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Search: Posts Made By: Kontact
Showing results 1 to 50 of 1000
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Forum: Commuting
06-14-24, 08:26 PM
Replies: 8
Views: 174
Posted By Kontact

My big revelation with flats was that they...

My big revelation with flats was that they happened anytime I tried to ride on Veloflex tires.
Forum: Bicycle Mechanics
06-14-24, 08:21 PM
Replies: 25
Views: 436
Posted By Kontact

Folding bikes don't really matter since they...

Folding bikes don't really matter since they don't have carbon steerers.

There is no limit on steel steerer length. All steerer designs were originally steel - and then other materials were...
Forum: Bicycle Mechanics
06-14-24, 07:20 PM
Replies: 52
Views: 5,516
Posted By Kontact

Drop a ping pong and ball bearing from a...

Drop a ping pong and ball bearing from a building, the ball bearing hits first because it has a higher terminal velocity. Gravity acts on its greater mass to overcome air resistance much more than...
Forum: Fitting Your Bike
06-14-24, 12:19 PM
Replies: 4
Views: 94
Posted By Kontact

Right now you just need to move the saddle to...

Right now you just need to move the saddle to where you are already trying to sit on it, rather than a new position.
Forum: Fitting Your Bike
06-14-24, 09:14 AM
Replies: 4
Views: 94
Posted By Kontact

Set back seat posts are the norm for road bikes....

Set back seat posts are the norm for road bikes. I don't know why zero setback posts ever became common on them.
Forum: Bicycle Mechanics
06-13-24, 09:58 PM
Replies: 25
Views: 436
Posted By Kontact

The absurdity with this is that manufacturers...

The absurdity with this is that manufacturers feel that adding 5mm of additional spacer is something to be prohibited, but going to a flat bar is not. Talk about a cantilever structure - many flat...
Forum: Bicycle Mechanics
06-13-24, 09:11 PM
Replies: 14
Views: 430
Posted By Kontact

I don't think you understand this hub. The end...

I don't think you understand this hub. The end cap and collar compress the outer race, not the inner. Then that collar locks onto the axle. If the axle is compressed, it is going to compress the...
Forum: Bicycle Mechanics
06-13-24, 06:12 PM
Replies: 25
Views: 436
Posted By Kontact

Nope. There is no limit on bar width or st...

Nope. There is no limit on bar width or st length, which are a much greater proportion of leverage.
Forum: Bicycle Mechanics
06-13-24, 01:29 PM
Replies: 25
Views: 436
Posted By Kontact

The spacers themselves don't offer any real...

The spacers themselves don't offer any real lateral support.

Don't push it. Heavy people need the opposite of ultralight parts.
Forum: Bicycle Mechanics
06-13-24, 07:31 AM
Replies: 14
Views: 430
Posted By Kontact

You didn't read the directions. They do not say...

You didn't read the directions. They do not say to take up axle play, they say to remove bearing play between the collar and the hub body, which doesn't involve the center section of the bearing. The...
Forum: Classic and Vintage Sales
06-12-24, 05:31 PM
Replies: 4
Views: 111
Posted By Kontact

Cartridge is the only thing that will work on a...

Cartridge is the only thing that will work on a spindle that short. I've had good luck with no-name cheapies off eBay or Amazon. I also have a 7410 crank.
Forum: Bicycle Mechanics
06-12-24, 02:01 PM
Replies: 52
Views: 1,056
Posted By Kontact

ARe you talking about wire crimps or housing...

ARe you talking about wire crimps or housing ferrules? Topic is housing ferrules.
Forum: Bicycle Mechanics
06-12-24, 11:21 AM
Replies: 52
Views: 1,056
Posted By Kontact

Iride01 You must come from a country where "no...

Iride01 You must come from a country where "no need" and "no reason" aren't synonymous.

And you're the one doing the calling out.
Forum: Bicycle Mechanics
06-12-24, 10:46 AM
Replies: 52
Views: 1,056
Posted By Kontact

Nope. You and kaputsa said that there is no...

Nope. You and kaputsa said that there is no reason to do it. Which is entirely different than saying that YOU have no reason to do it.
Forum: Bicycle Mechanics
06-12-24, 09:23 AM
Replies: 52
Views: 1,056
Posted By Kontact

How do you use heat shrink on a ferrule????

How do you use heat shrink on a ferrule????
Forum: Bicycle Mechanics
06-12-24, 09:22 AM
Replies: 52
Views: 1,056
Posted By Kontact

Two people said there is no reason.

Two people said there is no reason.
Forum: Bicycle Mechanics
06-12-24, 06:50 AM
Replies: 52
Views: 1,056
Posted By Kontact

Metal is normally used for 5mm housing because...

Metal is normally used for 5mm housing because the walls are only .25mm thick or less. I don't know how that would work with plastic, and I've never seen plastic ferrules that thin. I wouldn't use...
Forum: Bicycle Mechanics
06-12-24, 06:44 AM
Replies: 86
Views: 3,931
Posted By Kontact

I live at the high point of Seattle and usually...

I live at the high point of Seattle and usually use 39x26 as my lowest gear, but two bikes have a 42x26. And that was the same gearing I was using in the Blue Mounds area of Wisconsin - some of the...
Forum: Classic & Vintage
06-11-24, 06:50 PM
Replies: 16
Views: 378
Posted By Kontact

I have these on my Mavic bike and love them....

I have these on my Mavic bike and love them. Almost all plastic.

Very cool bike. I just bought a Giant 890c to have something a little like this.
Forum: Road Cycling
06-11-24, 06:46 PM
Replies: 11
Views: 320
Posted By Kontact

Perhaps he was talking about chainring spacing -...

Perhaps he was talking about chainring spacing - Shimano flares the rings apart on 11 speed. But that isn't what he was describing. It sounds more like he was assuming that chain widths are inner,...
Forum: Bicycle Mechanics
06-11-24, 06:31 PM
Replies: 52
Views: 1,056
Posted By Kontact

As I already pointed out the crimper is for 5mm...

As I already pointed out the crimper is for 5mm housing ferrules. Which aren't made of plastic.
Forum: Bicycle Mechanics
06-11-24, 06:29 PM
Replies: 52
Views: 1,056
Posted By Kontact

On the contrary, the assumption of several...

On the contrary, the assumption of several posters was that there was NEVER a reason to crimp. So I offered an example.
Forum: Bicycle Mechanics
06-11-24, 12:02 PM
Replies: 52
Views: 1,056
Posted By Kontact

Then you haven't dealt with a lot of older aero...

Then you haven't dealt with a lot of older aero brake levers. I have, crimping helps.
Forum: Bicycle Mechanics
06-10-24, 07:35 PM
Replies: 14
Views: 284
Posted By Kontact

You can make a "tap" at home by filing or...

You can make a "tap" at home by filing or grinding a slot in a steel screw (of the correct dimensions), and turning that in and out of the threaded hole. A dremel cutting disc makes this really easy....
Forum: Bicycle Mechanics
06-10-24, 05:08 PM
Replies: 52
Views: 1,056
Posted By Kontact

Once again, this hex shape is for ferrules, not...

Once again, this hex shape is for ferrules, not wire crimps. It doesn't crush the housing at all, but creates 6 flats that wedge onto the housing so it can't easily fall off when you are doing things...
Forum: Bicycle Mechanics
06-10-24, 12:28 PM
Replies: 52
Views: 1,056
Posted By Kontact

The tools shown in the pictures are for the...

The tools shown in the pictures are for the housing ferrules.
Forum: Classic & Vintage
06-10-24, 11:25 AM
Replies: 18
Views: 488
Posted By Kontact

Like I already said, 5mm shifts will be fine if I...

Like I already said, 5mm shifts will be fine if I can get them to work across an entire 4.8 cassette.
Forum: Bicycle Mechanics
06-10-24, 11:22 AM
Replies: 13
Views: 639
Posted By Kontact

A bike shop.

A bike shop.
Forum: Bicycle Mechanics
06-10-24, 06:43 AM
Replies: 14
Views: 284
Posted By Kontact

Get a $3 can of Barkeeper's friend, and apply it...

Get a $3 can of Barkeeper's friend, and apply it with a wet sponge. The oxalic acid will eat the surface rust without affecting the paint. Neutralize when done.
Forum: Bicycle Mechanics
06-10-24, 06:35 AM
Replies: 86
Views: 3,931
Posted By Kontact

Are you kidding? 39 x 23 is not a "high gear" by...

Are you kidding? 39 x 23 is not a "high gear" by any means, and will get you up most any paved road in North America if you are out of the saddle.

The fact that there are 3-4 overlap gear...
Forum: Bicycle Mechanics
06-09-24, 10:21 PM
Replies: 18
Views: 524
Posted By Kontact

Worse, but only for one revolution.

Worse, but only for one revolution.
Forum: Bicycle Mechanics
06-09-24, 10:20 PM
Replies: 86
Views: 3,931
Posted By Kontact

Or they could have done the crank second. Who...

Or they could have done the crank second. Who said one precluded the other?

The point I was making was that cassette could have been the only item replaced and would have yielded lower gearing for...
Forum: Bicycle Mechanics
06-09-24, 10:17 PM
Replies: 64
Views: 2,002
Posted By Kontact

304 does get stronger with cold working - but...

304 does get stronger with cold working - but that isn't comparable to piano wire which is at the other end of the spectrum. It is more like removing the low strength annealed structure.by ironing it...
Forum: Bicycle Mechanics
06-09-24, 08:22 PM
Replies: 64
Views: 2,002
Posted By Kontact

So you didn't believe me. Spokes are 304...

So you didn't believe me.

Spokes are 304 stainless - which is easy to look up on the internet. 304 has zero carbon or nitrogen to act as a hardening agent. Just iron, nickel and chrome.

In the...
Forum: Classic & Vintage
06-09-24, 06:26 PM
Replies: 18
Views: 488
Posted By Kontact

The point I was making is that the Aris...

The point I was making is that the Aris freewheels didn't shift magically better. I see absolutely no reason that 12-21 Winner with a modern chain wouldn't shift just fine, or that a Sachs would...
Forum: Advocacy & Safety
06-09-24, 01:21 PM
Replies: 16
Views: 690
Posted By Kontact

"Thank you for your service."

"Thank you for your service."
Forum: Bicycle Mechanics
06-09-24, 11:12 AM
Replies: 25
Views: 630
Posted By Kontact

68mm? Hmm, I thought they were wider. Maybe it is...

68mm? Hmm, I thought they were wider. Maybe it is more the bearing location that is wide. It certainly doesn't look like anything shorter than what you have would stick out enough past the bearings...
Forum: Classic & Vintage
06-09-24, 10:13 AM
Replies: 18
Views: 488
Posted By Kontact

Shimano 7 and Campy 7 speed are both 5.0mm...

Shimano 7 and Campy 7 speed are both 5.0mm spacing. The 8 speeds are different.

Here's a listing of Aris freewheels:
http://www.bikepro.com/products/freewheels/sachs.shtml
Forum: Classic & Vintage
06-09-24, 09:08 AM
Replies: 18
Views: 488
Posted By Kontact

The best shifting 7 speed freewheels are the ones...

The best shifting 7 speed freewheels are the ones being made now by Sunrace and similar. Correct spacing, HG ramps and chrome. They are cheap and work much better than an old Sachs or Dura Ace...
Forum: Classic & Vintage
06-09-24, 12:50 AM
Replies: 18
Views: 488
Posted By Kontact

I doubt the spacing will be an issue. I've used 7...

I doubt the spacing will be an issue. I've used 7 speed Shimano (5.0mm spacing) on Shimano 8 speed cassettes (4.8mm spacing) and there was no problem with shifting or noise.
Forum: Classic & Vintage
06-08-24, 09:54 PM
Replies: 3
Views: 141
Posted By Kontact

So ream the fork and steerer to ISO.

So ream the fork and steerer to ISO.
Forum: Advocacy & Safety
06-08-24, 11:39 AM
Replies: 18
Views: 896
Posted By Kontact

This guy should have his bike taken away. So...

This guy should have his bike taken away.

So should triathletes.
Forum: Bicycle Mechanics
06-08-24, 10:47 AM
Replies: 64
Views: 2,002
Posted By Kontact

None of this applies to spokes, which are made of...

None of this applies to spokes, which are made of a simple stainless that is not hardenable. It is one of the least strong steels - but it is steel, and steel is strong.
Forum: Bicycle Mechanics
06-08-24, 10:42 AM
Replies: 64
Views: 2,002
Posted By Kontact

Those charts are of breaking strength, not yield.

Those charts are of breaking strength, not yield.
Forum: Bicycle Mechanics
06-08-24, 10:35 AM
Replies: 86
Views: 3,931
Posted By Kontact

I'm glad you found a solution that works for you....

I'm glad you found a solution that works for you.

For anyone following the thread, the OP could have also replaced just his cassette with a 11-28 for $25 + labor and gotten a lower climbing gear...
Forum: Classic & Vintage
06-08-24, 10:25 AM
Replies: 54
Views: 2,073
Posted By Kontact

Trek has a 22% market share.

Trek has a 22% market share.
Forum: Classic & Vintage
06-07-24, 11:23 PM
Replies: 54
Views: 2,073
Posted By Kontact

McDonalds, Nike, Gucci, Apple, Gap, Yankee...

McDonalds, Nike, Gucci, Apple, Gap, Yankee Candle, etc, etc, etc.
Forum: Road Cycling
06-07-24, 11:19 PM
Replies: 11
Views: 320
Posted By Kontact

That label refers to the kind of chain, not what...

That label refers to the kind of chain, not what else is on the bike.

An 11 speed chainring will work with 5 - 11 speed chains just fine. They have the same inner dimensions that interact with the...
Forum: Bicycle Mechanics
06-07-24, 11:58 AM
Replies: 3
Views: 230
Posted By Kontact

I have a Chin Hur off eBay in ISO that works...

I have a Chin Hur off eBay in ISO that works great and was $18. Miche is another good source.
Forum: Bicycle Mechanics
06-07-24, 07:12 AM
Replies: 14
Views: 470
Posted By Kontact

Yeah, the pads are so off from each other that it...

Yeah, the pads are so off from each other that it suggests you don't have the wheel in straight.
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