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Search: Posts Made By: Kontact
Showing results 1 to 50 of 1000
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Forum: Classic & Vintage
04-23-24, 09:05 PM
Replies: 8
Views: 125
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: 6
Views: 68
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: 8
Views: 101
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: 6
Views: 138
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: 9
Views: 106
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: 9
Views: 106
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: 558
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: 11
Views: 203
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: 11
Views: 203
Posted By Kontact

The chain is too short.

The chain is too short.
Forum: Bicycle Mechanics
04-22-24, 11:07 PM
Replies: 45
Views: 952
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: 45
Views: 952
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: 558
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: 45
Views: 952
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: 697
Posted By Kontact

They can ghost shift if not tight enough.

They can ghost shift if not tight enough.
Forum: Bicycle Mechanics
04-21-24, 06:54 PM
Replies: 48
Views: 25,583
Posted By Kontact

Okay. But it still exists.

Okay. But it still exists.
Forum: Bicycle Mechanics
04-21-24, 06:52 PM
Replies: 45
Views: 952
Posted By Kontact

And why bother with that, when the OP has such a...

And why bother with that, when the OP has such a narrow gear range right now and may get everything he needs with a 28t low cog? There are lots of places where the hills are neither particularly...
Forum: Bicycle Mechanics
04-21-24, 06:10 PM
Replies: 48
Views: 25,583
Posted By Kontact

It had one when you posted

See above.
Forum: Fitting Your Bike
04-21-24, 12:40 PM
Replies: 51
Views: 2,114
Posted By Kontact

I would go on everything you can find. Ask the...

I would go on everything you can find. Ask the local cycling club, ask shops that don't offer it, read the Google reviews, look for online discussion based on your city. The best you are going to do...
Forum: Bicycle Mechanics
04-21-24, 10:50 AM
Replies: 6
Views: 167
Posted By Kontact

https://wheelsmfg.com/bottom-brackets/trek-bb90-95...

https://wheelsmfg.com/bottom-brackets/trek-bb90-95.html
Forum: Bicycle Mechanics
04-21-24, 09:56 AM
Replies: 45
Views: 952
Posted By Kontact

You can't put 50x34 chainrings on a 130BCD crank.

You can't put 50x34 chainrings on a 130BCD crank.
Forum: Bicycle Mechanics
04-21-24, 08:29 AM
Replies: 45
Views: 952
Posted By Kontact

Because of all those 8 speed freewheels...

Because of all those 8 speed freewheels Cannondale used?

It's a cassette.
Forum: Bicycle Mechanics
04-21-24, 08:27 AM
Replies: 48
Views: 25,583
Posted By Kontact

Read the title line of his post.

Read the title line of his post.
Forum: Road Cycling
04-21-24, 08:15 AM
Replies: 24
Views: 723
Posted By Kontact

This is kind of weird engineering problem. On the...

This is kind of weird engineering problem. On the one hand, if you want something to flex more easily, building a curve into it should encourage it to flex with that curve. On the other hand,...
Forum: Bicycle Mechanics
04-21-24, 08:08 AM
Replies: 27
Views: 728
Posted By Kontact

Huh?

Huh?
Forum: Classic & Vintage
04-21-24, 07:59 AM
Replies: 35
Views: 1,071
Posted By Kontact

You could have taken the shifter mount out of the...

You could have taken the shifter mount out of the handlebar to get the cable started. That completely exposes the housing end.
Forum: Bicycle Mechanics
04-21-24, 07:50 AM
Replies: 29
Views: 618
Posted By Kontact

Hopefully the OP will actually look for hex...

Hopefully the OP will actually look for hex engagement deeper in the bolt before trying this.
Forum: Bicycle Mechanics
04-21-24, 07:47 AM
Replies: 6
Views: 167
Posted By Kontact

As I recall, BB90 Treks are just a shell that...

As I recall, BB90 Treks are just a shell that accepts bearings, and that shell pinches in to stop the bearing from going too far into the frame. Kind of like the removable clips do for BB30. Neither...
Forum: Bicycle Mechanics
04-21-24, 12:52 AM
Replies: 6
Views: 167
Posted By Kontact

Why does your BB90 say "BB86"? Did you leave...

Why does your BB90 say "BB86"?

Did you leave the outside races in place?
Forum: Bicycle Mechanics
04-20-24, 10:03 PM
Replies: 11
Views: 315
Posted By Kontact

Yeah, really. You might not be able to do much...

Yeah, really. You might not be able to do much for yourself, but it is utterly unnecessary to keep bashing every home mechanic that even considers accomplishing something on their own.

This type...
Forum: Bicycle Mechanics
04-20-24, 09:54 PM
Replies: 27
Views: 728
Posted By Kontact

Why are most of your posts attacking new people...

Why are most of your posts attacking new people for working on their bikes?
Forum: Bicycle Mechanics
04-20-24, 09:39 PM
Replies: 45
Views: 952
Posted By Kontact

Are you proposing replacing all the components on...

Are you proposing replacing all the components on hisbike except for your brake calipers to accommodate a triple crank?
Forum: Bicycle Mechanics
04-20-24, 09:28 PM
Replies: 29
Views: 618
Posted By Kontact

I don't think the suggestion to create a larger...

I don't think the suggestion to create a larger allen hole with a dremel tool was serious.
Forum: Classic & Vintage
04-20-24, 07:13 PM
Replies: 35
Views: 1,071
Posted By Kontact

Perhaps the OP could make the shifter cables even...

Perhaps the OP could make the shifter cables even longer and zip tie them to the brake cables?
Forum: Bicycle Mechanics
04-20-24, 07:11 PM
Replies: 45
Views: 952
Posted By Kontact

What 8 speed derailleur EVER was limited to a 23t...

What 8 speed derailleur EVER was limited to a 23t low cogs?


siearly If your chainrings are in reasonable shape and you don't want to spend a lot of money, a cassette that goes to 28t might be...
Forum: Classic & Vintage
04-20-24, 06:51 PM
Replies: 12
Views: 425
Posted By Kontact

Wait til you find out the seller is your lost...

Wait til you find out the seller is your lost twin brother.
Forum: Bicycle Mechanics
04-20-24, 06:36 PM
Replies: 29
Views: 618
Posted By Kontact

It doesn't work like that. There is no magical...

It doesn't work like that. There is no magical shape you can put into a round, stripped hole that is going to create a shoulder to torque against.
Forum: Bicycle Mechanics
04-20-24, 06:22 PM
Replies: 29
Views: 618
Posted By Kontact

Sure. Which is why I suggested that the allen...

Sure. Which is why I suggested that the allen wrench might need to be inserted further, possibly using some force.
Forum: Bicycle Mechanics
04-20-24, 06:15 PM
Replies: 29
Views: 618
Posted By Kontact

What does that have to do with an allen bolt?

What does that have to do with an allen bolt?
Forum: Bicycle Mechanics
04-20-24, 06:10 PM
Replies: 29
Views: 618
Posted By Kontact

It is machined stripped?

It is machined stripped?
Forum: Bicycle Mechanics
04-20-24, 05:48 PM
Replies: 1
Views: 92
Posted By Kontact

Use a toothpick to get a drop in place.

Use a toothpick to get a drop in place.
Forum: Classic and Vintage Bicycles: Whats it Worth? Appraisals.
04-20-24, 05:12 PM
Replies: 16
Views: 403
Posted By Kontact

I would think any famous name frame with Delta...

I would think any famous name frame with Delta equipped C-Record in great condition would fetch at least $2000.
Forum: Bicycle Mechanics
04-20-24, 05:01 PM
Replies: 4
Views: 185
Posted By Kontact

I don't understand how parts are both too long...

I don't understand how parts are both too long and too short, but all QR skewers are not made with identical parts, so just switching them is like putting a Toyota piston in a Ford engine.

Just...
Forum: Bicycle Mechanics
04-20-24, 04:53 PM
Replies: 20
Views: 356
Posted By Kontact

Why can't you replace a bad link with a new quick...

Why can't you replace a bad link with a new quick link?

Yes, 10 speed parts are common.
Forum: Classic & Vintage
04-20-24, 04:50 PM
Replies: 25
Views: 697
Posted By Kontact

So were Suntour Power Ratchets, but they need...

So were Suntour Power Ratchets, but they need some friction to adjust the tension range. But, as I pointed out, if they were designed for no friction input from the mounting bolt, why can we all add...
Forum: Bicycle Mechanics
04-20-24, 04:26 PM
Replies: 25
Views: 593
Posted By Kontact

If I recall correctly, the Hylix takes the wrong...

If I recall correctly, the Hylix takes the wrong size crown race - 27.0. But isn't the Hylix a carbon steerer fork, only?

The OP does not want used stuff, but for those that do, and have smaller...
Forum: Classic & Vintage
04-20-24, 03:49 PM
Replies: 25
Views: 697
Posted By Kontact

That doesn't explain why everyone else has been...

That doesn't explain why everyone else has been able to adjust the friction level on the shifter via the mounting screws and pressure washers, which you say is impossible.
Forum: Bicycle Mechanics
04-20-24, 10:25 AM
Replies: 17
Views: 394
Posted By Kontact

Aside from the stated correct size post and...

Aside from the stated correct size post and carbon paste, sometimes posts marked a certain size are not quite the right dimension, causing slip. It is easy to try a different post.
Forum: Bicycle Mechanics
04-20-24, 10:22 AM
Replies: 29
Views: 618
Posted By Kontact

It looks like the outer 1/8" of hex has been...

It looks like the outer 1/8" of hex has been rounded off. Have you actually pushed (or hammered) an allen wrench at least 1/2" in to make sure there isn't still engagement? I'd try that first.

If...
Forum: Bicycle Mechanics
04-20-24, 10:11 AM
Replies: 11
Views: 315
Posted By Kontact

The problem is that every 10mm of stack you...

The problem is that every 10mm of stack you remove creates 10mm of extra length of hydraulic brake line. Sometimes a fat tubed carbon frame has plenty of room to take up the slack in the downtube,...
Forum: Bicycle Mechanics
04-20-24, 09:59 AM
Replies: 20
Views: 356
Posted By Kontact

Look for a bent tooth on the chainring, a stiff...

Look for a bent tooth on the chainring, a stiff link in the chain and any sort of bend in the front derailleur cage.
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