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Search: Posts Made By: Kontact
Showing results 1 to 50 of 1000
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Forum: Classic & Vintage
06-03-24, 09:00 PM
Replies: 84
Views: 1,419
Posted By Kontact

It may well be strong enough. But it was...

It may well be strong enough. But it was incredibly unnecessary to get aluminum out of steel. A single large drill bit from the top would have done 80% of the work.
Forum: Classic and Vintage Sales
06-02-24, 08:48 PM
Replies: 6
Views: 424
Posted By Kontact

Price lowered to $100 plus shipping. It's a...

Price lowered to $100 plus shipping. It's a really nice lugged frame.
Forum: Road Cycling
06-02-24, 08:36 PM
Replies: 36
Views: 722
Posted By Kontact

The OP got 11,000 miles out of his garbage Trek...

The OP got 11,000 miles out of his garbage Trek wheels.

One thing that gets done wrong, including by shops, is that they seat the bearings too far in to the hub body and they bind against the axle...
Forum: Road Cycling
06-02-24, 01:51 PM
Replies: 36
Views: 722
Posted By Kontact

It takes about 30 minutes to remove and replace...

It takes about 30 minutes to remove and replace every cartridge bearing in a rear cassette hub. That would cost maybe $100 at most, and should last several years. There is just no economics that...
Forum: Singlespeed & Fixed Gear
06-02-24, 12:17 PM
Replies: 3
Views: 111
Posted By Kontact

Seems like the issue is chainstay clearance near...

Seems like the issue is chainstay clearance near the BB for big tires, so they went to wider crank spacing to accomplish chainring clearance around the wider chainstays. That made a wider hub...
Forum: Road Cycling
06-02-24, 12:06 PM
Replies: 36
Views: 722
Posted By Kontact

I'd consider a new bike shop.

I'd consider a new bike shop.
Forum: Cyclocross and Gravelbiking (Recreational)
06-01-24, 07:55 AM
Replies: 35
Views: 936
Posted By Kontact

Given Seven's connection to Merlin, I give them...

Given Seven's connection to Merlin, I give them similar credit.
Forum: Bicycle Mechanics
05-31-24, 08:08 AM
Replies: 23
Views: 709
Posted By Kontact

I was suggesting the OP change his general...

I was suggesting the OP change his general approach to diagnosis moving forward.


You've chastised me twice now for a single post. I get it. You can stop.
Forum: Bicycle Mechanics
05-30-24, 06:56 AM
Replies: 23
Views: 709
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: 333
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: 21
Views: 526
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: 588
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: 333
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: 21
Views: 526
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: 263
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: 11
Views: 479
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: 9
Views: 454
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: 35
Views: 936
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: 604
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: 35
Views: 936
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: 604
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: 604
Posted By Kontact

Easy to overlook.

Easy to overlook.
Forum: Bicycle Mechanics
05-27-24, 12:23 PM
Replies: 28
Views: 604
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: 700
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: 604
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: 700
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: 2,132
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: 35
Views: 936
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: 604
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: 35
Views: 936
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: 700
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: 160
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: 2,132
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: 604
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: 35
Views: 936
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: 700
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: 2,132
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: 2,132
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: 700
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: 2,132
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: 2,132
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: 700
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: 10
Views: 338
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: 2,847
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: 815
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: 2,847
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: 10
Views: 338
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: 1,505
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: 442
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: 442
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?
...
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