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Search: Posts Made By: JohnDThompson
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03-18-24, 07:51 AM
Replies: 28
Views: 507
Posted By JohnDThompson

My most complicated "cockpit." Thank goodness the...

My most complicated "cockpit." Thank goodness the bell is clearly labeled to avoid any confusion:...
03-16-24, 08:17 PM
Replies: 14
Views: 325
Posted By JohnDThompson

I did most of those for the 750/950 series frames.

I did most of those for the 750/950 series frames.
03-16-24, 08:02 PM
Replies: 20
Views: 392
Posted By JohnDThompson

Still using my Kingsbridge gauge from the 70s: ...

Still using my Kingsbridge gauge from the 70s:
https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulletin/604x427/kingsbridge_gauge_51f3aaca5bb4e578f5ead55be8180b64fac998d2.jpg
03-13-24, 06:59 AM
Replies: 16
Views: 309
Posted By JohnDThompson

Grease is not ideal for lubricating freewheels,...

Grease is not ideal for lubricating freewheels, especially in cold climates. The viscosity of grease can prevent the pawls from seating fully (or at all), resulting in freewheeling in both...
03-12-24, 06:06 PM
Replies: 22
Views: 3,635
Posted By JohnDThompson

Campagnolo bottom brackets can be … complicated....

Campagnolo bottom brackets can be … complicated. This document may help, and gives the offset and shoulder spacing measurements Mark asked about, above. It was printed before the C-Record era,...
03-11-24, 10:50 AM
Replies: 204
Views: 4,878
Posted By JohnDThompson

Their race; their rules.

Their race; their rules.
03-10-24, 09:36 AM
Replies: 21,619
Views: 3,018,126
Posted By JohnDThompson

We have similar art. Neenah Foundry, one of the...

We have similar art. Neenah Foundry, one of the largest manufacturers of manhole covers, is a local company:...
03-09-24, 02:30 PM
Replies: 11
Views: 260
Posted By JohnDThompson

Aelle was straight-gauge carbon-manganese tubing,...

Aelle was straight-gauge carbon-manganese tubing, just above Zeta in the product range:...
03-07-24, 08:42 AM
Replies: 3,221
Views: 407,581
Posted By JohnDThompson

Here's one option: ...

Here's one option:
https://m.media-amazon.com/images/I/61uiACY7ACL._SL1500_.jpg
https://www.amazon.com/Liquid-Latex-Professional-Special-Translucent/dp/B01MYNF067/ref=sr_1_18?sr=8-18
03-05-24, 11:54 AM
Replies: 16
Views: 865
Posted By JohnDThompson

It's for holding the pawls when you assemble the...

It's for holding the pawls when you assemble the body.
https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulletin/918x645/campy_fw_pawl_tool_64be47bcd26f3316907f19fdd7ea070e235020a9.jpg
02-29-24, 10:03 AM
Replies: 11
Views: 473
Posted By JohnDThompson

Like this: ...

Like this:
https://i2.wp.com/cdn.makezine.com/uploads/2010/09/rebar_bike_01.jpg
Forum: Road Cycling
02-29-24, 09:59 AM
Replies: 47
Views: 1,321
Posted By JohnDThompson

It's only "dumb" if you don't enjoy riding...

It's only "dumb" if you don't enjoy riding it.
02-29-24, 09:29 AM
Replies: 43
Views: 1,063
Posted By JohnDThompson

Ok, but that saddle is pretty obviously broken. I...

Ok, but that saddle is pretty obviously broken. I also like to fix and reuse things whenever possible, but there is a point of diminishing returns, and that saddle looks well past it.
02-28-24, 02:44 PM
Replies: 114
Views: 3,082
Posted By JohnDThompson

In most cases, yes. The charity shop where I...

In most cases, yes. The charity shop where I volunteer is part of an urban farm. We don't have a budget for new tubes (we rely totally on donations), so we patch tubes whenever possible. When it is...
02-26-24, 08:01 AM
Replies: 16
Views: 461
Posted By JohnDThompson

It does look original, except for rims and tires....

It does look original, except for rims and tires. Here's a spec sheet from BITD:
https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/722x1068/ata_lstl_cb21c77b1995dc299ed721de5a7bd23302ddb05b.jpg
02-25-24, 11:19 AM
Replies: 47
Views: 1,090
Posted By JohnDThompson

Chain length depends on your specific gear range...

Chain length depends on your specific gear range and chainstay length. If you have the old chain, trim the new chain to match. Otherwise, this may help:...
02-24-24, 11:00 AM
Replies: 17
Views: 650
Posted By JohnDThompson

IME, the issue with freewheels having more than...

IME, the issue with freewheels having more than seven sprockets is not the strength of the freewheel, but a propensity to axle breakage due to the longer unsupported length of axle needed to provide...
02-24-24, 10:53 AM
Replies: 22
Views: 1,195
Posted By JohnDThompson

And Google Books has his autobiography available...

And Google Books has his autobiography available for download (now in the public domain):...
02-24-24, 10:34 AM
Replies: 56
Views: 1,432
Posted By JohnDThompson

Sure, but you still need to get the fixed cup out...

Sure, but you still need to get the fixed cup out before you can install a cartridge.
02-24-24, 09:38 AM
Replies: 14
Views: 409
Posted By JohnDThompson

The frame and fittings were designed by Tim...

The frame and fittings were designed by Tim Isaac, who used that type of binder on the custom frames he built before joining Trek....
Forum: Road Cycling
02-23-24, 10:06 AM
Replies: 41
Views: 1,316
Posted By JohnDThompson

I haven't found that different pedals will solve...

I haven't found that different pedals will solve "hot foot" or numbness issues, but using an insole with more arch and metatarsal support did wonders for me.
02-23-24, 09:53 AM
Replies: 20
Views: 815
Posted By JohnDThompson

I use a pre-CSPC Campagnolo Record front...

I use a pre-CSPC Campagnolo Record front derailleur on my Stronglight 93 48-42-28 triple:...
02-23-24, 09:46 AM
Replies: 49
Views: 1,182
Posted By JohnDThompson

Sakae Ringyo made two-bolt posts in both the...

Sakae Ringyo made two-bolt posts in both the Campagnolo and Simplex styles in a range of diameters:...
02-23-24, 08:59 AM
Replies: 25
Views: 535
Posted By JohnDThompson

They are necessary when using indexed front...

They are necessary when using indexed front shifting with a derailleur and shifter that don't allow trimming to eliminate scraping the chain on the derailleur cage. To make indexed front shifting...
02-22-24, 05:11 PM
Replies: 25
Views: 628
Posted By JohnDThompson

I didn't measure chainline, but a Mistral crank...

I didn't measure chainline, but a Mistral crank on a Campagnolo spindle seems within what Suntherlands would call an acceptable fit:...
02-22-24, 08:35 AM
Replies: 70
Views: 2,575
Posted By JohnDThompson

Cantilever brakes can be a bit trickier to...

Cantilever brakes can be a bit trickier to convert from 27" to 700C. MAFAC cantilevers, for example, don't offer any reach adjustment for the pads. Shimano MC-70s have a few millimeters of reach...
02-19-24, 12:52 PM
Replies: 25
Views: 628
Posted By JohnDThompson

I don't see any such marks on the Ofmega and...

I don't see any such marks on the Ofmega and Avocet (made by Ofmega) cranks I have here. The blemishes look consistent with galling damage. Has the bike been left outdoors and/or in a corrosive...
02-13-24, 10:12 PM
Replies: 279
Views: 7,969
Posted By JohnDThompson

Unless you have bikes that work perfectly fine...

Unless you have bikes that work perfectly fine with rim brakes.
02-13-24, 06:10 PM
Replies: 279
Views: 7,969
Posted By JohnDThompson

And, your frame and fork have to be designed to...

And, your frame and fork have to be designed to handle disc brake loads.

I have nothing against disc brakes; they make a lot of sense especially for technical off-road riding. But rim brakes are...
02-13-24, 01:21 PM
Replies: 5
Views: 387
Posted By JohnDThompson

What I've done to quiet freewheels is to run oil...

What I've done to quiet freewheels is to run oil into the body until it comes out the other side. Wipe off the excess, and then seal the gap between the inner and outer freewheel body with a heavy...
02-13-24, 01:00 PM
Replies: 6
Views: 727
Posted By JohnDThompson

I liked the Blackburn version, with the little...

I liked the Blackburn version, with the little dimples to fit into the bolt holes on the cage....
02-10-24, 08:26 AM
Replies: 38
Views: 1,232
Posted By JohnDThompson

Yes, precessional loosening is an issue with...

Yes, precessional loosening is an issue with French and Italian thread bottom brackets. That's why English and Swiss thread bottom brackets use a left-hand thread (counter-clockwise to tighten) on...
02-05-24, 11:13 AM
Replies: 44
Views: 1,405
Posted By JohnDThompson

The "Le Champion" model is a full-on race bike:...

The "Le Champion" model is a full-on race bike: short wheelbase, tubular tires, light frame, narrow race gearing. If what you plan is a loaded tour (panniers, camping equipment, etc.), it's not ideal...
02-02-24, 08:06 AM
Replies: 23
Views: 960
Posted By JohnDThompson

It's a Superbe-branded Sakae Ringyo ESL stem.

It's a Superbe-branded Sakae Ringyo ESL stem.
02-01-24, 09:37 AM
Replies: 92
Views: 4,207
Posted By JohnDThompson

Here's another one. This one's a track jersey --...

Here's another one. This one's a track jersey -- no pockets -- and so doesn't get worn much....
02-01-24, 09:17 AM
Replies: 40
Views: 1,396
Posted By JohnDThompson

QUOTE=steelbikeguy;23144552]Hard to argue with...

QUOTE=steelbikeguy;23144552]Hard to argue with that!
I was going to mention that even my old mid-70's Cyclo-Pedia catalog used drawings by Rebour that showed the lever on the right....
...
01-30-24, 02:54 PM
Replies: 55
Views: 2,009
Posted By JohnDThompson

No, the 957 and 959 frames were identical; only...

No, the 957 and 959 frames were identical; only the installed component group distinguished them.
01-30-24, 10:58 AM
Replies: 31
Views: 1,091
Posted By JohnDThompson

You can get a double-ended (TA 23mm/Stronglight...

You can get a double-ended (TA 23mm/Stronglight 23.35mm) extractor tool on eBay:
https://i.ebayimg.com/images/g/vjMAAOSwCxVhg-Lk/s-l1600.jpg...
Forum: Road Cycling
01-29-24, 05:56 PM
Replies: 9
Views: 383
Posted By JohnDThompson

There's no downside to using a...

There's no downside to using a longer-than-strictly-necessary derailleur cage beyond a couple grams additional mass. So if you have to guess, I recommend guessing on the longer side of your choices.
01-27-24, 08:44 PM
Replies: 92
Views: 4,207
Posted By JohnDThompson

Front pockets: ...

Front pockets:
\https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/369x410/01_68238d4e96692b2a3c55bd63244b93ccce09d26d.jpg...
01-27-24, 02:10 PM
Replies: 21
Views: 790
Posted By JohnDThompson

I seem to remember using electronic circuit board...

I seem to remember using electronic circuit board stand-offs for that in the past, probably with a little modification....
01-27-24, 02:06 PM
Replies: 8,727
Views: 1,083,584
Posted By JohnDThompson

Got my Mavic #652 BB chamfering tool back from ...

Got my Mavic #652 BB chamfering tool back from no67el. I'm always a little apprehensive when I lend out tools through the mail, but everything was fine! :thumb:...
01-27-24, 01:56 PM
Replies: 92
Views: 4,207
Posted By JohnDThompson

https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulletin/874x1080/zeus_jersey_e2b511b28578e57c298353608abebb594abaf3b8.jpg
01-26-24, 01:15 PM
Replies: 65
Views: 2,288
Posted By JohnDThompson

But that's no longer the case. Most other...

But that's no longer the case. Most other developed nations, even China, fer cripes sake, have high speed rail systems that far exceed what automobiles are capable of doing.


Shouldn't be a...
01-26-24, 12:16 PM
Replies: 35
Views: 962
Posted By JohnDThompson

That's one of the "not recommended" gear...

That's one of the "not recommended" gear combinations, due to the angle it imposes on the chain causing greater wear. The other "not recommended" combination is the large sprocket/large chainring...
01-25-24, 01:39 PM
Replies: 17
Views: 3,479
Posted By JohnDThompson

You have a couple options. You could ream the...

You have a couple options. You could ream the shell and cut Italian thread to use Italian thread cups. You could use a Phil cartridge bottom bracket with Swiss thread mounting rings. Or, you could...
01-25-24, 01:19 PM
Replies: 22
Views: 708
Posted By JohnDThompson

I always stretch the tires before gluing them....

I always stretch the tires before gluing them. Getting a new tire on the rim to stretch can be a challenge; I use zip-ties to hold the tire in place as I wrestle up the final section. Once it's on...
01-25-24, 12:53 PM
Replies: 65
Views: 2,288
Posted By JohnDThompson

Cars are the preferred transportation in the USA...

Cars are the preferred transportation in the USA because most of our cities have been designed to accommodate cars, and any other transportation options are secondary to that. Free, on-street parking...
01-23-24, 09:20 PM
Replies: 55
Views: 2,009
Posted By JohnDThompson

Looks like a 950 frame. Those Trek-branded...

Looks like a 950 frame. Those Trek-branded Cinelli bottom bracket shells were only in production for a few months, before the Signicast Trek shells with cast-in cable guides under the shell became...
01-23-24, 09:07 PM
Replies: 26
Views: 938
Posted By JohnDThompson

The base tape is a layer of cloth between the...

The base tape is a layer of cloth between the stitching that closes the casing and the rim. The casing is the material that is stitched around the inner tube, and to which the tread is applied. The...
Showing results 1 to 50 of 1000
 


 
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