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Search: Posts Made By: JohnDThompson
Showing results 1 to 50 of 1000
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07-25-21, 07:04 AM
Replies: 9
Views: 198
Posted By JohnDThompson

Fred Delong popularized the "half-step plus...

Fred Delong popularized the "half-step plus granny" configuration. Select the outer two chainrings and freewheel sprockets to provide even, half-step gearing, and mount the smallest ring your crank...
07-25-21, 06:47 AM
Replies: 8
Views: 234
Posted By JohnDThompson

Well, that's why SKS supplies those little vinyl...

Well, that's why SKS supplies those little vinyl caps to place over the ends of the struts. But if you have a Dremel, it's certainly a better option.
07-25-21, 06:42 AM
Replies: 9
Views: 300
Posted By JohnDThompson

That reminds me of the dropout modification used...

That reminds me of the dropout modification used for weight-weenie Hi-E hubs, but that bike would be incongruous for that type of "upgrade."

CliffordK may be onto something with his suggestion...
07-24-21, 08:08 AM
Replies: 7
Views: 182
Posted By JohnDThompson

And Victory came with a woven nylon strap, not...

And Victory came with a woven nylon strap, not the leather strap shown above.
07-24-21, 06:24 AM
Replies: 16
Views: 1,498
Posted By JohnDThompson

Well, it's not "continually impacted." Once the...

Well, it's not "continually impacted." Once the hub axle abuts the bolt end, it is secured in place by the quick release. If the QR is loose enough to allow continual impacts, the wheel would not be...
07-21-21, 08:17 PM
Replies: 4
Views: 205
Posted By JohnDThompson

Yes. Between Record ("thin") and Nuovo Record...

Yes. Between Record ("thin") and Nuovo Record ("thick") cups, titanium Super Record, and CPSC mandated changes, Campagnolo bottom brackets of that era are a hot mess. Campagnolo USA published an...
07-21-21, 08:10 PM
Replies: 33
Views: 773
Posted By JohnDThompson

The Campagnolo binder bolts have a reputation for...

The Campagnolo binder bolts have a reputation for breaking. I've broken two already. As others have noted, Campagnolo isn't the only game in town. Zeus binder bolts were the go-to alternative BITD,...
07-21-21, 07:49 PM
Replies: 61
Views: 2,408
Posted By JohnDThompson

At Trek in the mid 80s, we used torch-free...

At Trek in the mid 80s, we used torch-free electromagnetic induction to heat the joints, and automated wire feeds to feed brass into the hot joints in combination with pre-placed brass "bombs" inside...
07-21-21, 06:10 AM
Replies: 9
Views: 190
Posted By JohnDThompson

Campagnolo cups are marked with thread spec:...

Campagnolo cups are marked with thread spec: Italian is 36 x 24; English is 1.370 x 24

Yours appear to be Italian, 36 x 24:
07-20-21, 02:41 PM
Replies: 9
Views: 244
Posted By JohnDThompson

The more spokes, the better. At 250#, I'd...

The more spokes, the better. At 250#, I'd consider 32 to be the bare minimum. There's nothing wrong with 36 spoke wheels; I use them, and I weight 100# less than you. And hand-built and tensioned...
07-20-21, 02:07 PM
Replies: 24,782
Views: 3,051,797
Posted By JohnDThompson

I just found a piece of steel (wrench handle, as...

I just found a piece of steel (wrench handle, as it turned out) that would fit between the slots of the driver, clamped it in a vise, put the driver on it, and used a chain whip and cheater bar (the...
07-20-21, 05:56 AM
Replies: 60
Views: 1,186
Posted By JohnDThompson

That's exactly what it means: Italian bottom...

That's exactly what it means: Italian bottom bracket threads are 36mm diameter; English bottom bracket threads are 34.8mm diameter. An Italian thread cup won't even begin to fit into an English...
07-19-21, 06:32 PM
Replies: 60
Views: 1,186
Posted By JohnDThompson

A USA-made titanium frame is unlikely to have...

A USA-made titanium frame is unlikely to have left the factory with an Italian thread bottom bracket shell. But anything can happen out in the wild. Perhaps the shell got stripped and was re-threaded...
07-19-21, 06:08 PM
Replies: 52
Views: 1,313
Posted By JohnDThompson

Probably easier to describe when it doesn't suck....

Probably easier to describe when it doesn't suck. :innocent:
07-19-21, 06:03 PM
Replies: 80
Views: 2,057
Posted By JohnDThompson

The section on flatulence is particularly...

The section on flatulence is particularly amusing. Who says doctors don't have a sense of humor?

Flatulence, which can cause great psychosocial distress, is unofficially described according to its...
07-19-21, 05:57 PM
Replies: 6
Views: 254
Posted By JohnDThompson

Cinelli changed to a 6mm Allen back in the mid to...

Cinelli changed to a 6mm Allen back in the mid to late 70s, IIRC. TTT stayed with 7mm for a while longer.
07-19-21, 10:36 AM
Replies: 6
Views: 254
Posted By JohnDThompson

[QUOTE=Drillium Dude;22147796]Looks complete but...

[QUOTE=Drillium Dude;22147796]Looks complete but for the special bendy-wrench for the two-bolt Record seat post. The hex key portion of the T-wrench is the correct 7mm size for a Cinelli stem...
07-18-21, 04:11 PM
Replies: 11
Views: 325
Posted By JohnDThompson

For an upright riding position, perhaps consider...

For an upright riding position, perhaps consider a B-66 or B-67 instead of a B-17.
07-18-21, 04:10 PM
Replies: 19
Views: 423
Posted By JohnDThompson

Building up a bike using new components is almost...

Building up a bike using new components is almost always more expensive than buying a complete bike, but if you have a pile of parts already sitting around and the tools and experience to build a...
07-18-21, 02:37 PM
Replies: 11
Views: 262
Posted By JohnDThompson

If you can't "burp" the valve, perhaps replace...

If you can't "burp" the valve, perhaps replace the core with a different one. Valve cores can be purchased separately or salvaged from discarded tubes. It's particularly handy to have an extra core...
07-18-21, 05:35 AM
Replies: 18
Views: 429
Posted By JohnDThompson

I like linseed oil. It lubricates while you're...

I like linseed oil. It lubricates while you're building the wheel, then hardens over the course of a couple days into a varnish that locks the threads, but not so much that the wheel can't be trued...
07-18-21, 05:32 AM
Replies: 4
Views: 181
Posted By JohnDThompson

And front calipers will often have two such star...

And front calipers will often have two such star washers, to provide wrench clearance from the headset cups.
07-18-21, 05:29 AM
Replies: 6
Views: 272
Posted By JohnDThompson

Well, the OP says it is a "Gitane," which used to...

Well, the OP says it is a "Gitane," which used to be a French brand and used French thread components. But the specific model appears to be an Asian-made Gitane-in-name-only, and as you suggest is...
07-18-21, 05:19 AM
Replies: 123
Views: 2,423
Posted By JohnDThompson

And that's not all! ...

And that's not all!

https://faculty.georgetown.edu/jod/texts/twain.german.html
07-17-21, 06:53 PM
Replies: 24
Views: 749
Posted By JohnDThompson

Certainly worth salvaging! If you're going...

Certainly worth salvaging!

If you're going to repaint it, I'd take the opportunity to add a second set of eyelets onto the dropouts, so they don't have to share duty between the rack and the...
07-17-21, 06:40 PM
Replies: 2,049
Views: 217,419
Posted By JohnDThompson

Pulled out my fixed gear bike to ride today, and...

Pulled out my fixed gear bike to ride today, and lo and behold, the rear tubular tire was flat. No sign of a sealant leak, so I couldn't determine where the puncture is. Nothing fancy; just a YJ "3...
07-17-21, 06:12 PM
Replies: 15
Views: 379
Posted By JohnDThompson

1/2" refers to the thread diameter (1/2" x...

1/2" refers to the thread diameter (1/2" x 20tpi), not the distance across the flats, just as 9/16" (14.2875mm) refers to the thread diameter (9/16" x 20tpi), not the 15mm distance across the flats....
07-17-21, 05:35 PM
Replies: 75
Views: 2,365
Posted By JohnDThompson

Not to mention, if you forget that your glasses...

Not to mention, if you forget that your glasses are over your straps when you remove your helmet, your expensive prescription glasses go flying off to land in the gravel or poison ivy, or just...
07-17-21, 05:25 PM
Replies: 26
Views: 785
Posted By JohnDThompson

Unless maintaining/restoring to original spec is...

Unless maintaining/restoring to original spec is important, maybe something like these Spenco Velcro brake lever hoods? They wrap around the body and secure with Velcro; should be able to work on a...
07-17-21, 10:47 AM
Replies: 12
Views: 365
Posted By JohnDThompson

Nice bike, but $300 seems optimistic.

Nice bike, but $300 seems optimistic.
07-17-21, 10:45 AM
Replies: 17
Views: 351
Posted By JohnDThompson

Those Ergopower levers you are considering are...

Those Ergopower levers you are considering are probably the most extensive/expensive way to modify your bike in the way you desire. Not only would they cost you $110 just for the levers, but you'd...
07-17-21, 10:31 AM
Replies: 26
Views: 785
Posted By JohnDThompson

Those look similar to Universal or Balilla lever...

Those look similar to Universal or Balilla lever bodies. I seem to recall some modern reproductions of these.
07-17-21, 10:19 AM
Replies: 20,431
Views: 3,509,378
Posted By JohnDThompson

It's a nice looking bike, certainly. But not...

It's a nice looking bike, certainly. But not $2,000 worth of nice.
07-17-21, 09:33 AM
Replies: 16
Views: 432
Posted By JohnDThompson

Different manufacturers used different materials...

Different manufacturers used different materials and thicknesses for their hoods. Traditional gum rubber was popular with many high-end European marques, e.g. Campagnolo, Modolo, Universal, etc....
07-17-21, 08:34 AM
Replies: 80
Views: 2,057
Posted By JohnDThompson

The voice of experience, no doubt. :innocent:

The voice of experience, no doubt. :innocent:
07-16-21, 07:27 AM
Replies: 26
Views: 785
Posted By JohnDThompson

I've always been fond of Campagnolo's cam-type...

I've always been fond of Campagnolo's cam-type caliper release. After Campagnolo's patent lapsed, you could find them on other brakes, e.g. SunTour Superbe, various Gran Compe models, and even...
07-16-21, 06:56 AM
Replies: 80
Views: 2,057
Posted By JohnDThompson

Do I smell a troll?

Do I smell a troll?
07-15-21, 11:32 AM
Replies: 19
Views: 558
Posted By JohnDThompson

That's a fairly short fender (albeit not as short...

That's a fairly short fender (albeit not as short as those seatpost-mounted ones that BikeSnobNYC derisively termed "filth prophylactics"). Longer ones work better to control spray (especially for...
Forum: Road Cycling
07-15-21, 11:21 AM
Replies: 8
Views: 300
Posted By JohnDThompson

Check if Garmin has a firmware update available....

Check if Garmin has a firmware update available. My ancient eTrex Vista was acting funky for a long time (random time/date display, difficulty locking into satellites, etc.) and it got so annoying I...
07-15-21, 11:07 AM
Replies: 14
Views: 311
Posted By JohnDThompson

The Sakae Ringyo crank arms can be removed with a...

The Sakae Ringyo crank arms can be removed with a standard 22mm crank tool. A hook spanner like the Hozan C-205 will remove the lockring from the adjustable cup, and the Park HCW-11 will allow you to...
07-15-21, 10:39 AM
Replies: 13
Views: 494
Posted By JohnDThompson

I checked it out of the library to read. :)

I checked it out of the library to read. :)
07-14-21, 08:58 PM
Replies: 13
Views: 494
Posted By JohnDThompson

I recommend the book "No Hands" for a readable,...

I recommend the book "No Hands" for a readable, engaging history of the Schwinn Bicycle Company:

https://www.amazon.com/No-Hands-Schwinn-American-Institution/dp/0805035532
07-14-21, 08:43 PM
Replies: 31
Views: 536
Posted By JohnDThompson

I only replace it if there's a problem. As others...

I only replace it if there's a problem. As others have noted above, non-adhesive rubber rim strips can slip out of place. I prefer the adhesive Velox rim tape. I have wheels over 40 years old with...
07-14-21, 08:36 PM
Replies: 7
Views: 300
Posted By JohnDThompson

Yes, it uses the old "Boss"-type remover tool,...

Yes, it uses the old "Boss"-type remover tool, "TL-FW20"



Yes, a safety measure in case something gets jammed up. But the sprockets move individually in that situation, and there is no ratchet...
07-14-21, 11:37 AM
Replies: 19
Views: 558
Posted By JohnDThompson

If you have mudguards, wheel removal is quite...

If you have mudguards, wheel removal is quite awkward with rear-facing dropouts.
07-14-21, 11:26 AM
Replies: 24
Views: 668
Posted By JohnDThompson

The good news is that they caught it before you...

The good news is that they caught it before you had a full-on myocardial infarction. And bypass surgery today is so much better than it was when I started out in healthcare 30 years ago.
07-14-21, 11:23 AM
Replies: 23
Views: 680
Posted By JohnDThompson

A woman in our group ride last week was running a...

A woman in our group ride last week was running a 56T ring. She was probably in her 50s.






And she was also running 650C wheels :innocent:
07-14-21, 11:19 AM
Replies: 2,437
Views: 254,454
Posted By JohnDThompson

Late to the party? :) The "Show me your cat"...

Late to the party? :)

The "Show me your cat" thread has been rolling along since early 2013
07-14-21, 11:11 AM
Replies: 117
Views: 3,196
Posted By JohnDThompson

How do you determine country of origin? Maybe the...

How do you determine country of origin? Maybe the frame was made in USA, using British-drawn steel, outfitted with a Japanese drivetrain, running with French rims and chain and Italian handlebars and...
07-14-21, 05:53 AM
Replies: 4,862
Views: 616,092
Posted By JohnDThompson

Mine are marked "27" and measure 25.5mm...

Mine are marked "27" and measure 25.5mm wide.
Showing results 1 to 50 of 1000
 


 
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