfectly smooth and clean surface where there's no obvious benefit in 32mm over 28mm (except for maybe wear life), the performance penalties of...
Forum: Road Cycling
06-24-20, 03:10 AM
Replies: 28
Views: 1,039
Posted By HTupolev

What does "climbfest" have to do with how hard a...

What does "climbfest" have to do with how hard a ride is?
Forum: Road Cycling
06-23-20, 09:02 AM
Replies: 13
Views: 523
Posted By HTupolev

Not worlds apart from using aluminum. If you're...

Not worlds apart from using aluminum. If you're riding in clean conditions, its typically basically forever. If you're doing a lot of wet riding and your regional roads are covered in a particularly...
06-21-20, 02:37 AM
Replies: 78
Views: 3,170
Posted By HTupolev

I can't speak to Michelin since I don't use any...

I can't speak to Michelin since I don't use any Michelin-branded tires, but I'm fairly certain that this is untrue for Panaracer. It seems like they'd get sued to oblivion, since the molds for even...
06-20-20, 12:58 PM
Replies: 131
Views: 8,759
Posted By HTupolev

Sure, but there are road-worthy faired recumbents...

Sure, but there are road-worthy faired recumbents that are still much faster on the flats than unfaired road or TT/Tri bikes. And all of the riding that I've done with my friends on their high-racer...
06-20-20, 01:45 AM
Replies: 131
Views: 8,759
Posted By HTupolev

Pretty much all of the 'bents that I randomly...

Pretty much all of the 'bents that I randomly happen across in the wild are going extremely slow.
But.
The vast majority of recumbents are not designed or equipped for speed, and most people who...
06-19-20, 07:43 PM
Replies: 693
Views: 145,175
Posted By HTupolev

New cassette. ...

New cassette.

https://i.imgur.com/1u4jcJj.jpg

https://i.imgur.com/x1DzA5I.jpg
06-19-20, 01:05 PM
Replies: 131
Views: 8,759
Posted By HTupolev

The claim about slower riders saving more time on...

The claim about slower riders saving more time on the same course is correct, but it's definitely a marketing-driven perspective.

On average, weaker endurance athletes tend to partake in shorter...
06-19-20, 12:53 PM
Replies: 3
Views: 241
Posted By HTupolev

What if the OP has a different body than you,...

What if the OP has a different body than you, different hopes or expectations about how their bicycle should feel, and rides on different roads than you do?
06-19-20, 12:25 PM
Replies: 17
Views: 392
Posted By HTupolev

As long as the drivetrain seems to work, I'd...

As long as the drivetrain seems to work, I'd probably be more concerned about the security of the retainer cup on the non-drive side than an off-center spindle. In the days when 3-piece cranksets...
06-18-20, 12:43 AM
Replies: 15
Views: 496
Posted By HTupolev

Even if you were trying to optimize rolling...

Even if you were trying to optimize rolling resistance, over-pumping tires tends to be a bad idea: if you're getting rattled, that rattling is being stolen from your forward momentum. Smooth is fast....
06-16-20, 12:09 PM
Replies: 19
Views: 485
Posted By HTupolev

Not a comparable situation, because whether a...

Not a comparable situation, because whether a bicycle is freewheeling or fixed-gear or coaster, the pedals themselves are the same mechanism. If you use a pedal to brake, it's still a pedal. Brifters...
06-15-20, 11:33 PM
Replies: 19
Views: 485
Posted By HTupolev

There are, to a degree. The TT/Tri market has...

There are, to a degree. The TT/Tri market has helped keep bar-end shifters slightly alive on the high-end market, and Shimano actually still sells an 8-speed downtube shifter under Claris. Outside of...
06-15-20, 08:30 PM
Replies: 19
Views: 485
Posted By HTupolev

Because most of the terms used by manufacturers...

Because most of the terms used by manufacturers refer specifically to their proprietary implementations, and for a general term, "brifter" has far fewer syllables than "integrated brake/shift lever."
Forum: Road Cycling
06-14-20, 03:24 PM
Replies: 21
Views: 973
Posted By HTupolev

It's fairly normal. With undamped derailleurs,...

It's fairly normal. With undamped derailleurs, thoroughly preventing it would require very high chain tension, which would compromise shift quality and increase the drivetrain friction on the lower...
06-14-20, 02:11 AM
Replies: 7
Views: 274
Posted By HTupolev

Are you sure? On Shimano freehub bodies, the...

Are you sure? On Shimano freehub bodies, the stops that the cassette sits against are on the "raised" portions, with the "valleys" going farther inboard, which should leave room for the rivets.

If...
06-13-20, 09:05 PM
Replies: 693
Views: 145,175
Posted By HTupolev

New middle ring. ...

New middle ring.

https://i.imgur.com/X0dAvfv.jpg

https://i.imgur.com/W7WA2XK.jpg

https://i.imgur.com/ceOgoJz.jpg

https://i.imgur.com/MLO5wCl.jpg
06-11-20, 12:00 PM
Replies: 32
Views: 998
Posted By HTupolev

The 817 isn't a longer-cage derailleur than the...

The 817 isn't a longer-cage derailleur than the 815.

The 1x vs 2x discrepancy with the derailleurs has to do mostly with how big the offset is between the jockey wheel and the cage pivot. They're...
06-09-20, 03:18 PM
Replies: 66
Views: 3,162
Posted By HTupolev

He didn't. The article isn't actually about...

He didn't.

The article isn't actually about the guy who assaulted the kids.
06-04-20, 01:20 PM
Replies: 30
Views: 756
Posted By HTupolev

Unless you both ride similar terrain as the OP...

Unless you both ride similar terrain as the OP and have very similar physical ability, what works for you doesn't have much to do with what will work for them. Even relatively small differences in...
Forum: Road Cycling
06-04-20, 12:52 PM
Replies: 98
Views: 4,892
Posted By HTupolev

I think people are talking around each other. ...

I think people are talking around each other.

If it's assumed to be suspected that small differences in tire width produce differences in paved performance so large that they're casually-obvious,...
Forum: Road Cycling
06-03-20, 11:24 PM
Replies: 98
Views: 4,892
Posted By HTupolev

The issue is that Strava's power estimate has no...

The issue is that Strava's power estimate has no idea how to account for rolling and aerodynamic performance of tire changes. If you ride the same route at the same pace on two different tires, it'll...
Forum: Road Cycling
06-03-20, 05:34 PM
Replies: 98
Views: 4,892
Posted By HTupolev

It doesn't have to be a magical coincidence,...

It doesn't have to be a magical coincidence, particularly as a .3mph difference is not "nearly the same" considering the sorts of things that the thread is discussing. If I do "the same ride" on two...
Forum: Road Cycling
06-01-20, 09:39 PM
Replies: 12
Views: 434
Posted By HTupolev

Changing weight at the rims can have a noticeable...

Changing weight at the rims can have a noticeable gyroscopic effect on a bike, especially when tossing it around out of the saddle at speed.
Adding weight to the tires will also create more...
05-31-20, 02:13 AM
Replies: 52
Views: 1,685
Posted By HTupolev

Usually they're not, but there's no reason they...

Usually they're not, but there's no reason they can't be. With current typical chainstay lengths, tire sizes, and crankset q-factors, many road bikes don't have a lot of technical reasons to be...
Forum: Road Cycling
05-30-20, 02:21 AM
Replies: 10
Views: 594
Posted By HTupolev

Cannondale is the brand of the bike. R1000 is a...

Cannondale is the brand of the bike. R1000 is a range of road bikes that Cannondale used to make.

"Slice Ultra" is a fork that Cannondale used to make. The seller probably saw the "R1000" on the...
05-30-20, 12:33 AM
Replies: 15
Views: 428
Posted By HTupolev

Good to hear that this sort of thing is viable....

Good to hear that this sort of thing is viable. I'm putting together a bicycle right now where I intend to use a definitely-not-11-speed triple with an 11-speed chain, and I've been contemplating my...
05-29-20, 08:06 PM
Replies: 5
Views: 329
Posted By HTupolev

It has a 250Wh battery and you can install a...

It has a 250Wh battery and you can install a 210Wh range extender.

The motor itself is 250W.
05-28-20, 04:47 PM
Replies: 37
Views: 2,284
Posted By HTupolev

I think the main reason that most of us don't...

I think the main reason that most of us don't crash much on our gravel bikes is that's we didn't get them to ride "trails", we got them to ride roads. The gravel I ride is anything but flat (I've...
Forum: Road Cycling
05-27-20, 05:56 PM
Replies: 39
Views: 896
Posted By HTupolev

No, I was just using it to illustrate Woodcraft's...

No, I was just using it to illustrate Woodcraft's concern regarding power accuracy.
Forum: Road Cycling
05-26-20, 04:52 PM
Replies: 39
Views: 896
Posted By HTupolev

I brought up the hypothetic example of pushing...

I brought up the hypothetic example of pushing downward on the downstroke to help explain the concern regarding power meter behavior. I wasn't envisioning any kind of normal pedaling form.


It...
Forum: Road Cycling
05-26-20, 03:31 PM
Replies: 39
Views: 896
Posted By HTupolev

Imagine if, instead of unweighting the foot on...

Imagine if, instead of unweighting the foot on the upstroke, you continued to push downward with your leg. This would increase the resistance for the other leg's downstroke, and cause your body to...
Forum: Road Cycling
05-26-20, 12:12 PM
Replies: 39
Views: 896
Posted By HTupolev

I'd be surprised if the exact angle doesn't...

I'd be surprised if the exact angle doesn't involve some guesswork, but pushing down versus pulling up at any particular point in the stroke should be detectable as long as the power meter correctly...
05-26-20, 11:00 AM
Replies: 26
Views: 1,002
Posted By HTupolev

Railroad tracks in the rain don't need to be...

Railroad tracks in the rain don't need to be handled that much more perpendicularly than in the dry. The thing to make really sure of in wet weather is that you're not still in the process of turning...
Forum: Road Cycling
05-26-20, 10:54 AM
Replies: 39
Views: 896
Posted By HTupolev

Not necessarily. I would think that the strain...

Not necessarily. I would think that the strain gauge would be able to read the weighting of the foot on the upstroke as negative power.

It could contribute to single-sided inaccuracy, like if one...
Forum: Road Cycling
05-26-20, 10:29 AM
Replies: 126
Views: 5,870
Posted By HTupolev

I was pointing out context which renders it...

I was pointing out context which renders it questionable as an argument against current measures, not claiming that it's a strong argument in favor of them. I don't really care whether the latter is...
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