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Search: Posts Made By: JohnDThompson
Showing results 1 to 50 of 1000
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04-21-24, 10:00 AM
Replies: 48
Views: 25,464
Posted By JohnDThompson

"Newbie." Cut him some slack.

"Newbie."
Cut him some slack.
04-19-24, 08:25 PM
Replies: 22
Views: 615
Posted By JohnDThompson

Actually, with the Dia-Compe G caliper, it's even...

Actually, with the Dia-Compe G caliper, it's even easier than that. There are flats on the pivot bolt that can accept a single thin wrench to center the caliper over the rim:...
04-18-24, 06:19 PM
Replies: 21
Views: 411
Posted By JohnDThompson

While that may be true, there are some grip-shift...

While that may be true, there are some grip-shift designs that make the process sufficiently tedious that it hardly seems worth the bother. My preferred fix is to replace the grip shifter with a...
04-16-24, 03:53 PM
Replies: 46
Views: 950
Posted By JohnDThompson

100/60 is considered a normal blood pressure....

100/60 is considered a normal blood pressure. Were you feeling symptomatic in any way (dizzy, malaise, nausea, etc.)? What was your pulse? Low blood pressure and high pulse rate after exertion could...
04-12-24, 07:53 AM
Replies: 8
Views: 369
Posted By JohnDThompson

Seriously? The MF-62nn (Shimano 600) and MF-72nn...

Seriously? The MF-62nn (Shimano 600) and MF-72nn (Dura-Ace) freewheels were the first to get the Uniglide twisted tooth treatment, and IMO are among the best best freewheels ever put on the market.
...
Forum: Road Cycling
04-11-24, 11:05 AM
Replies: 43
Views: 1,587
Posted By JohnDThompson

Yes. I was Trek's warranty claim inspector in...

Yes. I was Trek's warranty claim inspector in Waterloo in the mid-80s; eduskator's comment is spot-on. If you raced on the frame, that would also exclude warranty coverage. But warranty claims are...
04-10-24, 07:45 PM
Replies: 39
Views: 1,599
Posted By JohnDThompson

True, but as more and more sprockets were piled...

True, but as more and more sprockets were piled onto the rear cluster, and longer housing runs used to mount shifters on handlebars became more common, indexed shifting performance became...
04-07-24, 06:54 AM
Replies: 11
Views: 520
Posted By JohnDThompson

Maybe "guidonnet" levers? ...

Maybe "guidonnet" levers?
https://cimg2.ibsrv.net/gimg/bikeforums.net-vbulletin/759x537/bars_854ed7adf1d11a947170ee27851f30ef2302fd0e.jpg
04-06-24, 06:06 PM
Replies: 182
Views: 6,506
Posted By JohnDThompson

Actually, you need a frame and fork designed to...

Actually, you need a frame and fork designed to handle disc brake loads, and hubs capable of mounting a brake rotor.




No. Machined brake tracks are a relatively modern feature. Unmachined...
04-01-24, 11:28 AM
03-31-24, 09:01 PM
Replies: 27,968
Views: 4,528,026
Posted By JohnDThompson

Not a "loaded tour," but I've done the Lake Pepin...

Not a "loaded tour," but I've done the Lake Pepin 3-Speed tour several times on my 1973 Raleigh Superbe. I usually set up camp in Wabesha, drive to Red Wing, ride from Red Wing to Wabesha, spend the...
03-31-24, 09:00 AM
Replies: 26
Views: 858
Posted By JohnDThompson

I see no point in doing so. It would result in...

I see no point in doing so. It would result in the same problem as threading a track sprocket directly onto a freewheel hub: it will unthread itself if/when you resist the pedals to control speed.
03-31-24, 08:43 AM
Replies: 102
Views: 3,684
Posted By JohnDThompson

+1 this. And even if you are racing, UCI...

+1 this.

And even if you are racing, UCI imposes a minimum weight for bikes used in their sanctioned events.
03-28-24, 05:46 PM
Replies: 5
Views: 384
Posted By JohnDThompson

I like the MKS "Fit α Sprint" straps. They're the...

I like the MKS "Fit α Sprint" straps. They're the closest thing to the old Alfredo Binda straps I've found. The strap is leather, with a plastic mesh laminated in to reduce stretching under load...
03-28-24, 09:43 AM
Replies: 13
Views: 352
Posted By JohnDThompson

FWIW, Trek used a lot of Helicomatic hubs back in...

FWIW, Trek used a lot of Helicomatic hubs back in the 80s, and we installed Sedissport chains on them. Sachs bought out Sedis many years ago; one of their 7 or 8-speed chains ought to work on the...
03-27-24, 12:17 PM
Replies: 2,622
Views: 673,256
Posted By JohnDThompson

Looks good; could be original and I just don't...

Looks good; could be original and I just don't recall that crown being used.
03-26-24, 06:26 AM
Replies: 26
Views: 757
Posted By JohnDThompson

Often, removing the mounting bolt and riding...

Often, removing the mounting bolt and riding around the block a few times is enough to work the arm loose. Don't go too far from home/shop, as once it gets loose you'll want to stop riding and walk...
03-22-24, 09:21 AM
03-22-24, 09:11 AM
Replies: 13
Views: 675
Posted By JohnDThompson

IME, skewer springs are generic and completely...

IME, skewer springs are generic and completely interchangeable between hub brands.
03-22-24, 09:03 AM
Replies: 41
Views: 1,560
Posted By JohnDThompson

From the original FB post: ...

From the original FB post:
https://cimg8.ibsrv.net/gimg/bikeforums.net-vbulletin/1076x684/hoods_e5abd2d51a8f250064712979da3c29352766a7e6.jpg...
03-22-24, 08:49 AM
Replies: 83,260
Views: 14,136,324
Posted By JohnDThompson

FWIW, two of my friends worked for Masi...

FWIW, two of my friends worked for Masi California back in the mid-80s (Dave Tesch and Joe Starck), and they pronounced Masi as "Mazi."
03-21-24, 12:25 PM
Replies: 41
Views: 1,560
Posted By JohnDThompson

Repo lever hoods source

This just popped up on the Facebook "Steel is Real" group. Looks like a good variety of models. No personal experience with them:
...
03-21-24, 11:51 AM
Replies: 70
Views: 6,918
Posted By JohnDThompson

Lots of cool old city bikes still being used in...

Lots of cool old city bikes still being used in Italy. I spotted these in Cremona a few years back:...
03-21-24, 11:33 AM
Replies: 83,260
Views: 14,136,324
Posted By JohnDThompson

They almost got it right. The final Cyrillic...

They almost got it right. The final Cyrillic character in the name should be the "backwards N" character, which the forum software doesn't allow.

Maybe it can be done as an image:...
03-20-24, 07:41 PM
Replies: 18
Views: 615
Posted By JohnDThompson

H Lloyd Cycles in England also has a good...

H Lloyd Cycles in England also has a good selection:
https://hlloydcycles.com/en-us/collections
03-20-24, 06:16 PM
Replies: 82
Views: 3,513
Posted By JohnDThompson

Campagnolo Triomphe is one of my favorites for a...

Campagnolo Triomphe is one of my favorites for a touring bike. They work equally well with slotted cleat bike shoes and shoe-soled street shoes....
03-20-24, 09:23 AM
Replies: 82
Views: 3,513
Posted By JohnDThompson

Zeus 2000: titanium spindle, sealed bearings, and...

Zeus 2000: titanium spindle, sealed bearings, and titanium cage that is more durable than the aluminum cage used on many other pedals (including Campagnolo Super Record and Superleggero), and only...
03-20-24, 07:39 AM
Replies: 39
Views: 1,104
Posted By JohnDThompson

Looks like "Tourney," which, IIRC was made by...

Looks like "Tourney," which, IIRC was made by Takagi, later acquired by Shimano.
03-20-24, 07:16 AM
Replies: 32
Views: 1,035
Posted By JohnDThompson

I assume that when you write "races," you're...

I assume that when you write "races," you're referring to the cups. The reason the cones wear faster than the cup is because the bearing track on the cones is shorter than that of the cups, which...
03-20-24, 07:05 AM
Replies: 50
Views: 1,597
Posted By JohnDThompson

Keep in mind that unloaded performance is not a...

Keep in mind that unloaded performance is not a good predictor of loaded performance.
03-18-24, 07:51 AM
Replies: 41
Views: 1,410
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: 24
Views: 977
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: 542
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: 445
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: 3,930
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: 6,177
Posted By JohnDThompson

Their race; their rules.

Their race; their rules.
03-10-24, 09:36 AM
Replies: 21,731
Views: 3,069,125
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: 377
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: 3,245
Views: 415,879
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: 968
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: 687
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: 57
Views: 2,036
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: 1,285
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: 123
Views: 4,140
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: 566
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: 1,422
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: 778
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: 1,427
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: 1,700
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: 474
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....
Showing results 1 to 50 of 1000
 


 
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