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Search: Posts Made By: cyccommute
Showing results 1 to 50 of 1000
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Forum: General Cycling Discussion
06-18-24, 02:47 PM
Replies: 138
Views: 5,825
Posted By cyccommute

The problem with appealing to old, dead guys is...

The problem with appealing to old, dead guys is that they can say pretty much whatever you like. Polyurethane tubes...yes, the same ones as now...had a moment many years ago. They didn't catch on for...
Forum: General Cycling Discussion
06-18-24, 02:43 PM
Replies: 138
Views: 5,825
Posted By cyccommute

But didn't you know that if you use TPU, you'll...

But didn't you know that if you use TPU, you'll never experience a flat again?:rolleyes: You won't have to repair in the field because you'll never be stuck with a flat tire in the field. It's so...
Forum: General Cycling Discussion
06-18-24, 02:36 PM
Replies: 138
Views: 5,825
Posted By cyccommute

I sure we can find you a forester to cut down...

I sure we can find you a forester to cut down those trees so that you can see the forest.

Any debris that gets into the tube is going to be sharper than a 1mm rounded object. I could go out and...
Forum: General Cycling Discussion
06-18-24, 09:45 AM
Replies: 138
Views: 5,825
Posted By cyccommute

Kind of my thought. A 1mm rounded tip is a...

Kind of my thought. A 1mm rounded tip is a fairly large “intrusion”. That’s a medium tip ball point pen for comparison.
Forum: General Cycling Discussion
06-18-24, 09:41 AM
Replies: 138
Views: 5,825
Posted By cyccommute

Um…ookaay? I don’t recall Sheldon Brown raining...

Um…ookaay? I don’t recall Sheldon Brown raining down vengeance on people he disagreed with or trying to keep people in line.

And to borrow a famous line, I don’t think that word means what you...
Forum: General Cycling Discussion
06-18-24, 07:51 AM
Replies: 138
Views: 5,825
Posted By cyccommute

I’ve had plenty of slow leaks with butyl tubes...

I’ve had plenty of slow leaks with butyl tubes and plenty of instant flats with the TPU tubes. Again, in a relatively limited usage…about a year now…I experienced 4 flats in 2 days due to something...
Forum: General Cycling Discussion
06-17-24, 04:04 PM
Replies: 138
Views: 5,825
Posted By cyccommute

You do realize that tubes have to have some air...

You do realize that tubes have to have some air in them to find flats to repair, don’t you? I dare you to pump up a TPU tube to the size of the one in the video and then get it back to the size it...
Forum: General Cycling Discussion
06-17-24, 07:23 AM
Replies: 138
Views: 5,825
Posted By cyccommute

If TPU is so “stretchy” why does RideNow say...

If TPU is so “stretchy” why does RideNow say this:


Schwable say this:



and Tubolito’s instructions say not to inflate past 8psi outside of the tire? The material can expand a bit but it...
Forum: Classic & Vintage
06-16-24, 03:38 PM
Replies: 18
Views: 502
Posted By cyccommute

Says all you need to know right there ...

Says all you need to know right there

https://cimg2.ibsrv.net/gimg/bikeforums.net-vbulletin/573x529/img_3252_e61b4aadef4c1dab84e82717d2ea6453c8ae520f.jpeg

Perhaps a bit larger than most stem...
Forum: Touring
06-16-24, 08:02 AM
Replies: 33
Views: 904
Posted By cyccommute

On my road bikes I have Brooks B17N, B17 Special,...

On my road bikes I have Brooks B17N, B17 Special, Pro, and Swallow. My touring saddle is the B17 Special. On my mountain bikes (which I also tour on), I run Sella Italia Flites because Brooks...
Forum: Bicycle Mechanics
06-16-24, 07:42 AM
Replies: 13
Views: 311
Posted By cyccommute

It’s very common, especially in volunteer shops. ...

It’s very common, especially in volunteer shops. People misalign the tool all the time and end up bending or breaking the pin. Just replace it.
Forum: Bicycle Mechanics
06-15-24, 08:16 AM
Replies: 67
Views: 2,104
Posted By cyccommute

Quote out of context much? Most people know the...

Quote out of context much? Most people know the difference between a wheel “washout” and a “skid”. On slick surfaces, any deviation from straight line results in a sideways force on the wheel which...
Forum: General Cycling Discussion
06-14-24, 06:29 PM
Replies: 138
Views: 5,825
Posted By cyccommute

”Common sense” is based upon previous experience....

”Common sense” is based upon previous experience. TPU tubes are relatively new and no one should be expected to know that it doesn’t stretch without being told so. When the manufacturer gives a...
Forum: General Cycling Discussion
06-14-24, 06:21 PM
Replies: 138
Views: 5,825
Posted By cyccommute

TPU ain’t rubber. When using TPU, there’s a...

TPU ain’t rubber. When using TPU, there’s a learning curve that isn’t generally needed with rubber tubes because someone else did the learnin’ long ago for rubber tubes. The tube that herniated on...
Forum: General Cycling Discussion
06-14-24, 09:31 AM
Replies: 138
Views: 5,825
Posted By cyccommute

The herniation near the seam almost should be...

The herniation near the seam almost should be expected. Butyl tubes are joined by using a butt joint while the TPU seems to be an overlap joint. Since TPU isn’t stretchy, adding two layers of...
Forum: General Cycling Discussion
06-14-24, 07:33 AM
Replies: 138
Views: 5,825
Posted By cyccommute

Well we all can’t be Mary Poppins, now can we? ...

Well we all can’t be Mary Poppins, now can we?



Yes, I know a lot about plastics and materials but I don’t know everything about every plastic. I admitted I made a mistake and I’m trying to...
Forum: General Cycling Discussion
06-13-24, 11:10 PM
Replies: 138
Views: 5,825
Posted By cyccommute

That’s not that dissimilar to what I saw nor...

That’s not that dissimilar to what I saw nor dissimilar to what happened when I used undersized TPU previously. I can kind of blame myself for the cause of the first problem by using undersized...
Forum: General Cycling Discussion
06-13-24, 11:02 PM
Replies: 138
Views: 5,825
Posted By cyccommute

Not in my experience. And 25% is pretty small...

Not in my experience. And 25% is pretty small compared to rubber which stretches more like 400%. To give some indication of how much 25% is, a 25mm tube expanded to 32mm is 28%. A 25mm tube expanded...
Forum: General Cycling Discussion
06-13-24, 09:39 AM
Replies: 138
Views: 5,825
Posted By cyccommute

It is still likely to be due to the lack of...

It is still likely to be due to the lack of stretch of TPU and/or a tube that is too small. TPU tubes need to be matched to the tire size much more carefully than butyl tubes are. Inside a tire,...
Forum: Classic & Vintage
06-13-24, 08:24 AM
Replies: 480
Views: 90,013
Posted By cyccommute

Given your name and the description of the shop,...

Given your name and the description of the shop, I know which one you are talking about. I have a very long association with them as a volunteer. You are mistaken on several points. First, the bikes...
Forum: General Cycling Discussion
06-13-24, 07:56 AM
Replies: 138
Views: 5,825
Posted By cyccommute

Kind of like this? ...

Kind of like this?

https://cimg9.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/img_5790_1ae94abe542f14ff365147e2146d46ee85716aec.jpeg...
Forum: Classic & Vintage
06-10-24, 07:56 AM
Replies: 55
Views: 1,396
Posted By cyccommute

Schwinn Montague BiFrame...

Schwinn Montague BiFrame (https://waterfordbikes.com/SchwinnCat/flschwinn_1991_2000/1991_30.html). I owned the damn thing for 16 years and put 460 miles on it. An absolutely awful bike! The folding...
Forum: Touring
06-10-24, 07:22 AM
Replies: 7
Views: 230
Posted By cyccommute

Ribo-Mo have a very triangular profile. Always...

Ribo-Mo have a very triangular profile. Always have. I’ve used them on a few bikes and never really noticed any difference.
Forum: Bicycle Mechanics
06-10-24, 07:15 AM
Replies: 67
Views: 2,104
Posted By cyccommute

No. The bike falls over because the front wheel...

No. The bike falls over because the front wheel isn’t turning and the bicycle becomes unstable. On slick surfaces, the wheel will slide slightly to the side which makes keeping the bike upright...
Forum: Bicycle Mechanics
06-09-24, 10:49 AM
Replies: 67
Views: 2,104
Posted By cyccommute

No, they aren't. In many respects...the adjuster...

No, they aren't. In many respects...the adjuster screw issue...the BB7 are easier to set up and maintain. In terms of braking ability, they are equivalent.
Forum: Bicycle Mechanics
06-09-24, 09:32 AM
Replies: 67
Views: 2,104
Posted By cyccommute

The front wheel doesn't skid in those situations....

The front wheel doesn't skid in those situations. The bicycle becomes unstable and falls over if the wheel is stopped from rotating. You may not go over the bars but the bicycle won't stay up and...
Forum: Bicycle Mechanics
06-08-24, 07:33 AM
Replies: 67
Views: 2,104
Posted By cyccommute

No. You can’t. It is physically impossible to...

No. You can’t. It is physically impossible to slide the front wheel of a single bicycle during braking. Tandems and some recumbents can slide the front wheel but that’s because their wheelbase,...
Forum: General Cycling Discussion
06-08-24, 07:25 AM
Replies: 82
Views: 2,361
Posted By cyccommute

That depends on how you define “entry level”. ...

That depends on how you define “entry level”. The cheapest Specialized Sirrus and Trek FX…i.e. the “entry level” bikes…have at least doubles and, in the case of the FX, triples.
Forum: Bicycle Mechanics
06-07-24, 10:08 AM
Replies: 16
Views: 529
Posted By cyccommute

The tool is a Rohloff HG/IG Sprocket wear...

The tool is a Rohloff HG/IG Sprocket wear indicator...
Forum: General Cycling Discussion
06-07-24, 09:26 AM
Replies: 46
Views: 1,792
Posted By cyccommute

“Everyone I know has a big but. C’mon, Simone,...

“Everyone I know has a big but. C’mon, Simone, let’s talk about your big but.” -Pee Wee's Big Adventure
Forum: General Cycling Discussion
06-07-24, 09:22 AM
Replies: 82
Views: 2,361
Posted By cyccommute

Reread hybridbkrdr original post. hybridbkrdr is...

Reread hybridbkrdr original post. hybridbkrdr is talking about low end bikes. Many low end bikes still come equipped with triples and with freewheels. In fact several low end bikes have gone...
Forum: Bicycle Mechanics
06-06-24, 01:19 PM
Replies: 64
Views: 2,107
Posted By cyccommute

Yield strength doesn’t go down with butting. It...

Yield strength doesn’t go down with butting. It goes up. Counter intuitive but Pillar (https://www.pillarspoke.com/spoke/plain-gauge) has conveniently measured it.

Plain gauge (P14)...
Forum: Bicycle Mechanics
06-06-24, 01:04 PM
Replies: 67
Views: 2,104
Posted By cyccommute

More than what you think especially if you add...

More than what you think especially if you add years to the diagram.
Forum: Bicycle Mechanics
06-06-24, 10:39 AM
Replies: 67
Views: 2,104
Posted By cyccommute

They are easy to install except if you need to...

They are easy to install except if you need to change length of the tubing. Or thread them through a frame. Or change hydraulic brakes that have been installed in a internal routing brake.


...
Forum: Bicycle Mechanics
06-06-24, 08:33 AM
Replies: 67
Views: 2,104
Posted By cyccommute

Your current rotors will work with either...

Your current rotors will work with either hydraulic or mechanical. There’s really no need to change the rotor unless it is worn. I would suspect that most people with disc bikes have a bunch of...
Forum: Bicycle Mechanics
06-06-24, 08:14 AM
Replies: 22
Views: 607
Posted By cyccommute

Rather than try to remember which cup is left...

Rather than try to remember which cup is left threaded and which is right threaded, I’ve found that people remember how to remove the cups easier if they are instructed to push down on the wrench...
Forum: Bicycle Mechanics
06-06-24, 07:58 AM
Replies: 22
Views: 607
Posted By cyccommute

No need. The axle spins with the tool in place. ...

No need. The axle spins with the tool in place. There isn’t any binding as the bottom bracket comes out.
Forum: Bicycle Mechanics
06-06-24, 07:57 AM
Replies: 22
Views: 607
Posted By cyccommute

Left is right and right is wrong.

Left is right and right is wrong.
Forum: Bicycle Mechanics
06-05-24, 04:40 PM
Replies: 67
Views: 2,104
Posted By cyccommute

They aren’t “better” but they aren’t worse,...

They aren’t “better” but they aren’t worse, either. The reason they are used for bicycles is simplicity.

We really don’t need anything more powerful because a bicycle’s ability to decelerate...
Forum: Bicycle Mechanics
06-05-24, 04:30 PM
Replies: 67
Views: 2,104
Posted By cyccommute

Oh, please! Mechanical brakes don’t lack...

Oh, please! Mechanical brakes don’t lack leverage nor is the force necessary to stop the wheel from rotating too much for cable actuated brakes…disc or rim. Cable actuated disc brakes were in use...
Forum: General Cycling Discussion
06-03-24, 04:22 PM
Replies: 13
Views: 519
Posted By cyccommute

I view them with a burning hatred hotter than the...

I view them with a burning hatred hotter than the surface of the sun! I hate internally routed hydraulics even more! There is no level of hell low enough for the person who thought internally routing...
Forum: Classic & Vintage
06-03-24, 04:07 PM
Replies: 17
Views: 455
Posted By cyccommute

A couple of things to consider. First and...

A couple of things to consider. First and foremost, is sizing. The Fuji Mt. Fuji is a mountain bike. It is sized as a mountain bike. Many people make the mistake of thinking that if they ride a...
Forum: General Cycling Discussion
06-03-24, 03:45 PM
Replies: 38
Views: 1,340
Posted By cyccommute

I don't know what your kids did nor what kind of...

I don't know what your kids did nor what kind of bibs you have but I've washed and dried shorts, arm warmers, leg warmers, waist high tights, and bib tights hundreds of times each over the last...
Forum: General Cycling Discussion
06-03-24, 03:31 PM
Replies: 46
Views: 1,792
Posted By cyccommute

Stupid autocorrect!

Stupid autocorrect!
Forum: General Cycling Discussion
06-03-24, 09:17 AM
Replies: 46
Views: 1,792
Posted By cyccommute

All the bicycle quotes you'll every want or need....

All the bicycle quotes you'll every want or need. (https://www.amazon.com/Quotable-Cyclist-Moments-Bicycling-Inspiration/dp/189136927X)

A couple out of several hundred:

"When you're turing the...
Forum: General Cycling Discussion
06-03-24, 07:45 AM
Replies: 38
Views: 1,340
Posted By cyccommute

No, most people are worried that the dryer is...

No, most people are worried that the dryer is going to melt their clothes. Or, more specifically, how the dryer is going to damage the "rubber" of bicycle clothing. The elastomer that makes up the...
Forum: Bicycle Mechanics
06-02-24, 08:01 AM
Replies: 11
Views: 575
Posted By cyccommute

By itself, maybe. But done in conjunction with a...

By itself, maybe. But done in conjunction with a high sheer epoxy, those 2 threads would probably be enough. It’s not like the bike is functional right now.
Forum: Bicycle Mechanics
05-31-24, 10:29 PM
Replies: 11
Views: 575
Posted By cyccommute

Someone on the Vintage Cannondale site suggested...

Someone on the Vintage Cannondale site suggested that these stops...
Forum: Bicycle Mechanics
05-31-24, 05:30 PM
Replies: 11
Views: 575
Posted By cyccommute

This is what it should look like. This is from a...

This is what it should look like. This is from a listing on Fleabay (https://www.ebay.com/itm/254764235231) for a 90s ST600, although going by your color, the bike looks like a 1990 ST400. The stop...
Forum: Bicycle Mechanics
05-31-24, 04:05 PM
Replies: 64
Views: 2,107
Posted By cyccommute

You need something to gauge the wobble in the...

You need something to gauge the wobble in the wheel like a truing stand or, as others have pointed out, your bike. You cannot true by tension alone.
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