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Search: Posts Made By: jccaclimber
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09-09-21, 01:26 AM
Replies: 39
Views: 644
Posted By jccaclimber

For the record, the threads on a screw do add...

For the record, the threads on a screw do add strength. This is why for calculations the stressed diameter is larger than the minor diameter. That said, youíll probably be fine, itís a small...
09-04-21, 02:08 AM
Replies: 8
Views: 583
Posted By jccaclimber

The rear hub is likely threaded for an Arai drum...

The rear hub is likely threaded for an Arai drum so yes, intended for tandems. They have not been made new in quite a while, but are still available used and they donít tend to wear out. I have one...
09-03-21, 12:42 AM
Replies: 8
Views: 583
Posted By jccaclimber

https://www.bikeforums.net/tandem-cycling/1236421-...

https://www.bikeforums.net/tandem-cycling/1236421-tandem-work-stand.html

After you ride it around solo for a bit (they handle like a bus the first time or two) get someone nearby to ride it with...
09-01-21, 11:49 PM
Replies: 29
Views: 1,763
Posted By jccaclimber

My list from (single) road bikes tends to be: ...

My list from (single) road bikes tends to be:
Ancient and/or cheap:
French thread bottom brackets
Mixte frames
Cottered cranks
Lack of a derailer hanger
Chromed steel rims
Any frame with a...
08-29-21, 02:39 AM
Replies: 14
Views: 493
Posted By jccaclimber

Honestly a frame upside down is nicer than a...

Honestly a frame upside down is nicer than a crummy truing stand.
The point of a tool is to improve things. A cheap truing stand does not do that, and a frame works better than one might think.
08-25-21, 01:54 AM
Replies: 35
Views: 1,496
Posted By jccaclimber

^ I wouldnít guarantee that. Auto mechanics...

^
I wouldnít guarantee that. Auto mechanics often get awful pay, especially considering that they typically have to provide their own rather expensive tools.
Machinists in many places ( actually it...
08-24-21, 12:15 PM
Replies: 35
Views: 1,496
Posted By jccaclimber

Normally Glassdoor under lists compensation for...

Normally Glassdoor under lists compensation for Bay Area positions, but I think this might be one case where selection bias is making it over-report.
I don't want to discourage anyone from following...
08-21-21, 10:40 PM
Replies: 35
Views: 1,496
Posted By jccaclimber

Just backing this out, $400 at 2 hours of actual...

Just backing this out, $400 at 2 hours of actual fitting, 20 minutes of answering questions to random people for every actual fit, two 20 minute follow up conversations per fit. Aim really high and...
08-15-21, 07:23 PM
Replies: 14
Views: 932
Posted By jccaclimber

TLDR: For infrequent home use, the cheap ones...

TLDR: For infrequent home use, the cheap ones will be fine. Drive size doesn't really matter, although it's nice if it matches up with your tools. Remember, you'll need either a set of metric Allen...
08-12-21, 09:34 PM
Replies: 9
Views: 759
Posted By jccaclimber

One additional thought, I have a Mixte 1976...

One additional thought, I have a Mixte 1976 LeJeune that doesn't need to go home, but it can't stay here. You're not far from me, so I'll send you a PM.
08-12-21, 09:26 PM
Replies: 9
Views: 759
Posted By jccaclimber

This link may help answer that as well. ...

This link may help answer that as well.
https://velo-orange.blogspot.com/2017/09/canti-post-sizing-psa.html
The TLDR is that current cantilever post spacing is in the 77 to 85 mm range, but some...
08-10-21, 01:48 AM
Replies: 6
Views: 564
Posted By jccaclimber

I see three options. The first is to learn to...

I see three options.
The first is to learn to shift really well on an uphill. In short you have to stop applying load, but keep the pedals turning, as the chain transitions. I describe it as...
07-22-21, 06:55 AM
Replies: 11
Views: 428
Posted By jccaclimber

If this were me and I was using SolidWorks I...

If this were me and I was using SolidWorks I would take a very square photo, insert it as a sketch aid, zoom in, and draw a spline to fit.

Is it a NACA profile by chance?

For a one off,...
07-16-21, 01:25 AM
Replies: 27
Views: 2,578
Posted By jccaclimber

Congratulations on a solid analysis. You're...

Congratulations on a solid analysis. You're ahead of many of the manufacturing engineers I've worked with over the years, who I've had to remind to put an indicator on and measure things. The...
07-10-21, 04:03 AM
Replies: 30
Views: 1,129
Posted By jccaclimber

1. Clean out the seat tube as best as possible...

1. Clean out the seat tube as best as possible first.
2. Find an adhesive that can be easily softened with heat, a chemical, etc. Make a tube that just fits inside the stuck seat post and glue it...
07-06-21, 01:16 AM
Replies: 15
Views: 629
Posted By jccaclimber

This seems like a fairly high risk low reward...

This seems like a fairly high risk low reward sort of project, but I guess it's better than 3d printing a disc brake rotor.
If you wanted to 3d print a seat integrated into a seat tube I'd call that...
07-02-21, 02:04 PM
Replies: 7
Views: 529
Posted By jccaclimber

The stand works well enough, but the OPís...

The stand works well enough, but the OPís solution also looks perfectly serviceable, and probably used parts on hand.
07-01-21, 04:07 PM
Replies: 23
Views: 751
Posted By jccaclimber

Proper use of the correct tool and not using ball...

Proper use of the correct tool and not using ball end tools on overly tight fasteners will fix 95% of stripped fastener issues.
I deal with a lot of bikes on poor condition at a local co-op. ...
06-29-21, 12:37 AM
Replies: 14
Views: 757
Posted By jccaclimber

As above, plastic sleeve on a steel shaft,...

As above, plastic sleeve on a steel shaft, typically some grease in between.
I was recently surprised to discover just that on the off brand SPD pedals on one of my wife's bike-. I suspect they...
06-28-21, 12:58 AM
Replies: 28
Views: 1,389
Posted By jccaclimber

Always good to get miles on a bike. Most...

Always good to get miles on a bike.
Most shifter housing made in the last decade or two is a plastic sleeve on the inside, a series of metal strands in the middle, and a plastic shell on the...
06-27-21, 06:52 PM
Replies: 29
Views: 9,381
Posted By jccaclimber

Seeing as we're all having productive fun with a...

Seeing as we're all having productive fun with a zombie thread I'll chime in:
1. If I had proof (eg, e-mail receipt) of purchase I'd certainly expect the manufacturer to he more helpful. I do...
06-27-21, 06:12 PM
Replies: 28
Views: 1,389
Posted By jccaclimber

1. In the post #7 picture #6 the front shift...

1. In the post #7 picture #6 the front shift housing is wrapped around the rear shift and rear brake housing. Those shouldn't cross, and if they do they should be loose through the full rotation of...
06-20-21, 08:40 PM
Replies: 3
Views: 681
Posted By jccaclimber

Thermal images of an Aria drum brake

All these threads about brake temperatures got me curious and I decided to drag along the thermal camera on our ride today. This isn't terribly scientific, but does reinforce the "Yes, there's a lot...
06-09-21, 11:46 AM
Replies: 18
Views: 864
Posted By jccaclimber

Unlikely, but just to be sure, is the chain too...

Unlikely, but just to be sure, is the chain too worn to pass the tool rather than not worn enough? I have a Park CC3.2 (and a ruler). Every now and then I run into a chain so worn that the tip on...
06-08-21, 02:35 AM
Replies: 14
Views: 727
Posted By jccaclimber

Is there a hole out the bottom of the fork crown...

Is there a hole out the bottom of the fork crown or is it solid? I havenít seen all that many stuck quill stems, but dropping a rod in and hammering on the wedge eventually breaks the stem out. Best...
06-06-21, 04:11 PM
Replies: 20
Views: 1,029
Posted By jccaclimber

I've resolved that issue in at least one 9sp STI...

I've resolved that issue in at least one 9sp STI lever of that vintage, but it's been nearly 15 years since I did so. You really do need to tear it down if flushing doesn't work. Be careful with...
06-04-21, 12:24 PM
Replies: 51
Views: 2,758
Posted By jccaclimber

Make sure the housing end is not stuck to the...

Make sure the housing end is not stuck to the barrel adjuster and rotating with it.
06-02-21, 02:41 AM
Replies: 51
Views: 2,758
Posted By jccaclimber

Adding to houses and cars, old industrial machine...

Adding to houses and cars, old industrial machine tools, particularly those with any electronics in them are worse. Even more fun is that the simple act of moving them from one place to another often...
05-31-21, 05:05 PM
Replies: 17
Views: 1,435
Posted By jccaclimber

I may be erring a bit too far on the "close...

I may be erring a bit too far on the "close enough" side having been aiming for no-cost fixes at the local bike co-op lately, but I'd ride it and see if it happens again. While that particular...
05-26-21, 01:36 PM
Replies: 32
Views: 1,772
Posted By jccaclimber

Parents just donít raise kids like they used to. ...

Parents just donít raise kids like they used to.
Iím curious, if it wasnít leaking, how did she decide where on the tube to put the patch?
05-01-21, 08:47 PM
Replies: 5
Views: 802
Posted By jccaclimber

Seeing as how the backing plate from my other...

Seeing as how the backing plate from my other brake lined up with the axle slot when the mystery spacer was removed I opted to leave it out. The only thing that needed to be done was turn the large...
12-23-20, 02:47 AM
Replies: 25
Views: 117,317
Posted By jccaclimber

I miss 2009 too guys, but maybe start a new...

I miss 2009 too guys, but maybe start a new thread instead of nitpicking something we already know in this one.
Edit to clarify for the poster below me, plural was intended, there are multiple...
10-26-09, 11:28 AM
Replies: 25
Views: 117,317
Posted By jccaclimber

Sort of summing up everything in this thread that...

Sort of summing up everything in this thread that I can back up with personal experience. 700c (622) is usually the same as 28", and is the same as 29". The interesting thing about this is that...
05-17-09, 05:09 PM
Replies: 26
Views: 3,021
Posted By jccaclimber

Most of the 7sp wheels I have seen are not the...

Most of the 7sp wheels I have seen are not the current 130mm standard, or the axle has spacers to bring it up to that size. As a result the 7sp wheels in fact have the same dish as an 8+sp wheel. ...
Showing results 1 to 34 of 34


 
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