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Search: Posts Made By: JohnDThompson
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10-04-22, 10:10 AM
Replies: 32
Views: 1,960
Posted By JohnDThompson

You can distinguish Italian from French thread by...

You can distinguish Italian from French thread by measuring the inside diameter of the shell threads (or the outside diameter of the threaded portion of the cup): Italian will be 36mm, French will be...
10-04-22, 10:04 AM
Replies: 4
Views: 143
Posted By JohnDThompson

SunTour "Superbe" on one, CLB "Guidonnet" on the...

SunTour "Superbe" on one, CLB "Guidonnet" on the other.
10-04-22, 09:33 AM
Replies: 11
Views: 373
Posted By JohnDThompson

Seattle has very good bicycle infrastructure. My...

Seattle has very good bicycle infrastructure. My son just bought a house in Seattle, with a garage but no car or intention to get a car, so once they settle in, there'll be room for me to stash a...
10-04-22, 09:24 AM
Replies: 29
Views: 447
Posted By JohnDThompson

I defer to your experience with freewheel...

I defer to your experience with freewheel minutia. The oil port is not strictly necessary to flush out the interior. Alternatvely, you can squirt e.g. WD-40 into the gap between inner and outer...
10-03-22, 12:13 PM
Replies: 29
Views: 447
Posted By JohnDThompson

I don't think that Shimano makes a 5-speed...

I don't think that Shimano makes a 5-speed freewheel anymore. They still offer 6-speed freewheels, and all their modern production uses Hyperglide profiling.

Otherwise, SunRace makes a 5-speed...
10-03-22, 12:08 PM
Replies: 29
Views: 447
Posted By JohnDThompson

The pictured freewheel is an older version and...

The pictured freewheel is an older version and uses a different removal tool than the one you used for your freewheel.

The individual sprockets listed on that page are for Uniglide cassettes, and...
10-03-22, 11:56 AM
Replies: 29
Views: 447
Posted By JohnDThompson

I agree with repechage; the truncated teeth are...

I agree with repechage; the truncated teeth are intentional, to improve shifting. IMO, those Shimano 600 and Dura-Ace "Uniglide" freewheels are among the best ever brought to market, much better...
10-03-22, 11:24 AM
Replies: 12
Views: 192
Posted By JohnDThompson

Same here.

Same here.
10-03-22, 11:13 AM
Replies: 32
Views: 1,960
Posted By JohnDThompson

The only compelling reasons to remove the fixed...

The only compelling reasons to remove the fixed cup are to replace it if it is damaged, or if you're repainting the frame. If you've already decided to leave the headset cup in place, why not the...
10-02-22, 09:25 AM
Replies: 32
Views: 1,960
Posted By JohnDThompson

Bottom bracket cups are hardened steel; hardware...

Bottom bracket cups are hardened steel; hardware store washers generally are not hardened. The risk of cup damage is minimal.
10-02-22, 09:05 AM
Replies: 7
Views: 273
Posted By JohnDThompson

I made my own out of a seat post clamp and...

I made my own out of a seat post clamp and derailleur pulley, fished out of the scrap bucket:
09-30-22, 07:27 AM
Replies: 44
Views: 891
Posted By JohnDThompson

FWIW, myocarditis is also associated with...

FWIW, myocarditis is also associated with post-infection COVID-19:



https://www.nejm.org/doi/full/10.1056/NEJMoa2110475

Vaccination will reduce your risk of infection, and in the event of...
09-29-22, 08:00 AM
Replies: 32
Views: 1,960
Posted By JohnDThompson

Are there any markings on the cups? Sometimes...

Are there any markings on the cups? Sometimes thread spec is explicitly marked, other times in an arcane manner.
09-29-22, 07:29 AM
Replies: 6
Views: 290
Posted By JohnDThompson

The bearings can be replaced. You can either do...

The bearings can be replaced. You can either do it yourself by pushing them out of the cartridge shell and replacing them with fresh bearings from an industrial bearing supplier, or have Phil do it...
09-27-22, 05:21 PM
Replies: 11
Views: 290
Posted By JohnDThompson

"Cardiac arrhythmia" is a generic term that...

"Cardiac arrhythmia" is a generic term that covers a pretty wide range of conditions. It could be supraventricular tachycardia, paroxysmal atrial tachycardia, atrial fibrillation, atrial flutter, etc.
09-27-22, 04:24 PM
Replies: 24
Views: 544
Posted By JohnDThompson

BC 1.37 on the cup indicates English thread, so...

BC 1.37 on the cup indicates English thread, so clockwise to loosen. If you can't get it loose even after blocking your 36mm tool against the cup, try the Sheldon Brown method...
09-27-22, 03:49 PM
Replies: 23
Views: 446
Posted By JohnDThompson

Unless you're rebuilding the whole wheel, you...

Unless you're rebuilding the whole wheel, you shouldn't need to mess with the dishing. Use the brake pads as indicators to show which spokes you need to adjust. Get it so the rim passes between the...
09-27-22, 03:45 PM
Replies: 8
Views: 188
Posted By JohnDThompson

I just cut the Schrader chuck off and put a Silca...

I just cut the Schrader chuck off and put a Silca presta chuck on instead:
09-27-22, 03:34 PM
Replies: 57
Views: 990
Posted By JohnDThompson

The original Paramounts were made in Chicago,...

The original Paramounts were made in Chicago, first by Emil Wastyn and later in a special section of Schwinn's Chicago factory. By the mid 80s, Paramount production was moved to a new facility in...
09-26-22, 03:17 PM
Replies: 28
Views: 606
Posted By JohnDThompson

I measure 75mm between the pulley axles and 30mm...

I measure 75mm between the pulley axles and 30mm offset of the upper pulley from the lower pivot bolt.
09-26-22, 03:06 PM
Replies: 5
Views: 138
Posted By JohnDThompson

Hard to say. Chain length is a function of...

Hard to say. Chain length is a function of gearing, derailleur capacity, and chainstay length. If your derailleur can wrap the current length with a smaller inner ring, no worries (check on...
09-26-22, 02:56 PM
Replies: 5,240
Views: 556,718
Posted By JohnDThompson

Is this the derailleur you have? ...

Is this the derailleur you have?

https://velobase.com/CompImages/FDerailleur/BD6D46E9-EAC5-487E-9736-287817BA311E.jpeg...
09-26-22, 06:47 AM
Replies: 151
Views: 10,358
Posted By JohnDThompson

Not with an aluminum rim. Aluminum doesn't spark,...

Not with an aluminum rim. Aluminum doesn't spark, and it will clog your grinding wheel, increasing risk of thermal cracking and shrapnel later on.
09-26-22, 06:41 AM
Replies: 16
Views: 430
Posted By JohnDThompson

This is what to look for:

This is what to look for:
Forum: Road Cycling
09-25-22, 06:03 PM
Replies: 52
Views: 1,211
Posted By JohnDThompson

Reminds me of this:

Reminds me of this:
09-25-22, 05:55 PM
Replies: 44
Views: 891
Posted By JohnDThompson

I got my bivalent booster (Pfizer) last Monday....

I got my bivalent booster (Pfizer) last Monday. No side effects at all. The injection site was sore for a couple hours, but after that, nothing.
09-25-22, 05:35 PM
Replies: 28
Views: 606
Posted By JohnDThompson

The nice thing about the proposed Shimano cage...

The nice thing about the proposed Shimano cage swap is that it does not involve modifying the original Record derailleur, just some slight modifications to the Shimano cage. Keep the original Record...
09-25-22, 05:32 PM
Replies: 28
Views: 606
Posted By JohnDThompson

FWIW, the Shimano Titlist GS is identical to the...

FWIW, the Shimano Titlist GS is identical to the Crane GS, except with a steel pulley cage instead of aluminum. And the Schwinn GT300 LeTour was a re-badged Crane GS. So a cage from either of those...
09-25-22, 05:09 PM
Replies: 32
Views: 803
Posted By JohnDThompson

I strap one to the back of my helmet. That puts...

I strap one to the back of my helmet. That puts it up high enough to be easily visible. I had one person ask if it was a camera. It's not, but if thinking it might be a camera makes people behave...
Forum: Framebuilders
09-24-22, 09:42 AM
Replies: 4
Views: 213
Posted By JohnDThompson

Gipiemme:

Gipiemme:
09-24-22, 07:17 AM
Replies: 15
Views: 521
Posted By JohnDThompson

Those look like Stronglight A9 headset parts....

Those look like Stronglight A9 headset parts. IMO, that's one of the best headsets ever put on the market, but it's been out of production for many years now. You may be able to find a used one to...
09-23-22, 10:58 AM
Replies: 19
Views: 502
Posted By JohnDThompson

I've used Modolo "Sinterized" brake pads for...

I've used Modolo "Sinterized" brake pads for this. Run them for a few weeks, and the anodizing is gone from the brake track. Leave them on longer, and you'll wear out your rim. Not sure if they were...
09-23-22, 10:14 AM
Replies: 23
Views: 471
Posted By JohnDThompson

My experience is that you get what you pay for...

My experience is that you get what you pay for with bike shorts. Cheap shorts last a season or two, pricier ones can last for many years.
09-23-22, 10:07 AM
Replies: 16
Views: 405
Posted By JohnDThompson

Also the "Speedier Tire Lever" from Crank...

Also the "Speedier Tire Lever" from Crank Brothers, although I haven't yet tried it:

https://cdn.shopify.com/s/files/1/2256/0503/products/speedier-lever-1_1800x1800.png...
09-22-22, 07:43 AM
Replies: 145
Views: 22,550
Posted By JohnDThompson

Red Clover Triplizer ring: ...

Red Clover Triplizer ring:

https://www.redclovercomponents.com/uploads/2/3/1/4/23146292/s387390523383710784_p1_i1_w1066.jpeg...
09-22-22, 07:11 AM
Replies: 16
Views: 405
Posted By JohnDThompson

Get a VAR bead jack to carry on rides. It's more...

Get a VAR bead jack to carry on rides. It's more portable than the Kool Stop and includes tire levers for removing the tire from the rim.
09-20-22, 08:58 PM
Replies: 7
Views: 239
Posted By JohnDThompson

What pedals are you replacing? I'd look at...

What pedals are you replacing?

I'd look at the MKS "Urban Platform" pedal. It's derived from the venerable Lyotard mod. 23 pedal, and has a wide tab for easy entry into the clip. My only objection...
09-20-22, 09:14 AM
Replies: 33
Views: 599
Posted By JohnDThompson

Stein has changed their fixed cup clamp to...

Stein has changed their fixed cup clamp to accommodate both bolt-type and nu-type BB spindles:
https://steintool.com/portfolio-items/fixed-cup-wrench-clamp/
Forum: Road Cycling
09-20-22, 08:48 AM
Replies: 14
Views: 365
Posted By JohnDThompson

Does this mean that the upper pivot spring is not...

Does this mean that the upper pivot spring is not consistently pulling the derailleur body back? This can be caused by a broken or disengaged upper pivot spring, but I would expect the problem to...
09-20-22, 08:31 AM
Replies: 7
Views: 265
Posted By JohnDThompson

The Renault-sponsored team rode Gitane bikes: ...

The Renault-sponsored team rode Gitane bikes:
https://2.bp.blogspot.com/-CHBDamPuK8w/Vm_mHOfZMdI/AAAAAAAAGto/BGYHjToPz2k/s1600/Pascal_POISSON___Renault_Gitane_1981__.jpg



It looks like a...
09-20-22, 08:21 AM
Replies: 6
Views: 252
Posted By JohnDThompson

The homemade Sheldon Brown tool...

The homemade Sheldon Brown tool (https://sheldonbrown.com/tooltips/bbcups.html) should be able to remove the cup.
https://cdn-0.sheldonbrown.com/tooltips/images/bbtool-bolt.jpg

But unless you are...
09-19-22, 08:38 PM
Replies: 16
Views: 622
Posted By JohnDThompson

If not too close to the chainstay, file a "V"...

If not too close to the chainstay, file a "V" into the crack to clean out any corrosion, then TIG across the crack and file to suite, cosmetically.
09-18-22, 07:15 AM
Replies: 32
Views: 814
Posted By JohnDThompson

Most Look-type pedals have a rounded bottom side...

Most Look-type pedals have a rounded bottom side that is not conducive to unclipped pedaling. Some off-road models have a bottom side designed for unclipped pedaling, like these Look-made Campagnolo...
09-18-22, 07:08 AM
Replies: 40
Views: 1,000
Posted By JohnDThompson

Yes, shorter crank arms reduce range of motion at...

Yes, shorter crank arms reduce range of motion at the knee. I put 155mm arms on my wife's bike when she started having knee problems.
09-18-22, 06:57 AM
Replies: 33
Views: 599
Posted By JohnDThompson

Flats and no pin tool holes on the non-drive side...

Flats and no pin tool holes on the non-drive side suggests that the fixed cup was installed on the wrong side, which, in turn, suggests either French or Italian thread. What does the drive-side cup...
09-18-22, 06:10 AM
Replies: 12
Views: 362
Posted By JohnDThompson

https://i.ebayimg.com/images/g/fo4AAOSwoWdf-Dnv/s-...

https://i.ebayimg.com/images/g/fo4AAOSwoWdf-Dnv/s-l1600.jpg

I don't know which would be harder to source, the oversize AX pedals or the adapters that allow a normal pedal to be used with those...
09-18-22, 06:03 AM
Replies: 18
Views: 348
Posted By JohnDThompson

The longer cable run to the front derailleur...

The longer cable run to the front derailleur (assuming it is mounted on the stoker seat tube) has more friction and stretch than on a single. The reverse-pull of the SL derailleur should help with...
09-18-22, 05:39 AM
Replies: 37
Views: 1,019
Posted By JohnDThompson

Older French bikes may have metric pedal thread,...

Older French bikes may have metric pedal thread, but starting around 1980, English/ISO thread was used. Often, pedal thread spec is marked on the crank arm. If you can't find metric thread pedals,...
09-16-22, 06:10 AM
Replies: 27
Views: 674
Posted By JohnDThompson

And put a dustcap on the crank, so the loose bolt...

And put a dustcap on the crank, so the loose bolt doesn't fall out and get lost.
09-15-22, 08:35 AM
Replies: 50
Views: 1,239
Posted By JohnDThompson

FWIW, Campagnolo offered high flange hubs as an...

FWIW, Campagnolo offered high flange hubs as an option with their Triomphe, Victory, and C-Record groups in the mid to late 80s.
Showing results 1 to 50 of 1000
 


 
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