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Search: Posts Made By: jccaclimber
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11-13-22, 12:49 PM
Replies: 21
Views: 466
Posted By jccaclimber

This is exactly how our bike is set up, same...

This is exactly how our bike is set up, same shifter ever. I have found that the shifter can't hold as much tension in the brake cable as the stoker can put in to it though, so for maximum braking...
11-13-22, 12:37 PM
Replies: 7
Views: 452
Posted By jccaclimber

Itís been a bit since this was posted, so...

Itís been a bit since this was posted, so hopefully this ended well. A few thoughts:
1. When encountering a new problem of unknown progression, inspect. If it passes inspection, proceed. If no...
10-27-22, 07:24 PM
Replies: 31
Views: 1,004
Posted By jccaclimber

Several years ago I was discussing the heat...

Several years ago I was discussing the heat treating of aluminum with an extruder who was making a custom extrusion for me. One of their past products was the extrusion for a bicycle handlebar maker....
10-25-22, 11:43 PM
Replies: 18
Views: 403
Posted By jccaclimber

I'm well aware that bearings are one of the best...

I'm well aware that bearings are one of the best controlled COTS parts out there. Part of that is from not doing things that aren't needed. In the first post of yours that I quoted you said to use...
10-21-22, 11:07 PM
Replies: 18
Views: 403
Posted By jccaclimber

So you think a cost sensitive industry that makes...

So you think a cost sensitive industry that makes parts by the million is paying for an extra part that makes their product worse?

Some exceptions abound, generally around trying to make a ruined...
10-21-22, 10:49 PM
Replies: 10
Views: 2,572
Posted By jccaclimber

I was going to say to just find/make a Xtracycle...

I was going to say to just find/make a Xtracycle type device for a single, but then you mentioned wanting a stoker occasionally.
Is this as simple as removing the stoker pedals (assuming not a...
10-21-22, 10:46 PM
Replies: 5
Views: 590
Posted By jccaclimber

Not a proper field repair, but can you get a...

Not a proper field repair, but can you get a finger tip to it enough to get it spun most of the way in? I doubt it would stay that way long, but in other circumstances it might be better than...
10-16-22, 08:49 PM
Replies: 16
Views: 969
Posted By jccaclimber

The drivetrain arguments are slightly different,...

The drivetrain arguments are slightly different, but the same is true of recumbents on hills vs flats when compared to upright singles. In that case there is often a weight penalty, but the change...
10-13-22, 08:58 PM
Replies: 25
Views: 409
Posted By jccaclimber

Often carbon on aluminum, though I imagine it...

Often carbon on aluminum, though I imagine it would do fine carbon on steel.
That toothed washer is probably doing more with the paint than the actual fork crown metal anyways.
Sand is a perfectly...
10-13-22, 12:46 AM
Replies: 106
Views: 3,079
Posted By jccaclimber

Letís ignore for a moment marketing and economies...

Letís ignore for a moment marketing and economies of scale.
If you run your bicycle chain in a clean sealed environment, bathed in continuously filtered lubricant, and regularly heat it up enough to...
10-07-22, 06:13 PM
Replies: 15
Views: 4,716
Posted By jccaclimber

A US dime is around 1.35 mm thick. You should be...

A US dime is around 1.35 mm thick. You should be able to visually interpolate half the thickness of a dime (or stack one between the rim and orange soda can at one side and use a full dime), and...
09-28-22, 02:14 AM
Replies: 57
Views: 1,270
Posted By jccaclimber

While itís not common in most circles, it...

While itís not common in most circles, it depends. Until the tire is leaving tangent to the rim increased width means wider. After that it means narrower. Yes, with hooked rims the tire does stay on....
09-27-22, 08:56 AM
Replies: 151
Views: 10,582
Posted By jccaclimber

I wrote to Norton about this several years ago in...

I wrote to Norton about this several years ago in the process of putting together a shop safety document. Their response, in short, was that while you will clog the wheel and need to dress it, that...
09-27-22, 12:24 AM
Replies: 23
Views: 495
Posted By jccaclimber

Two reasons: 1. They are still quite common. ...

Two reasons:
1. They are still quite common.
2. If you donít have rim brakes, your required level of true (axial runout) is much less.

If youíre not running rim brakes then anything that doesnít...
09-25-22, 02:42 PM
Replies: 23
Views: 495
Posted By jccaclimber

It depends on how far ďout thereĒ is. If weíre...

It depends on how far ďout thereĒ is. If weíre talking my commute home from work Iím going to loosen the brakes to make the rim clear, ride slowly, and fix it at home.
If thatís not enough, or Iím...
09-25-22, 03:19 AM
Replies: 19
Views: 540
Posted By jccaclimber

Commute in the rain and itíll take half the time....

Commute in the rain and itíll take half the time.
I wouldnít recommend any corrosive, youíre likely to end up with pitting, which may be the least of your issues at that point.
09-24-22, 02:26 AM
Replies: 20
Views: 367
Posted By jccaclimber

If the amount itís off by is as small as I...

If the amount itís off by is as small as I suspect you could probably shim under the drive side locknut as well.
Shim stock, tin snips, a nibbler, and for thinner things a throwaway pair of scissors...
09-23-22, 01:53 AM
Replies: 56
Views: 3,087
Posted By jccaclimber

What specifically was the manufacturerís reply? ...

What specifically was the manufacturerís reply? They do still sell these, or at least claim to, so manuals should be available.

50% off sounds like a high asking price for a machine that doesnít...
09-20-22, 11:05 PM
Replies: 22
Views: 759
Posted By jccaclimber

It doesn't work so well with the nearest shop...

It doesn't work so well with the nearest shop being 40 miles away, but I used to run a small business as a side gig in an unrelated hobby. It was heavily service based, and additionally I kept the...
09-18-22, 02:04 AM
Replies: 56
Views: 3,087
Posted By jccaclimber

Reaching out to the manufacturer is your best...

Reaching out to the manufacturer is your best bet. After that Iíd start digging around through the menus and see if thereís a way to home or rezero the device sensors. If you havenít tried it, I...
09-16-22, 11:19 PM
Replies: 57
Views: 1,270
Posted By jccaclimber

If thereís a bicycle co-op near you they might be...

If thereís a bicycle co-op near you they might be happy for the hub and rim.
09-12-22, 11:56 PM
Replies: 27
Views: 736
Posted By jccaclimber

That wonít be too bad. Stop a bit shy of the...

That wonít be too bad. Stop a bit shy of the spindle and use something to split the very last part.
09-12-22, 03:03 PM
Replies: 63
Views: 10,533
Posted By jccaclimber

Letís say for a moment that the counterfeit costs...

Letís say for a moment that the counterfeit costs as much to make as the name brand product (Iím guessing it does not).
You get the same sale price, so right off you get the same margins as the OEM....
09-12-22, 02:28 AM
Replies: 27
Views: 736
Posted By jccaclimber

1. A split plate type puller, assuming you can...

1. A split plate type puller, assuming you can fit it in.
2. Iím assuming you want a non destructive method, but cutting a split in the crank arm will get it off.
3. Supporting the bike with the BB...
09-11-22, 08:06 PM
Replies: 17
Views: 336
Posted By jccaclimber

We're saying the same thing about the gearing...

We're saying the same thing about the gearing restrictions change next year, but you can keep being all argumentative about it if you want. Whatever the OP chooses to do, it only needs to last...
09-11-22, 03:21 PM
Replies: 17
Views: 336
Posted By jccaclimber

Then change the crank for a year as was also...

Then change the crank for a year as was also suggested above, or is it a proprietary BB interface to the frame too?

Re:rules change, ďchangingĒ, implying in the future, not ďchangedĒ, implying...
09-11-22, 02:45 PM
Replies: 17
Views: 336
Posted By jccaclimber

The first hit I found on Google searching for...

The first hit I found on Google searching for this was a post about that rule changing, so it might be worth doing some research there.
Changing out or removing the large front ring seems the...
09-09-22, 02:20 AM
Replies: 7
Views: 298
Posted By jccaclimber

Most of my stuck expanding bar end plug...

Most of my stuck expanding bar end plug experiences have been on 1970ís bikes with original expanding plugs still in them. On those unthreading nearly all the way is the first start. Then you have...
09-07-22, 05:00 PM
Replies: 42
Views: 1,872
Posted By jccaclimber

Some light reading: ...

Some light reading:
https://www.sheldonbrown.com/cribsheet-handlebars.html
09-06-22, 11:22 PM
Replies: 11
Views: 1,023
Posted By jccaclimber

In the world of machining, the hole doesn't need...

In the world of machining, the hole doesn't need to be terribly accurate. I had good luck welding on a stock washer. I did machine off some material first, but a motivated individual with a file...
09-05-22, 04:37 PM
Replies: 13
Views: 384
Posted By jccaclimber

Understanding wheel spoke failures may help here....

Understanding wheel spoke failures may help here. If you break one spoke, maybe two, due to a specific event like a crash, itís easy enough to replace them if the rim isnít damaged. Itís not common...
09-05-22, 02:06 PM
Replies: 63
Views: 10,533
Posted By jccaclimber

You see this with the calibration certificates on...

You see this with the calibration certificates on the boatloads of fake Mitutoyo calipers in the world. In that case the serial number on the calipers often doesnít match the one on the certificate...
09-05-22, 01:51 PM
Replies: 11
Views: 452
Posted By jccaclimber

At least you arenít ruining a Park PZT-2 to open...

At least you arenít ruining a Park PZT-2 to open your grease tube.
09-05-22, 01:07 AM
Replies: 18
Views: 605
Posted By jccaclimber

I wonder if the seam is cleaned up flash from...

I wonder if the seam is cleaned up flash from mold half parting lines.
09-03-22, 06:46 PM
Replies: 33
Views: 631
Posted By jccaclimber

What I was trying to get at with the ďDoing...

What I was trying to get at with the ďDoing something wrongĒ is that the removal method may not involve turning the hex you see. Even if they didnít have enough air (and from your description maybe...
09-03-22, 06:39 PM
Replies: 8
Views: 264
Posted By jccaclimber

First guess is the wrong tool or a worn tool that...

First guess is the wrong tool or a worn tool that is slipping in the freewheel. There are a lot of freewheel tools, some of which are very similar to, but not compatible with, lock ring tools or...
09-03-22, 04:12 PM
Replies: 33
Views: 631
Posted By jccaclimber

This is the point at which you should assume you...

This is the point at which you should assume you arenít doing something correctly. Itís also the point at which I point out that airline restrictions mean the tire shop guys probably arenít getting...
09-03-22, 01:22 PM
Replies: 9
Views: 308
Posted By jccaclimber

This is a case where the only downside of the...

This is a case where the only downside of the disease is the presenting symptoms. If it shifts well then you are not at risk of having that condition cause harm to the rest of the system. If you...
09-03-22, 01:17 PM
Replies: 10
Views: 200
Posted By jccaclimber

It might require a change in chain length, but...

It might require a change in chain length, but would letting the axle sit toward the back of the dropouts buy you more clearance?
09-03-22, 01:05 PM
Replies: 9
Views: 351
Posted By jccaclimber

If itís a half inch from one spoke to the next...

If itís a half inch from one spoke to the next that is a much different thing than a half inch across a quarter of the wheel rotation.

The times Iíve had to save a wheel that far out I dropped...
09-03-22, 12:58 PM
Replies: 18
Views: 605
Posted By jccaclimber

If that QR code is a serial number the claimed...

If that QR code is a serial number the claimed OEM might be able to help you track it through shipment/determine validity.
09-03-22, 01:25 AM
Replies: 42
Views: 1,872
Posted By jccaclimber

While calipers are incredibly handy, and while...

While calipers are incredibly handy, and while cheap junky calipers are astoundingly good (this coming from someone who has more in his metrology gear than you do in your bike), you can tell those...
09-01-22, 08:01 PM
Replies: 42
Views: 1,872
Posted By jccaclimber

Sometimes the right twisting around and some very...

Sometimes the right twisting around and some very ginger spreading with a screwdriver does the trick. The rest of the time it just scratches up the bars and still doesnít go in. No specific...
08-31-22, 11:23 PM
Replies: 24
Views: 1,071
Posted By jccaclimber

A file works assuming it isn't too far. You can...

A file works assuming it isn't too far. You can get an idea of how far you need to go by centering the wheel and seeing how far it is from touching the other fork end.
You don't need to try...
08-31-22, 08:10 PM
Replies: 50
Views: 1,193
Posted By jccaclimber

It is particularly disappointing that you canít...

It is particularly disappointing that you canít buy a replacement frame, especially for something still in production! I wonder if they are short on frames and would rather enjoy the margin of a...
08-31-22, 05:20 PM
Replies: 9
Views: 272
Posted By jccaclimber

A side effect of asking an uncommon question is...

A side effect of asking an uncommon question is that part of the collective user base will err on the side of caution and come up with potential issues.

Putting this a different way, is swapping...
08-30-22, 11:35 PM
Replies: 13
Views: 251
Posted By jccaclimber

Correct. Assuming an otherwise well maintained...

Correct. Assuming an otherwise well maintained system, if a gear is skipping under load that gear and/or chain is due for replacement. Since youíve tried it with a new chain the issue is probably...
08-30-22, 02:11 AM
Replies: 13
Views: 251
Posted By jccaclimber

Total riding miles isnít a great way to measure...

Total riding miles isnít a great way to measure individual sprocket lifespan given all the variables in use.
Assuming the correct length chain and proper derailer adjustment, if you are skipping...
08-30-22, 01:56 AM
Replies: 19
Views: 471
Posted By jccaclimber

One thing to add on BBs, and really bicycle...

One thing to add on BBs, and really bicycle bearings in general. Their definition of sealed isnít quite as robust as mine, but for dust, dirt, grease, and an occasional sprinkle (not spray) with the...
08-29-22, 10:30 AM
Replies: 32
Views: 8,345
Posted By jccaclimber

So, to summarize that, you still have to flip the...

So, to summarize that, you still have to flip the wheel? It sounds like the math youíre doing is pretty similar to flipping a wheel with an indicator, and the wheel ends up flipped in the end...
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