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Search: Posts Made By: JohnDThompson
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Forum: Road Cycling
05-17-22, 05:41 PM
Replies: 3
Views: 70
Posted By JohnDThompson

Yes, Victory uses 116mm BCD; 35T is the smallest...

Yes, Victory uses 116mm BCD; 35T is the smallest that will mount on that bolt circle.



The Victory rear derailleur came in either a short cage or a long cage version. The long cage version...
05-16-22, 07:05 AM
Replies: 26,091
Views: 3,620,820
Posted By JohnDThompson

I've done Lake Pepin several times; it's a good...

I've done Lake Pepin several times; it's a good time. The last time I went was before COVID. I hope to get back there some day.
05-16-22, 06:49 AM
Replies: 32
Views: 569
Posted By JohnDThompson

Gloves can help. What kind of handlebar do you...

Gloves can help. What kind of handlebar do you use? One with multiple hand positions (i.e. a "drop" bar or a flat bar with extensions) allows you to change the pressure points on your hands while you...
05-15-22, 06:32 PM
Replies: 8
Views: 145
Posted By JohnDThompson

Victory cones are the same as Triomphe and Gran...

Victory cones are the same as Triomphe and Gran Sport. Yes, the fronts use 3/16" balls and the rears use 1/4" balls. Be aware that Record front cones do not interchange, as they are ground for 7/32"...
05-15-22, 06:56 AM
Replies: 3
Views: 151
Posted By JohnDThompson

They're pretty much interchangeable for 68mm...

They're pretty much interchangeable for 68mm bottom bracket shells. With a Stronglight or TA spindle in a 70mm wide shell and Campagnolo cups, the adjustable cup will likely bottom out with no...
05-15-22, 06:51 AM
Replies: 14
Views: 286
Posted By JohnDThompson

The Hozan C-203 only works on a ring with an even...

The Hozan C-203 only works on a ring with an even number of notches. The smaller radius end of the C-205 will work, as will an adjustable hook spanner.
05-15-22, 06:41 AM
Replies: 5
Views: 135
Posted By JohnDThompson

I measure about 47-67mm on my Zeus 2000 calipers.

I measure about 47-67mm on my Zeus 2000 calipers.
05-15-22, 06:29 AM
Replies: 15
Views: 323
Posted By JohnDThompson

You want the tape wide enough to fully cover the...

You want the tape wide enough to fully cover the spoke holes, but not so wide that it interferes with mounting the tires.
05-14-22, 08:49 PM
Replies: 8
Views: 346
Posted By JohnDThompson

That's to ensure consistent chainring clearance...

That's to ensure consistent chainring clearance on the drive side. When you install the cartridge, you thread it in until the flange on the cartridge seats against the frame bottom bracket shell....
05-14-22, 07:17 PM
Replies: 15
Views: 2,257
Posted By JohnDThompson

To be fair, the post you quoted above dates back...

To be fair, the post you quoted above dates back to July 2013.
05-14-22, 06:40 AM
Replies: 128
Views: 10,633
Posted By JohnDThompson

No, actually, it's quick and easy. The remover...

No, actually, it's quick and easy. The remover tool just bends the legs of the staple up, and a little wiggle works it free. With sutures, you have to clip the suture and pull it out, and make sure...
05-13-22, 11:29 AM
Replies: 17
Views: 337
Posted By JohnDThompson

If the cups are still serviceable, you may be...

If the cups are still serviceable, you may be able to use a standard square taper spindle. That's how I got a crank for my daughter's Raleigh 3-speed frame.
05-13-22, 11:21 AM
Replies: 71
Views: 1,112
Posted By JohnDThompson

I used to run Michelin 700C x 18mm slicks and...

I used to run Michelin 700C x 18mm slicks and never had a problem. I haven't seen any new production that narrow in years, though, at least not clinchers. Pretty sure tubular track tires are still...
05-13-22, 06:05 AM
Replies: 12
Views: 337
Posted By JohnDThompson

You're thinking of Greg Softley (aka...

You're thinking of Greg Softley (aka "cyclomondo").

There's also Gus Salmon, based in Florida: https://www.facebook.com/gsalmondecals/
05-12-22, 05:38 AM
Replies: 34
Views: 693
Posted By JohnDThompson

I run 165mm cranks on my fixed gear bikes. They...

I run 165mm cranks on my fixed gear bikes. They provide a little more clearance when cornering and allow a faster cadence on downhills without blowing out my knees. My wife has joint issues, and uses...
05-11-22, 06:06 AM
Replies: 8
Views: 310
Posted By JohnDThompson

Yes. The differences were cosmetic.

Yes. The differences were cosmetic.
05-09-22, 03:05 PM
Replies: 6
Views: 201
Posted By JohnDThompson

That's a typical sign of a bottom bracket shell...

That's a typical sign of a bottom bracket shell that needs facing. The faces of the bottom bracket shell must be perpendicular to the axis of the bottom bracket spindle. It's not hard to fix, but the...
05-09-22, 05:50 AM
Replies: 12
Views: 272
Posted By JohnDThompson

Probably not. You'll likely need a longer chain...

Probably not. You'll likely need a longer chain and possibly a longer cage rear derailleur.
05-08-22, 07:55 PM
Replies: 14,665
Views: 3,509,404
Posted By JohnDThompson

Duopar "Eco." Steel instead of titanium, but...

Duopar "Eco." Steel instead of titanium, but functionally identical. The parallelogram is the same as the "Challenger" and "Success" units, but includes the second articulation and longer cage to...
05-08-22, 07:44 PM
Replies: 50
Views: 1,303
Posted By JohnDThompson

The primary concern with NDS offset is chainstay...

The primary concern with NDS offset is chainstay clearance. Unless you have joint problems, further offset is unlikely to be an issue.
05-08-22, 07:41 PM
Replies: 90
Views: 1,675
Posted By JohnDThompson

No. Proper cold vulcanization creates permanent...

No. Proper cold vulcanization creates permanent bonds between the patch and the tube.
05-07-22, 05:34 PM
Replies: 7
Views: 203
Posted By JohnDThompson

Coaster brake hubs always have more drag than...

Coaster brake hubs always have more drag than non-coaster hubs. But unloaded spin-down does not really demonstrate how the hub will perform under load.
05-07-22, 05:20 PM
Replies: 52
Views: 1,667
Posted By JohnDThompson

Not an issue. When I worked at Trek, I wore foam...

Not an issue. When I worked at Trek, I wore foam ear plugs 8hrs/day, 5 days/week for years.
05-07-22, 05:18 PM
Replies: 52
Views: 1,667
Posted By JohnDThompson

I'm sure the OP meant carbon MONOXIDE, but in any...

I'm sure the OP meant carbon MONOXIDE, but in any case, CO2 detectors do exist and are used in healthcare to measure end tidal CO2 concentration to assess ET tube placement, among other things.
05-05-22, 01:35 PM
Replies: 31
Views: 857
Posted By JohnDThompson

I wrap them around the handles of garden tools to...

I wrap them around the handles of garden tools to provide some padding.
05-05-22, 01:32 PM
Replies: 31
Views: 857
Posted By JohnDThompson

The charity shop where I volunteer is entirely...

The charity shop where I volunteer is entirely supported by donations, so we patch punctures whenever possible. The only times tubes don't get patched is when they suffer unpatchable damage, e.g. a...
05-05-22, 08:13 AM
Replies: 3
Views: 219
Posted By JohnDThompson

I would contact the manufacturer for their...

I would contact the manufacturer for their suggestion of epoxy that would be compatible with whatever resin was used in their carbon fiber material.
05-05-22, 08:07 AM
Replies: 90
Views: 1,675
Posted By JohnDThompson

A good quality patch (I prefer Rema, but there...

A good quality patch (I prefer Rema, but there are others) properly applied can last the life of the tube. A compelling reason to replace a tube would be a blow-out too large to patch, or a leak in...
05-05-22, 07:57 AM
Replies: 4
Views: 259
Posted By JohnDThompson

29er is a marketing name for some ETRTO/ISO 622mm...

29er is a marketing name for some ETRTO/ISO 622mm (aka "700C") rims. In principle, any 622mm bead seat tire will mount on the rim. Narrow tires are not necessarily faster than wide tires; rolling...
05-04-22, 07:17 AM
Replies: 3
Views: 184
Posted By JohnDThompson

The stamps wear out eventually, and could be...

The stamps wear out eventually, and could be replaced with slightly different size/shape. The "floating W" is likely the personal stamp of whoever brazed the frame. Mine was "Z."
05-04-22, 06:53 AM
Replies: 12
Views: 479
Posted By JohnDThompson

Looks like a Victory or Triomphe hub, laced three...

Looks like a Victory or Triomphe hub, laced three cross. Should be strong enough for anything except perhaps gonzo off-road riding.
05-03-22, 08:39 AM
Replies: 70
Views: 1,526
Posted By JohnDThompson

I have significant arthritis in my hands and...

I have significant arthritis in my hands and neck, and have suffered grade III A-C separations in both my shoulders. I pre-medicate with ibuprofen before I ride, and that keeps me tolerably pain-free...
05-02-22, 06:25 AM
Replies: 66
Views: 1,844
Posted By JohnDThompson

I believe that this is the official Campagnolo...

I believe that this is the official Campagnolo "Cambio Corsa" dropout tool:
05-02-22, 06:05 AM
Replies: 50
Views: 1,488
Posted By JohnDThompson

Adding more sprockets to the cluster doesn't...

Adding more sprockets to the cluster doesn't necessarily broaden the gear range; that is determined by the tooth count of the sprockets. 5-speed freewheels could be had with up to 38T, not that far...
05-01-22, 07:00 PM
Replies: 42
Views: 948
Posted By JohnDThompson

Not "scrap." Just put a second quick-link in to...

Not "scrap." Just put a second quick-link in to replace the compromised link.
Forum: Road Cycling
04-27-22, 07:39 PM
Replies: 27
Views: 675
Posted By JohnDThompson

BITD, most high-end dropouts were forged from...

BITD, most high-end dropouts were forged from relatively mild steel that could be realigned multiple times without problems. When investment cast dropouts became fashionable, they were less tolerant...
04-27-22, 07:11 PM
Replies: 57
Views: 1,671
Posted By JohnDThompson

Fresh paint (i.e. less than several MONTHS old)...

Fresh paint (i.e. less than several MONTHS old) is easily damaged by clamps, even with padding. I've seen many a frame with cloth texture pressed into the paint from clamping on a rag wrapped around...
04-27-22, 06:56 PM
Replies: 59
Views: 1,389
Posted By JohnDThompson

If your bike has indexed shifting, as do most...

If your bike has indexed shifting, as do most bikes sold inthe last 30 years or so, Flintstone alignment with a bench vise and a stool isn't likely to be precise enough. There are special tools to...
04-27-22, 06:45 PM
Replies: 82
Views: 1,612
Posted By JohnDThompson

I used to run 18mm tires on my road bike BITD....

I used to run 18mm tires on my road bike BITD. The narrowest I currently run are 21mm tubulars. Once they wear out, those wheels are geting 27mm tubulars.
04-17-22, 02:32 PM
Replies: 12
Views: 285
Posted By JohnDThompson

They weren't "higher" quality than SL or SP; just...

They weren't "higher" quality than SL or SP; just thinner guage. They're all the same steel alloy, all seamless tubes, and except for "Record," all butted tube sets. The different gauges were just...
04-17-22, 02:16 PM
Replies: 17
Views: 501
Posted By JohnDThompson

I stretch all my tubulars on rims before mounting...

I stretch all my tubulars on rims before mounting them. Some can be quite a struggle; I've found zip-ties to be helpful in holding the tire in place while wrestling rhe last bit onto the rim. Once...
04-17-22, 01:21 PM
Replies: 19
Views: 462
Posted By JohnDThompson

That probably won't help the OP, as the bike in...

That probably won't help the OP, as the bike in question is described as "single speed" and most likely will use a 1/8" wide chain.

N.B. a single-speed drive train can use 1/8" chain even if one...
Forum: Road Cycling
04-14-22, 07:07 PM
Replies: 15
Views: 957
Posted By JohnDThompson

Tange "Champion" tube sets were all the same...

Tange "Champion" tube sets were all the same chrome-moly alloy steel; the numbers indicated different wall thickness, the larger the number, the thicker the wall. "Prestige" tubes were heat-treated...
04-12-22, 05:50 AM
Replies: 30
Views: 684
Posted By JohnDThompson

Some early Ofmega/Avocet cranks had a slightly...

Some early Ofmega/Avocet cranks had a slightly narrower taper than is typical, but tthe vast majority of what was imported into North America was standard taper.
04-11-22, 09:26 AM
Replies: 30
Views: 684
Posted By JohnDThompson

No, they contracted with others to make parts...

No, they contracted with others to make parts under the Avocet name, mostly rebranded existing models. The Avocet cycle computer is the only component designed in-house AFAIK.



Ofmega made the...
04-11-22, 08:56 AM
Replies: 26
Views: 539
Posted By JohnDThompson

I was looking at the Google Doc linked above.

I was looking at the Google Doc linked above.
04-11-22, 08:03 AM
Replies: 26
Views: 539
Posted By JohnDThompson

Green Bay to La Crosse? Why not the other...

Green Bay to La Crosse? Why not the other direction? At least you'd have the prevailing wind more behind you.
04-09-22, 05:33 PM
Replies: 10
Views: 254
Posted By JohnDThompson

Shell width is an unreliable indicator of thread...

Shell width is an unreliable indicator of thread spec. More than a few bike-boom era Japanese frames came with 70mm, English thread shells. And older Italian track bikes came with 65mm, Italian...
04-09-22, 05:04 PM
Replies: 39
Views: 1,073
Posted By JohnDThompson

You decide which issues you're willing to live...

You decide which issues you're willing to live with, and make your choice on that basis.
04-09-22, 05:02 PM
Replies: 29
Views: 594
Posted By JohnDThompson

Ofmega made Bianchi-branded cranks, so perhaps...

Ofmega made Bianchi-branded cranks, so perhaps they were Ofmega rings?

One problem with running a 41T, 144mm BCD ring is that the chain side plates can hit the spider arms as you're pedaling,...
Showing results 1 to 50 of 1000
 


 
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