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Search: Posts Made By: JohnDThompson
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Forum: Road Cycling
09-22-21, 05:06 PM
Replies: 2
Views: 162
Posted By JohnDThompson

Yes, a bottom bracket mounted dynamo. Soubitez...

Yes, a bottom bracket mounted dynamo. Soubitez made one, Sanyo made a similar one. I like them better than the sidewall-driven bottle dynamos. No chance of them coming loose and landing in the...
09-22-21, 03:13 PM
Replies: 6
Views: 152
Posted By JohnDThompson

There are at least half a dozen mutually...

There are at least half a dozen mutually incompatible, nominally 26" tire sizes. Your tire marked 26" x 1.75 is probably a 559mm bead seat diameter. Look for an unambiguous ETRTO/ISO tire size...
09-22-21, 02:55 PM
Replies: 5
Views: 161
Posted By JohnDThompson

If the axle turns smoothly and there's no play,...

If the axle turns smoothly and there's no play, they don't need service. I have some 35 year old Dura-Ace PD-7400 pedals that have never been serviced and they're just fine. Shimano included the...
09-20-21, 05:24 PM
Replies: 22
Views: 615
Posted By JohnDThompson

I got that as well, but as I had no intention of...

I got that as well, but as I had no intention of entering personal or financial information, I clicked on "go there anyway" and got "Site not found."



Well, that helps. Thanks!
09-20-21, 03:06 PM
Replies: 16
Views: 653
Posted By JohnDThompson

We've had several donated to the charity shop...

We've had several donated to the charity shop where I volunteer. They do work, but you don't get to choose when it shifts gears. If you like it, fine. If not, pass. I feel it to be needless...
09-19-21, 06:16 PM
Replies: 11
Views: 316
Posted By JohnDThompson

Older 5nn series frames were entirely brazed in...

Older 5nn series frames were entirely brazed in Waterloo; later ones, and the 6nn series, used the Japan-built subassemblies. You can tell the difference in most cases (there are, alas, exceptions)...
Forum: Road Cycling
09-19-21, 05:59 PM
Replies: 20
Views: 523
Posted By JohnDThompson

It's a fairly frequent problem, especially on low...

It's a fairly frequent problem, especially on low spoke count wheels requiring high spoke tension. Drive side spokes on those wheels can have very high tension and are usually the first to show this...
Forum: Road Cycling
09-19-21, 05:55 PM
Replies: 34
Views: 782
Posted By JohnDThompson

That's one of the reasons why I use 165mm crank...

That's one of the reasons why I use 165mm crank arms on my fixed gear bikes.
Forum: Framebuilders
09-19-21, 05:48 PM
Replies: 4
Views: 153
Posted By JohnDThompson

While in principle the blades could be cold-set...

While in principle the blades could be cold-set back into alignment, you've got some serious rust on those blades. Blade replacement is a possibility, but it's likely more cost effective and safer to...
Forum: Framebuilders
09-19-21, 05:43 PM
Replies: 8
Views: 273
Posted By JohnDThompson

That's what I do. It's not rocket surgery, after...

That's what I do. It's not rocket surgery, after all. And you can use the tubes to adjust the angle to more closely match what you want.



It depends on the lug. Bulge-formed/stamped lugs are...
09-19-21, 05:31 PM
Replies: 11
Views: 316
Posted By JohnDThompson

Looks like a decent bike, but it's not a Trek....

Looks like a decent bike, but it's not a Trek. Much of the Trek product line was built in Waterloo in that period, except for the 4nn series, which were imported from Japan as bare, unpainted frames...
09-19-21, 08:13 AM
Replies: 4
Views: 256
Posted By JohnDThompson

I'd take a stiff wire brush and get rid of the...

I'd take a stiff wire brush and get rid of the rest of that plating. Chrome is quite hard, and having fragments floating around in the race won't be good for it. Then you can more clearly inspect the...
09-19-21, 07:59 AM
Replies: 10
Views: 303
Posted By JohnDThompson

I remember asking the Shimano tech people about...

I remember asking the Shimano tech people about the friction mode on the original SIS shifters back in 1985 when they first came out. Their explanation was that friction mode was a fall-back, not...
09-17-21, 11:29 AM
Replies: 7
Views: 191
Posted By JohnDThompson

No, the MF-TZ31 is a freewheel, not a cassette....

No, the MF-TZ31 is a freewheel, not a cassette. The OP says he already unsuccessfully tried the Park FR-5.2, which should have worked if he actually had a cassette:



He needs either the Park...
09-17-21, 06:36 AM
Replies: 7
Views: 191
Posted By JohnDThompson

Park FR-1.3 or Shimano TL-FW30 will work on your...

Park FR-1.3 or Shimano TL-FW30 will work on your freewheel.
09-17-21, 06:18 AM
Replies: 5
Views: 352
Posted By JohnDThompson

You could be right:

You could be right:
09-16-21, 08:11 AM
Replies: 5
Views: 352
Posted By JohnDThompson

That's the tension adjuster for Gran Sport...

That's the tension adjuster for Gran Sport shifters:
09-16-21, 07:56 AM
Replies: 96
Views: 2,402
Posted By JohnDThompson

Whatever you clean using kerosene or WD-40 or...

Whatever you clean using kerosene or WD-40 or whatever that leaves an oily film will have that oily film completely coating the part you cleaned, where it will collect dirt and grit while in use. If...
09-15-21, 08:26 PM
Replies: 96
Views: 2,402
Posted By JohnDThompson

The degreaser itself may be biodegradeable, but...

The degreaser itself may be biodegradeable, but the stuff it removes from your bike components is not biodegradeable.

I like OMS because it is safe and effective, and can be reused multiple times...
09-15-21, 06:19 AM
Replies: 16
Views: 390
Posted By JohnDThompson

There are at least half a dozen mutually...

There are at least half a dozen mutually incompatible, nominally 26" tire sizes, three of which include the "650" designation (650A, with 590mm bead seat diameter, 650B, with 584mm BSD, and 650C,...
09-14-21, 07:38 AM
Replies: 102
Views: 12,210
Posted By JohnDThompson

I have several Zeus cranks in use currently (two...

I have several Zeus cranks in use currently (two road doubles, one track) that have given me several decades of trouble-free use. The biggest problem is finding chainrings for the unique Zeus...
09-14-21, 07:25 AM
Replies: 6
Views: 264
Posted By JohnDThompson

I've not seen that Shimano ever offered these...

I've not seen that Shimano ever offered these separately as replacement parts. It's possible that a bearing supply house might have suitable replacements. Failing that, the old-school sealing was...
09-14-21, 07:22 AM
Replies: 16
Views: 480
Posted By JohnDThompson

Having four spokes break suggests this will...

Having four spokes break suggests this will continue to be a problem. At 220#, you may better be served by a hand built and tensioned wheel. If the rim and hub are in decent condition, those may be...
09-14-21, 07:18 AM
Replies: 5
Views: 212
Posted By JohnDThompson

Look for pits in the bearing cones, and chips on...

Look for pits in the bearing cones, and chips on the sun and planet gears. Sourcing replacements might be a problem.
09-14-21, 07:04 AM
Replies: 14
Views: 313
Posted By JohnDThompson

Are you certain that what you think is wear is...

Are you certain that what you think is wear is not actually shift ramps to facilitate shifting?



In many cases, the chainrings are available separately. You do need to know the bolt-circle...
09-14-21, 06:56 AM
Replies: 316
Views: 51,827
Posted By JohnDThompson

Not to mention, Falk, Durifort, Vitus, Accles &...

Not to mention, Falk, Durifort, Vitus, Accles & Pollock, Phoenix, etc.
09-13-21, 12:05 PM
Replies: 33
Views: 948
Posted By JohnDThompson

And sometimes it knocks the pad clean out of the...

And sometimes it knocks the pad clean out of the holder, which can be a PITA if it happens away from your home/shop. I'll take a few seconds to remove the pad to avoid this.
09-13-21, 11:56 AM
Replies: 42
Views: 1,182
Posted By JohnDThompson

For black sidewalls, it may be as simple as using...

For black sidewalls, it may be as simple as using a black marker pen.
09-13-21, 07:05 AM
Replies: 42
Views: 1,182
Posted By JohnDThompson

I prefer tan sidewalls because blackwall tires...

I prefer tan sidewalls because blackwall tires always remind me too much of the cheap, heavy, nasty department store tires BITD. Good tires BITD had thin, supple, tan sidewalls. Today's blackwall...
09-13-21, 06:58 AM
Replies: 2,101
Views: 228,343
Posted By JohnDThompson

I've had good luck with the YJ Servizio Corse...

I've had good luck with the YJ Servizio Corse tires being both round and straight. I note that Miele Man has not yet glued the tires onto the rims. That is good. I always stretch my tires on rims for...
09-13-21, 06:34 AM
Replies: 7
Views: 268
Posted By JohnDThompson

Yes, you can break the chain to clean it, but...

Yes, you can break the chain to clean it, but first look closely at the chain to see if there is a quick-link already installed. If you find one, use that to open the chain. If not, break the chain...
09-12-21, 06:28 PM
Replies: 10
Views: 299
Posted By JohnDThompson

Sure, but there's no real advantage in using...

Sure, but there's no real advantage in using indexed derailleur cable housing with a friction shifting system. Before indexed shifting appeared on the scene, the same type of housing was used for...
09-12-21, 05:53 PM
Replies: 33
Views: 948
Posted By JohnDThompson

Not sure; that's why I asked. I see plenty of...

Not sure; that's why I asked. I see plenty of people riding around with their caliper release levers in the open position, so it's a real possibility that the caliper was adjusted with the release...
09-11-21, 06:57 PM
Replies: 33
Views: 948
Posted By JohnDThompson

Absolutely serious. It takes maybe ten seconds to...

Absolutely serious. It takes maybe ten seconds to remove or install a brake pad; much less time and effort than deflating and reinflating a tire with a hand pump.

But Rick Makes a good point re:...
09-11-21, 06:29 PM
Replies: 33
Views: 948
Posted By JohnDThompson

Or, remove one of the brake pads, remove the...

Or, remove one of the brake pads, remove the wheel. Return the pad to the caliper after re-installing the wheel. I find that to be less work than pumping the tire all the way up again.
09-11-21, 06:23 PM
Replies: 75
Views: 1,765
Posted By JohnDThompson

Thigh-length Jobst stockings, FTW! :lol: ...

Thigh-length Jobst stockings, FTW! :lol:
...
09-11-21, 05:43 AM
09-10-21, 06:30 AM
Replies: 33
Views: 769
Posted By JohnDThompson

Sometimes the marks are somewhat arcane; rather...

Sometimes the marks are somewhat arcane; rather than explicitly stating the thread spec, cup shape, presence or absence of rings, etc. were used to indicate thread spec:
09-10-21, 06:14 AM
Replies: 6
Views: 246
Posted By JohnDThompson

Stripped pedal thread in crank arm should be...

Stripped pedal thread in crank arm should be repairable with a helicoil for less than the cost of a new crank. Have you checked with bike shops about helicoil repair?
09-09-21, 06:44 AM
Replies: 12
Views: 8,565
Posted By JohnDThompson

I took my web site down a couple months ago, when...

I took my web site down a couple months ago, when I switched ISPs, so the link to "Bicycle Geometry 101" no longer works. I'll upload it here to make it accessible:
09-08-21, 06:07 AM
Replies: 95
Views: 1,743
Posted By JohnDThompson

Pumped up the tires and went for a ride!

Pumped up the tires and went for a ride!
09-07-21, 06:05 AM
Replies: 9
Views: 180
Posted By JohnDThompson

VAR-78. Works on tight jar lids in the kitchen,...

VAR-78. Works on tight jar lids in the kitchen, too:
09-07-21, 05:17 AM
Replies: 11
Views: 506
Posted By JohnDThompson

Dish detergent with water, in a spray bottle....

Dish detergent with water, in a spray bottle. Wipe off with clean rags. Use OMS on stubborn tar or grease.
09-06-21, 07:10 PM
Replies: 16
Views: 536
Posted By JohnDThompson

The Gran Sport shifter is significantly different...

The Gran Sport shifter is significantly different from the Record shifter. The Dia-Compe levers will not fit on the Gran Sport clamp.
09-06-21, 06:35 PM
Replies: 16
Views: 565
Posted By JohnDThompson

Nice bike. I concur it's probably a custom build...

Nice bike. I concur it's probably a custom build re-badged as a Puch for sponsorship reasons.



This style Cinelli BB shell was made before about 1981. The later shells had the "winged C" logo...
09-06-21, 04:12 PM
Replies: 19
Views: 962
Posted By JohnDThompson

I like to be able to move the upper run of the...

I like to be able to move the upper run of the chain up/down by about 1-2cm at the midpoint between the crank and the rear sprocket. Looser than that, and I get annoying lash when I change pedal...
09-06-21, 03:46 PM
Replies: 4
Views: 206
Posted By JohnDThompson

If a thief really wants your bike, chances are,...

If a thief really wants your bike, chances are, they'll get it regardless of the lock. When possible, keep the bike indoors, in a secure location. If you have to leave your bike unattended for an...
09-06-21, 02:52 PM
Replies: 76
Views: 2,319
Posted By JohnDThompson

Wheelsmith are made in Milwaukee. ...

Wheelsmith are made in Milwaukee.



Selle Anatomica are made in California.



Paul derailleurs are made in California, but only rear, AFAIK.
09-06-21, 05:44 AM
Replies: 24
Views: 600
Posted By JohnDThompson

Or as soon as you buy another set of spokes to...

Or as soon as you buy another set of spokes to build the other wheel.
09-06-21, 05:32 AM
Replies: 21
Views: 542
Posted By JohnDThompson

SunTour derailleurs don't have an upper pivot...

SunTour derailleurs don't have an upper pivot spring, and rely on that stop to hold the parallelogram in place. Lacking the stop, chain tension will pull the parallelogram too far forward.
Showing results 1 to 50 of 1000
 


 
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