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Search: Posts Made By: Kontact
Showing results 1 to 50 of 1000
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Forum: Bicycle Mechanics
04-25-24, 07:24 AM
Replies: 6
Views: 107
Posted By Kontact

Are these headset seals you're describing? How...

Are these headset seals you're describing? How did you move the crown race from the old fork to the new one?
Forum: Bicycle Mechanics
04-25-24, 06:47 AM
Replies: 8
Views: 172
Posted By Kontact

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/1800x1800/barrel_adjuster_clean_1800x1800_8b1c467d70ae820f2ba3241143cbf8d678602059.jpg
Chuck a steel barrel adjuster in the drill press and turn...
Forum: Bicycle Mechanics
04-25-24, 06:34 AM
Replies: 52
Views: 1,269
Posted By Kontact

That is what you are claiming.

That is what you are claiming.
Forum: Bicycle Mechanics
04-25-24, 06:33 AM
Replies: 29
Views: 741
Posted By Kontact

See post #13.

See post #13.
Forum: Bicycle Mechanics
04-25-24, 06:30 AM
Replies: 52
Views: 1,269
Posted By Kontact

Not really. Aside from many derailleurs having a...

Not really. Aside from many derailleurs having a fairly obvious capacity, you can check it simply by putting the amount of chain you've measured from small small on the Big Big before cutting. Pretty...
Forum: Road Cycling
04-24-24, 10:21 PM
Replies: 43
Views: 710
Posted By Kontact

That's why I posted those Heds. But all the...

That's why I posted those Heds.

But all the aero wheels had aluminum braking surfaces in the past, until that wasn't light enough. Then that didn't brake well enough, and now we have disks. And if...
Forum: Classic & Vintage
04-24-24, 09:44 PM
Replies: 11
Views: 431
Posted By Kontact

My experience buying used bikes is that the $500...

My experience buying used bikes is that the $500 bikes from the '80s are often $100 on today's used market. With such nice bikes available, it seems like you might consider upgrading to a fancier...
Forum: Road Cycling
04-24-24, 09:23 PM
Replies: 43
Views: 710
Posted By Kontact

Why not just get these? They aren't even heavy. ...

Why not just get these? They aren't even heavy.

https://hedcycling.com/collections/road-tri/products/jet-rc-performance-series
Forum: Bicycle Mechanics
04-24-24, 09:03 PM
Replies: 52
Views: 1,269
Posted By Kontact

The previous guy might have also installed...

The previous guy might have also installed gearing that has no correct chain length. My MTB chain is "too long", but I don't shift into those gears.

I was just speaking about replacing the chain...
Forum: Bicycle Mechanics
04-24-24, 09:00 PM
Replies: 29
Views: 401
Posted By Kontact

Glue 'em! Tape 'em! Or buy one of these for...

Glue 'em! Tape 'em!

Or buy one of these for $8:

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/750x750/s_l1600_744853df7d9ccde7c8e23584bf4accecfa3d5ff4.jpg



But I'm still in favor...
Forum: Touring
04-24-24, 08:54 PM
Replies: 13
Views: 193
Posted By Kontact

How about putting a smaller dangling handlebar...

How about putting a smaller dangling handlebar pack backwards under the stem and behind the tent pack?
...
Forum: Touring
04-24-24, 08:48 PM
Replies: 13
Views: 193
Posted By Kontact

Might be a problem with the cables on the OP's...

Might be a problem with the cables on the OP's bike.
Forum: Bicycle Mechanics
04-24-24, 08:41 PM
Replies: 61
Views: 1,498
Posted By Kontact

What front derailleur makes that work?

What front derailleur makes that work?
Forum: Bicycle Mechanics
04-24-24, 08:36 PM
Replies: 52
Views: 1,269
Posted By Kontact

They were simple devices. The current Shimano...

They were simple devices. The current Shimano front derailleurs are anything but. And it isn't necessary.

In many ways, modern bikes are more problematic than the ones they replaced. But you get...
Forum: Bicycle Mechanics
04-24-24, 08:12 PM
Replies: 52
Views: 1,269
Posted By Kontact

The problem we see in this forum, over and over,...

The problem we see in this forum, over and over, is that people don't know what they don't know. If you have a bike already and you buy a chain, the only instructions you're aware of are the ones in...
Forum: Touring
04-24-24, 08:06 PM
Replies: 13
Views: 193
Posted By Kontact

How about adding a center strap to lift the...

How about adding a center strap to lift the center bottom of the pack over the tire?
Forum: Bicycle Mechanics
04-24-24, 07:58 PM
Replies: 52
Views: 1,269
Posted By Kontact

Obvious to everyone?

Obvious to everyone?
Forum: Bicycle Mechanics
04-24-24, 07:57 PM
Replies: 29
Views: 401
Posted By Kontact

We all forgot the perfect fitting spacer to...

We all forgot the perfect fitting spacer to replace the stem: A stack of headset spacers.
Forum: Bicycle Mechanics
04-24-24, 07:54 PM
Replies: 52
Views: 1,269
Posted By Kontact

Nothing wrong with doing so, except that chain...

Nothing wrong with doing so, except that chain length instructions for Shimano come with the derailleur, but SRAM come with the chain. If you buy a SRAM chain for your Shimano derailleur bike, which...
Forum: Classic & Vintage
04-24-24, 07:48 PM
Replies: 11
Views: 431
Posted By Kontact

The 1986 catalog is of "lightweights", not the...

The 1986 catalog is of "lightweights", not the whole product line. Researching tons of bikes online, I have found tons of missing catalogs - they only exist if someone bothered to scan them.


I...
Forum: Bicycle Mechanics
04-24-24, 07:43 PM
Replies: 34
Views: 529
Posted By Kontact

Yet:

Yet:
Forum: Bicycle Mechanics
04-24-24, 06:43 PM
Replies: 34
Views: 529
Posted By Kontact

As I already described, your pads are mounted at...

As I already described, your pads are mounted at different height and different angles compared to the brake arm. I even estimated those angles as 90 on the left and more like 60 degrees on the...
Forum: Bicycle Mechanics
04-24-24, 05:15 PM
Replies: 52
Views: 1,269
Posted By Kontact

I would enjoy reading that debate...

I would enjoy reading that debate...
Forum: Classic & Vintage
04-24-24, 05:11 PM
Replies: 25
Views: 488
Posted By Kontact

If you keep retightening your crank with the same...

If you keep retightening your crank with the same torque setting, you should second guess what you are doing.
Forum: Classic & Vintage
04-24-24, 05:10 PM
Replies: 25
Views: 488
Posted By Kontact

If the bolt is at torque. But as I already...

If the bolt is at torque. But as I already carefully explained, it probably will not be. So the bolt will turn however far it needs to for torque to get to the wrench setting, at which point you have...
Forum: Bicycle Mechanics
04-24-24, 05:07 PM
Replies: 34
Views: 529
Posted By Kontact

Or maybe he could put the wheel in backwards.

Or maybe he could put the wheel in backwards.
Forum: Bicycle Mechanics
04-24-24, 05:02 PM
Replies: 61
Views: 1,498
Posted By Kontact

People did stuff like this 40 years ago. And...

People did stuff like this 40 years ago. And stopped. Bikes are semi trucks - you don't start in 1 and work your way up to 21. The reason this kind of gearing sucks is that we normally ride in the...
Forum: Bicycle Mechanics
04-24-24, 02:10 PM
Replies: 34
Views: 529
Posted By Kontact

That's not a U brake.

That's not a U brake.
Forum: Bicycle Mechanics
04-24-24, 02:06 PM
Replies: 29
Views: 741
Posted By Kontact

That it will damage the bearings. The spindle...

That it will damage the bearings. The spindle doesn't move in the bearing. The inner bearing race turns with the spidle. A few grooves isn't going to cause their largely static relationship to cause...
Forum: Bicycle Mechanics
04-24-24, 11:58 AM
Replies: 52
Views: 1,269
Posted By Kontact

Small small is best as long as you know the total...

Small small is best as long as you know the total capacity doesn't exceed the derailleur capacity. Max chain length puts less wear on the drivetrain and future proofs the bike against a larger...
Forum: Bicycle Mechanics
04-24-24, 11:20 AM
Replies: 29
Views: 741
Posted By Kontact

Who told you that?

Who told you that?
Forum: Bicycle Mechanics
04-24-24, 09:37 AM
Replies: 34
Views: 529
Posted By Kontact

The wheel is off center.

The wheel is off center.
Forum: Bicycle Mechanics
04-24-24, 08:32 AM
Replies: 34
Views: 529
Posted By Kontact

It shouldn't, if you bring the angle down as...

It shouldn't, if you bring the angle down as well.

The question is whether you want to ride the bike or diagnose the wheel problem. Did you try putting the wheel in backwards to see if it offers...
Forum: Classic & Vintage
04-24-24, 08:28 AM
Replies: 25
Views: 488
Posted By Kontact

Why push the crank on further by doing this?

Why push the crank on further by doing this?
Forum: Classic & Vintage
04-24-24, 06:48 AM
Replies: 6
Views: 169
Posted By Kontact

Here's the bike on page 23: ...

Here's the bike on page 23:
https://www.retrobike.co.uk/gallery2/d/98755-2/1996_20treksmaller.pdf

It is a stem match in construction, just not angle. It certainly could have been the stem the...
Forum: Classic & Vintage
04-23-24, 09:54 PM
Replies: 11
Views: 431
Posted By Kontact

I'd agree with '87 or so. They used similar...

I'd agree with '87 or so. They used similar colors on Techniums in this period.

This is a high tensile steel frame, bolt rear hub, friction shifting and QR front. Kind of like Record or Capri in...
Forum: Classic & Vintage
04-23-24, 09:05 PM
Replies: 17
Views: 426
Posted By Kontact

I don't see how this could be from the mid-late...

I don't see how this could be from the mid-late '80s. It has a top run rear derailleur cable and doesn't appear to have any sort of normal cable system for the rear cantilever. And isn't that a 1...
Forum: Classic & Vintage
04-23-24, 08:28 PM
Replies: 25
Views: 488
Posted By Kontact

That's a sort of misunderstanding of how tapered...

That's a sort of misunderstanding of how tapered spindle cranks work. The torque measured on the torque wrench isn't tension, but a measure of the work to get the crank seated firmly on the spindle....
Forum: Bicycle Mechanics
04-23-24, 08:09 PM
Replies: 34
Views: 529
Posted By Kontact

The left pad is at the top of the adjustment slot...

The left pad is at the top of the adjustment slot and 90 degrees to the arm. The right pad is much lower, but angled up at least 30 degrees above perpendicular.

I don't see how you can tell...
Forum: Bicycle Mechanics
04-23-24, 07:50 PM
Replies: 7
Views: 278
Posted By Kontact

Maybe I missed someone saying it, but the axle...

Maybe I missed someone saying it, but the axle with the two flats is made like that so it can't rotate in the dropouts, which makes it challenging sometimes to slide the axle into the dropouts...
Forum: Bicycle Mechanics
04-23-24, 07:26 PM
Replies: 29
Views: 401
Posted By Kontact

You don't clamp this with 5nM of force. You just...

You don't clamp this with 5nM of force. You just tighten it enough to not slide when the stem is off and the bike has no weight on it. In fact, you could leave it just snug when riding, but only...
Forum: Bicycle Mechanics
04-23-24, 05:52 PM
Replies: 29
Views: 401
Posted By Kontact

When I box bikes for shipping, I cut a strip of...

When I box bikes for shipping, I cut a strip of cardboard the height of the stem and wrap it around the steerer and then tape to form a cylinder. Then put the cap on. You can slide it off and reuse...
Forum: Bicycle Mechanics
04-23-24, 12:35 PM
Replies: 43
Views: 702
Posted By Kontact

With the cable disconnected, can you move the...

With the cable disconnected, can you move the derailleur the right distance with your hand?
Forum: Bicycle Mechanics
04-23-24, 12:00 PM
Replies: 52
Views: 1,269
Posted By Kontact

Wait, are you saying the chain is too short? Like...

Wait, are you saying the chain is too short? Like it isn't long enough?
Forum: Bicycle Mechanics
04-23-24, 11:08 AM
Replies: 52
Views: 1,269
Posted By Kontact

The chain is too short.

The chain is too short.
Forum: Bicycle Mechanics
04-22-24, 11:07 PM
Replies: 61
Views: 1,498
Posted By Kontact

But, that is ugly no-name potential garbage. The...

But, that is ugly no-name potential garbage. The OP has a nice all RX100 group, and maybe just slapping random stuff in its place is unappealing. It's unappealing to me.

The OP could also find...
Forum: Bicycle Mechanics
04-22-24, 10:50 PM
Replies: 61
Views: 1,498
Posted By Kontact

The cranks weigh differently, recall the shifters...

The cranks weigh differently, recall the shifters were different, etc. Not the same.
Forum: Bicycle Mechanics
04-22-24, 09:47 PM
Replies: 43
Views: 702
Posted By Kontact

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/364x528/image_22d86c7c52130173c8fa7859cc06e9c51c67922f.png

Lower left?
Forum: Bicycle Mechanics
04-22-24, 08:04 PM
Replies: 61
Views: 1,498
Posted By Kontact

I hate to go against the popular theme, but you...

I hate to go against the popular theme, but you can buy a pair of replacement 53/39t chainrings for $30 delivered. So it isn't cheaper to replace the whole crankset.
Forum: Classic & Vintage
04-22-24, 09:31 AM
Replies: 25
Views: 777
Posted By Kontact

They can ghost shift if not tight enough.

They can ghost shift if not tight enough.
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