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Search: Posts Made By: Kontact
Showing results 1 to 50 of 1000
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Forum: Bicycle Mechanics
05-30-24, 06:56 AM
Replies: 5
Views: 85
Posted By Kontact

You should try to find out why stuff is suddenly...

You should try to find out why stuff is suddenly not working rather than replacing everything as a first step.
Forum: Classic and Vintage Bicycles: Whats it Worth? Appraisals.
05-29-24, 07:37 PM
Replies: 11
Views: 204
Posted By Kontact

That quill stem looks like a common size - 110mm...

That quill stem looks like a common size - 110mm or so. The seat tube length is long - a big bike. The geometry is typical of a standard road bike.

Before you buy, look for areas near the lugs...
Forum: Bicycle Mechanics
05-29-24, 05:39 PM
Replies: 15
Views: 222
Posted By Kontact

That headtube might never have been reamed.

That headtube might never have been reamed.
Forum: Road Cycling
05-29-24, 11:53 AM
Replies: 22
Views: 494
Posted By Kontact

Kinda defeats the purpose of a QR.

Kinda defeats the purpose of a QR.
Forum: Classic and Vintage Bicycles: Whats it Worth? Appraisals.
05-29-24, 11:49 AM
Replies: 11
Views: 204
Posted By Kontact

At least one generation of Epics literally fell...

At least one generation of Epics literally fell apart from galvanic corrosion. But bikes rarely ridden...
Forum: Bicycle Mechanics
05-29-24, 11:46 AM
Replies: 15
Views: 222
Posted By Kontact

I think you'll find those aluminum cups stay cold...

I think you'll find those aluminum cups stay cold for only seconds once they touch the warm steel head tube, and you'll need a press either way.
Forum: Bicycle Mechanics
05-28-24, 06:40 PM
Replies: 7
Views: 194
Posted By Kontact

What, exactly, "seems off"? If you dished it...

What, exactly, "seems off"?

If you dished it correctly, what you are observing may be something other than the wheel.
Forum: Bicycle Mechanics
05-28-24, 05:41 PM
Replies: 9
Views: 288
Posted By Kontact

Well, was the cone and the stem well greased...

Well, was the cone and the stem well greased where they contact each other?
Forum: Commuting
05-27-24, 10:12 PM
Replies: 8
Views: 306
Posted By Kontact

It truly doesn't matter, but the rear takes more...

It truly doesn't matter, but the rear takes more weight so I would be inclined to put the 28 on the back.
Forum: Cyclocross and Gravelbiking (Recreational)
05-27-24, 03:23 PM
Replies: 23
Views: 412
Posted By Kontact

Sure. But not differences that amount to three to...

Sure. But not differences that amount to three to five times the material or labor costs.

I have personally seen examples of the very finest brands with serious flaws, so they are no immune to...
Forum: Bicycle Mechanics
05-27-24, 02:28 PM
Replies: 28
Views: 463
Posted By Kontact

Then the two that broke may have just been under...

Then the two that broke may have just been under too little tension. And the wheel overall may benefit from tightening all the spokes a little. I would take it to a good wheelbuilder if you want to...
Forum: Cyclocross and Gravelbiking (Recreational)
05-27-24, 01:48 PM
Replies: 23
Views: 412
Posted By Kontact

Certain brands are luxury items and priced...

Certain brands are luxury items and priced accordingly. And this works, because when a quality company like Lynskey offers a lower price consumers assume that something is wrong with the product and...
Forum: Bicycle Mechanics
05-27-24, 01:15 PM
Replies: 28
Views: 463
Posted By Kontact

Too focused on what other people think, too much...

Too focused on what other people think, too much interest in money?
Forum: Bicycle Mechanics
05-27-24, 12:28 PM
Replies: 28
Views: 463
Posted By Kontact

Easy to overlook.

Easy to overlook.
Forum: Bicycle Mechanics
05-27-24, 12:23 PM
Replies: 28
Views: 463
Posted By Kontact

Maybe the spokes aren't long enough?

Maybe the spokes aren't long enough?
Forum: Bicycle Mechanics
05-27-24, 12:20 PM
Replies: 26
Views: 576
Posted By Kontact

The OP appeared to be using the word ledge to...

The OP appeared to be using the word ledge to refer to the raised beadlock, not the raised area that the bead seats over - which I called a "shelf". So the three sections you posted miss one that is...
Forum: Bicycle Mechanics
05-27-24, 11:40 AM
Replies: 28
Views: 463
Posted By Kontact

Oh really? Which model is it?

Oh really? Which model is it?
Forum: Bicycle Mechanics
05-27-24, 11:34 AM
Replies: 26
Views: 576
Posted By Kontact

You don't need a slope or ledge for tubeless. The...

You don't need a slope or ledge for tubeless. The fact that the shelf has the bead under tension is enough - especially once you have tire pressure and sealant acting as a mild adhesive. I can see...
Forum: Bicycle Mechanics
05-27-24, 11:25 AM
Replies: 81
Views: 1,835
Posted By Kontact

I think you're looking at this wrong. You keep...

I think you're looking at this wrong. You keep starting with external engineering information and then try to derive bicycle practices from them. But all of this stuff is decades old, and doesn't...
Forum: Cyclocross and Gravelbiking (Recreational)
05-27-24, 10:44 AM
Replies: 23
Views: 412
Posted By Kontact

Lynskey and Litespeed do not have a reputation...

Lynskey and Litespeed do not have a reputation for weld failures, and are two of the least expensive US titanium brands.

It doesn't cost less to weld titanium poorly in the short term, and is...
Forum: Bicycle Mechanics
05-27-24, 10:37 AM
Replies: 28
Views: 463
Posted By Kontact

Brass nipples do not have a galvanic corrosion...

Brass nipples do not have a galvanic corrosion problem.


Though the ammonia in tubeless sealant will heat unplated nipples (I see you, Enve).
Forum: Cyclocross and Gravelbiking (Recreational)
05-27-24, 09:06 AM
Replies: 23
Views: 412
Posted By Kontact

I got those numbers from Litespeed's website.

I got those numbers from Litespeed's website.
Forum: Bicycle Mechanics
05-26-24, 10:38 PM
Replies: 26
Views: 576
Posted By Kontact

In all fairness to Cafelatex, this product is...

In all fairness to Cafelatex, this product is primarily a conversion strip to make normal rims into tubeless:
...
Forum: Bicycle Mechanics
05-26-24, 09:12 PM
Replies: 3
Views: 120
Posted By Kontact

The rear derailleurs aren't compatible. ...

The rear derailleurs aren't compatible.


The fronts shouldn't be a problem - very similar cable pull.
Forum: Bicycle Mechanics
05-26-24, 09:09 PM
Replies: 81
Views: 1,835
Posted By Kontact

Clamping forces really don't care about whether...

Clamping forces really don't care about whether there is a lubricant - especially when the lubricant doesn't have any particulate to prevent the clamping forces from squeezing the lube out of the...
Forum: Bicycle Mechanics
05-26-24, 07:47 PM
Replies: 28
Views: 463
Posted By Kontact

Generally speaking, if the nipple broke this way...

Generally speaking, if the nipple broke this way it is because the spokes were too short and ended before the head of the nipple. Short of buying new spokes, not a lot you can do about that.

But...
Forum: Cyclocross and Gravelbiking (Recreational)
05-26-24, 06:46 PM
Replies: 23
Views: 412
Posted By Kontact

A Litespeed Flint gravel frame is $2100 currently...

A Litespeed Flint gravel frame is $2100 currently on sale for $1600. Where are you getting your numbers? What's "roughly the same"?

I like Lynskey, but I've noticed their frame weights tend to be...
Forum: Bicycle Mechanics
05-26-24, 06:39 PM
Replies: 26
Views: 576
Posted By Kontact

So he can go to 55mm since the rim is 19mm...

So he can go to 55mm since the rim is 19mm internally.
Forum: Bicycle Mechanics
05-26-24, 02:03 PM
Replies: 81
Views: 1,835
Posted By Kontact

Most bikes ever made are steel bikes with steel...

Most bikes ever made are steel bikes with steel seatposts. No new techniques needed.
Forum: Bicycle Mechanics
05-26-24, 12:39 PM
Replies: 81
Views: 1,835
Posted By Kontact

The OPs bike is not a folder, so maybe advice...

The OPs bike is not a folder, so maybe advice that is intended for folders isn't applicable to this thread?
Forum: Bicycle Mechanics
05-26-24, 11:59 AM
Replies: 26
Views: 576
Posted By Kontact

There is a ledge. You can see the ledge in the...

There is a ledge. You can see the ledge in the cross section I posted - it even slopes toward the bead to keep the bead seated. That's a XR26T rim.

I haven't used Cafelatex, but I suspect that...
Forum: Bicycle Mechanics
05-26-24, 11:26 AM
Replies: 81
Views: 1,835
Posted By Kontact

As seen in multiple threads, you have some weird...

As seen in multiple threads, you have some weird ideas about lubricants - and many of them are wrong. Maybe stop offering advice about them?


And anyone drilling a hole right about the seat tube...
Forum: Bicycle Mechanics
05-26-24, 11:23 AM
Replies: 81
Views: 1,835
Posted By Kontact

You're going to seize your post in place by not...

You're going to seize your post in place by not greasing it. That's basic bike mechanics.
Forum: Bicycle Mechanics
05-26-24, 11:06 AM
Replies: 26
Views: 576
Posted By Kontact

1. You chose the wrong rim strip. Certain...

1. You chose the wrong rim strip. Certain tire/rim combinations require thicker rim strips to work right, and tape strips are the easiest way to make that happen with additional layers.
2. A...
Forum: Tandem Cycling
05-25-24, 11:42 AM
Replies: 9
Views: 244
Posted By Kontact

You can't make a spindle longer by adding...

You can't make a spindle longer by adding spacers. Spacers make the spindle effectively shorter.
Forum: Framebuilders
05-25-24, 11:38 AM
Replies: 59
Views: 2,647
Posted By Kontact

Nitrogen embrittlement isn't a real thing. That's...

Nitrogen embrittlement isn't a real thing. That's why Jordanjw is posting articles that are little more than advertising on commercial websites written by experts like "Brian".

Nitrogen is used...
Forum: Bicycle Mechanics
05-24-24, 11:49 PM
Replies: 29
Views: 706
Posted By Kontact

You should google "oilslick chain" sometime. ...

You should google "oilslick chain" sometime.

rosefarts Thanks for trying that out. I'm surprised you could get it to latch - I wonder if a new link or new chain would have closed.
Forum: Framebuilders
05-24-24, 11:39 PM
Replies: 59
Views: 2,647
Posted By Kontact

How did you come to decide to be concerned by...

How did you come to decide to be concerned by nitrogen embrittlement in an application that doesn't have a high failure rate?

It also seems that the nitrogen embrittlement of concern is not from...
Forum: Tandem Cycling
05-23-24, 07:35 PM
Replies: 9
Views: 244
Posted By Kontact

Should work, as long as you have a 68mm bottom...

Should work, as long as you have a 68mm bottom bracket width.
Forum: Classic & Vintage
05-23-24, 05:29 PM
Replies: 33
Views: 1,409
Posted By Kontact

If you look at 3670 in the diagram, it has the...

If you look at 3670 in the diagram, it has the flat sided hole so it can't rotate on the flat sided braze on boss. If it can't rotate, it can't turn the screw head.

Of course, all friction...
Forum: Framebuilders
05-23-24, 05:16 PM
Replies: 14
Views: 380
Posted By Kontact

If the dropouts were wrong height wise, that...

If the dropouts were wrong height wise, that would cause the top of the wheel to be right or left of center. The seat stays are the ones by the top of the wheel, so if the wheel is centered in the...
Forum: Framebuilders
05-22-24, 08:50 PM
Replies: 14
Views: 380
Posted By Kontact

Normally with track bikes you have to center the...

Normally with track bikes you have to center the wheel in the chainstays by adjusting where in the horizontal dropouts you tighten the bolts down. How does that not apply to your bike?
...
Forum: Bicycle Mechanics
05-22-24, 07:16 PM
Replies: 29
Views: 706
Posted By Kontact

I don't see a quick link in your Rival photo. ...

I don't see a quick link in your Rival photo.

Do you have the ability to try a SRAM road 12 link in a different chain?
Forum: Fitting Your Bike
05-22-24, 05:36 PM
Replies: 28
Views: 984
Posted By Kontact

There is no perfect math equation for this. The...

There is no perfect math equation for this. The easiest thing is to look at the website of the brand and check the recommendations based on height.

In general, if the sizes are "classic", you can...
Forum: Classic & Vintage
05-21-24, 05:52 PM
Replies: 5
Views: 189
Posted By Kontact

$8: ...

$8:
...
Forum: Framebuilders
05-21-24, 05:49 PM
Replies: 14
Views: 380
Posted By Kontact

That's what I figured, but wanted to ask in case...

That's what I figured, but wanted to ask in case the secret framebuilder coven had a better solution.
Forum: Classic and Vintage Sales
05-21-24, 05:46 PM
Replies: 3
Views: 261
Posted By Kontact

I'll take em!

I'll take em!
Forum: Framebuilders
05-21-24, 01:01 PM
Replies: 14
Views: 380
Posted By Kontact

Once the top has been opened with a file, can one...

Once the top has been opened with a file, can one close up the bottom via bending?
Forum: Fitting Your Bike
05-20-24, 09:42 PM
Replies: 5
Views: 226
Posted By Kontact

Stack or stack+ is just a vertical measure. But...

Stack or stack+ is just a vertical measure. But reach is goofy because it relates to stuff that is constantly modified by the angled steerer when you compare two bikes, raise your stem, etc.
Forum: Classic & Vintage
05-20-24, 08:10 PM
Replies: 17
Views: 531
Posted By Kontact

Wait until you guys come across a 25.8 stem!

Wait until you guys come across a 25.8 stem!
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