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Search: Posts Made By: JohnDThompson
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07-19-19, 09:04 AM
Replies: 34
Views: 713
Posted By JohnDThompson

For a couple bucks, it's worth a try. My...

For a couple bucks, it's worth a try. My experience with them is not so stellar, but YYMV. One of my co-workers memorably described it as "like sitting on a bag full of snot."
07-19-19, 08:39 AM
Replies: 31
Views: 902
Posted By JohnDThompson

The KKT "Pro-Ace" pedals were as close a copy of...

The KKT "Pro-Ace" pedals were as close a copy of the Record pedal as you're likely to find anywhere, right down to the rifling on the axles. The axles, cones, and locknuts also interchange with...
07-19-19, 08:32 AM
Replies: 31
Views: 902
Posted By JohnDThompson

Quite true. I've long wondered why Campagnolo...

Quite true. I've long wondered why Campagnolo didn't copy Zeus and use titanium for the cages. "Not invented here," maybe?
07-19-19, 08:30 AM
Replies: 9
Views: 294
Posted By JohnDThompson

Ypu're right; I hadn't noticed that. :( ...

Ypu're right; I hadn't noticed that. :(




Both A9 and B10 headset were available with the Hinault branding. We went through thousands of them at Trek.
07-18-19, 06:16 PM
Replies: 10
Views: 181
Posted By JohnDThompson

I'm 64 and still ride fixed gear on the road...

I'm 64 and still ride fixed gear on the road frequently. Here I am a couple years ago finished a century ride on my fixed gear bike:

http://www.os2.dhs.org/~john/ride4nature.jpg
07-18-19, 04:08 PM
Replies: 29
Views: 684
Posted By JohnDThompson

Have you found that servicing the current bottom...

Have you found that servicing the current bottom bracket is an undue burden? If not, why bother replacing it? After all, you know that the current unit works with your crank and drivetrain. The...
07-18-19, 03:57 PM
Replies: 34
Views: 713
Posted By JohnDThompson

How old is your Trek? If you have the serial...

How old is your Trek? If you have the serial number, you can look it up on the vintage-trek.com web site, find the catalog corresponding to the year it was made, and see what the catalog thinks the...
07-18-19, 07:37 AM
Replies: 31
Views: 902
Posted By JohnDThompson

The chromed steel cage pedals are "Record," the...

The chromed steel cage pedals are "Record," the pedals with black anodized aluminum cages and steel axles are "Superleggero" (aka "Record Superlight"), the pedals with black anodized aluminum cages...
07-18-19, 07:08 AM
Replies: 9
Views: 294
Posted By JohnDThompson

That's an A9 headset; the B10 had Delrin cups and...

That's an A9 headset; the B10 had Delrin cups and race seats:

http://www.velobase.com/CompImages/Headsets/FE60E43A-7F44-4CEF-9203-F7D21B621E2C.jpeg
VeloBase.com - Component: Stronglight B10...
07-18-19, 06:10 AM
Replies: 18
Views: 920
Posted By JohnDThompson

Once adjusted properly, the hub should stay...

Once adjusted properly, the hub should stay adjusted. Quality balls will not ovalize in normal use; there's no reason not to use grade 25 balls. If the axle turns freely and smoothly, there's no...
07-17-19, 03:02 PM
Replies: 16
Views: 439
Posted By JohnDThompson

Blame the bean-counters. We had to braze those...

Blame the bean-counters. We had to braze those second eyelets onto the dropouts.
07-17-19, 02:49 PM
Replies: 24,429
Views: 1,912,230
Posted By JohnDThompson

:thumb: Looks like you still have some decisions...

:thumb: Looks like you still have some decisions to make…
07-17-19, 02:22 PM
Replies: 16
Views: 439
Posted By JohnDThompson

Is suspect so, with the weight increasing the...

Is suspect so, with the weight increasing the force of vibrations that loosen the fasteners.

On a similar note, if you can, attach mudguards and racks to separate eyelets to minimize problems....
07-17-19, 12:10 PM
Replies: 37
Views: 1,010
Posted By JohnDThompson

Wide, firm platform to support soft-soled shoes?...

Wide, firm platform to support soft-soled shoes? Check.

Accommodates slotted cleat? Check.

Looks "good" to me!
07-17-19, 07:37 AM
Replies: 37
Views: 1,010
Posted By JohnDThompson

MKS also makes an affordable copy of the Lyotard...

MKS also makes an affordable copy of the Lyotard mod. 23 pedal. The large tab on this design makes it easy to get your foot in the clip; an important featrure on a fixed gear bike particularly.
...
07-17-19, 07:22 AM
Replies: 31
Views: 902
Posted By JohnDThompson

The only difference between Record and Super...

The only difference between Record and Super Record hubs was the axle. Super Record used a titanium axle, while Record used a steel axle. You can determine this with a magnet; titanium is...
07-16-19, 04:51 PM
Replies: 10
Views: 296
Posted By JohnDThompson

Note that Campagnolo Gran Sport, Miche, Ofmega,...

Note that Campagnolo Gran Sport, Miche, Ofmega, Gipiemme, and probably other Campagnolo clone pedals of that era used parts that will interchange with Campagnolo Record pedals. The third-party...
07-16-19, 04:34 PM
Replies: 9
Views: 317
Posted By JohnDThompson

Not unusual, anyway. Supply-chain issues...

Not unusual, anyway. Supply-chain issues sometimes made one or the other unavailable, and there's no functional difference between them.
07-16-19, 04:13 PM
Replies: 9
Views: 317
Posted By JohnDThompson

Shimano SF. Trek used those interchangeably with...

Shimano SF. Trek used those interchangeably with Campagnolo 1010.
07-16-19, 11:47 AM
Replies: 31
Views: 710
Posted By JohnDThompson

Yes, that sounds right. 8mm x 0.75mm is the...

Yes, that sounds right. 8mm x 0.75mm is the standard thread for a regular chainring bolt, so you can check by threading a regular chainring bolt into one of the undamaged inner ring mounting holes.
...
07-16-19, 11:40 AM
Replies: 11
Views: 514
Posted By JohnDThompson

Well, there are some, anyway. The guy in the...

Well, there are some, anyway. The guy in the picture wearing the Campagnolo T-shirt is me. :)
07-16-19, 09:03 AM
Replies: 17,468
Views: 2,691,112
Posted By JohnDThompson

Front-wheel drive, FTW!

Front-wheel drive, FTW!
07-16-19, 08:59 AM
Replies: 10
Views: 296
Posted By JohnDThompson

Yes, 7mm x 0.75mm: ...

Yes, 7mm x 0.75mm:

http://www.os2.dhs.org/~john/campy-pedal-axle-thread.jpg
07-16-19, 08:44 AM
Replies: 21,007
Views: 2,026,673
Posted By JohnDThompson

An alternative would be to use a standard thread...

An alternative would be to use a standard thread fork and replace the 26tpi headset with a 24tpi headset.
07-16-19, 08:33 AM
Replies: 11
Views: 514
Posted By JohnDThompson

Here's a Bicycling! magazine article from 1984...

Here's a Bicycling! magazine article from 1984 showing the inside of the Trek factory at the time I was working there:

http://www.os2.dhs.org/~john/Trek/index.html
07-16-19, 08:14 AM
Replies: 31
Views: 710
Posted By JohnDThompson

While I'd also be reluctant to ride with only...

While I'd also be reluctant to ride with only four bolts, I should also point out that the inner ring mounting is quite different on the Avocet touring triple and the Sugino AT triple. The Avocet...
07-15-19, 12:28 PM
Replies: 14
Views: 422
Posted By JohnDThompson

Saddles are a personal choice; what works for me...

Saddles are a personal choice; what works for me doesn't necessarily work for you. The manufacturer can save a little money by using the same saddle on multiple models, and the dealer can make a...
07-13-19, 04:21 PM
Replies: 22
Views: 661
Posted By JohnDThompson

No worries. the lockring is supported by the cup...

No worries. the lockring is supported by the cup it surrounds, so even an aluminum lockring doesn't get distorted.
07-12-19, 08:51 PM
Replies: 2
Views: 282
Posted By JohnDThompson

Drill them out and replace them with copper...

Drill them out and replace them with copper rivets:

https://www.youtube.com/watch?reload=9&v=NZtRrxsxxao
07-12-19, 08:39 PM
Replies: 4
Views: 380
Posted By JohnDThompson

There is a tool for that BB: ...

There is a tool for that BB:

http://www.os2.dhs.org/~john/suntour-bb-tool.jpg

Fun fact: Phil Wood BB mounting rings will fit the SunTour cartridge, so if you ever want to use it in a frame with...
07-12-19, 08:33 PM
Replies: 42
Views: 2,078
Posted By JohnDThompson

Back in the early 80s, one of my co-workers at...

Back in the early 80s, one of my co-workers at Trek built himself a 12# lugged steel road bike, using all the fancy-pants weight-weenie components of the era: Zeus 2000 cranks and freewheel, Regina...
07-12-19, 05:43 PM
Replies: 22
Views: 661
Posted By JohnDThompson

Have you tried a lockring pliers rather than the...

Have you tried a lockring pliers rather than the hooked spanner? The official lockring pliers from e.g. VAR or Hozan tend to be expensive, but it's fairly trivial to fabricate a functional copy from...
07-12-19, 05:27 PM
Replies: 9
Views: 406
Posted By JohnDThompson

That you have play at some spots but not others...

That you have play at some spots but not others suggests that the bottom bracket shell may need facing. This may or may not solve your clicking problem.
07-12-19, 05:17 PM
Replies: 31
Views: 933
Posted By JohnDThompson

The way Mark Stonich at BikeSmithDesign shortens...

The way Mark Stonich at BikeSmithDesign shortens cranks is to drill and tap a new pedal eye closer to the spindle and then cut off and smooth the excess material along with the old pedal eye. Of...
07-12-19, 09:28 AM
Replies: 48
Views: 82,083
Posted By JohnDThompson

Some cranks do not have clearance for a gear...

Some cranks do not have clearance for a gear puller's arms to reach behind the crank; e.g. low-end MTB cranks with riveted chainrings.
07-12-19, 09:19 AM
Replies: 15
Views: 675
Posted By JohnDThompson

Internal cam skewers have greater mechanical...

Internal cam skewers have greater mechanical advantage than external cam skewers, and since the length of the lever arm is pretty much the same on each, it's harder to clamp an external cam skewer...
Forum: Road Cycling
07-11-19, 06:15 PM
Replies: 13
Views: 630
Posted By JohnDThompson

What benefits are you hoping to enjoy by...

What benefits are you hoping to enjoy by replacing the bike?

FWIW, I still find my 40 year old TS Isaac custom bike to be my preferred ride for century rides and other extended rides.
07-11-19, 02:49 PM
Replies: 5
Views: 371
Posted By JohnDThompson

What crank from what production year are you...

What crank from what production year are you intending to use with this bottom bracket?

http://www.os2.dhs.org/~john/campy-BB-specs.pdf
07-11-19, 02:29 PM
Replies: 10
Views: 1,755
Posted By JohnDThompson

Unless the extra length leads to a clearance...

Unless the extra length leads to a clearance problem somewhere, this is just a cosmetic issue.
07-11-19, 06:27 AM
Replies: 10
Views: 436
Posted By JohnDThompson

753 shouldn't be cold-set. Any reshaping of the...

753 shouldn't be cold-set. Any reshaping of the tubes needs to be done prior to heat treatment. Reynolds even shipped the fork blades pre-raked for that reason.

We tried to cold set a crashed team...
Forum: Road Cycling
07-10-19, 03:26 PM
Replies: 33
Views: 2,087
Posted By JohnDThompson

Thank you for your pedantry. Consider me properly...

Thank you for your pedantry. Consider me properly chastised.
07-09-19, 08:36 PM
Replies: 14
Views: 450
Posted By JohnDThompson

Is there a spacer on the non-drive-side you could...

Is there a spacer on the non-drive-side you could move to the drive side? Failing that, a thinner locknut and a spacer added to the drive side? Both these would call for re-dishing the wheel.
07-09-19, 11:09 AM
Replies: 7
Views: 418
Posted By JohnDThompson

It's possible the manufacturer or distributor...

It's possible the manufacturer or distributor would replace it. I had a plastic "Planet Bike" fender break, took it to the LBS, they gave the shards to the distributor, and a week later I had a new...
07-09-19, 06:43 AM
Replies: 31
Views: 933
Posted By JohnDThompson

TA "Carmina" cranks are available in 155mm,...

TA "Carmina" cranks are available in 155mm, 160mm, 162.5mm, 165mm, 167.5mm, 170mm, 172.5mm, 175mm, 177.5mm and 180mm lengths, but somewhat outside your $200 limit.
...
Forum: Road Cycling
07-08-19, 05:58 PM
Replies: 33
Views: 2,087
Posted By JohnDThompson

I'm not a fan of gel shorts. I prefer a thin...

I'm not a fan of gel shorts. I prefer a thin chamois, just enough to wick away sweat and prevent chaffing.
07-08-19, 05:26 PM
Replies: 21,007
Views: 2,026,673
Posted By JohnDThompson

I have several SW hubs here. The nice thing about...

I have several SW hubs here. The nice thing about them is they have fewer internal parts than the AW (and no fiddly pawl springs to go missing), so they're dead-easy to overhaul. The springless pawls...
07-06-19, 06:12 PM
Replies: 3
Views: 454
Posted By JohnDThompson

Yes, priced to move.

Yes, priced to move.
07-06-19, 12:26 PM
Replies: 3
Views: 454
Posted By JohnDThompson

Bottecchia f/f

64cm Bottecchia "Special" frame and fork. Ofmega headset included. US$25 plus shipping:

http://www.os2.dhs.org/~john/riverview/bottecchia/20190706_093557.jpg
...
07-05-19, 01:40 PM
Replies: 63
Views: 2,161
Posted By JohnDThompson

The formula will work with any units you want, as...

The formula will work with any units you want, as long as you're consistent throughout. E.g. don't measure the rim radius in inches and the hub radius in millimeters and expect it to work. Pick one...
07-05-19, 12:49 PM
Replies: 5
Views: 329
Posted By JohnDThompson

Wow. Made his own lugs and components even. I...

Wow. Made his own lugs and components even. I feel like a slacker.
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