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Search: Posts Made By: dddd
Showing results 1 to 50 of 1000
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Forum: Classic & Vintage
04-09-24, 01:21 PM
Replies: 46
Views: 1,256
Posted By dddd

The high bottom bracket was not universal on CX...

The high bottom bracket was not universal on CX bikes, was apparently there to provide for pedaling briefly with the clips pointing down, not for log-hopping.

Newer designs of course make no...
Forum: Classic & Vintage
04-06-24, 09:02 AM
Replies: 80
Views: 8,859
Posted By dddd

On my Klein Performance with it's 126mm spacing,...

On my Klein Performance with it's 126mm spacing, I used the original wheelset and put a 10s Shimano 12-30t cassette on, retained by a long-threaded 11t lockring that nested into the recess of the 12t...
Forum: Classic & Vintage
04-06-24, 08:26 AM
Replies: 11
Views: 484
Posted By dddd

I've gone over aged anodized parts like stems,...

I've gone over aged anodized parts like stems, even "satin"-finished parts, using polishing compound and with excellent results, but it took a lot of polishing effort (pressure and repetition).

I...
Forum: Classic & Vintage
04-04-24, 09:26 AM
Replies: 65
Views: 2,898
Posted By dddd

Yes, Ofmega and with Universal brakes, plus the...

Yes, Ofmega and with Universal brakes, plus the Campag gearshift ensemble (sort of as on my Bianchi Nuovo Racing circa ~1981).

I'd guessed the production numbers were higher, but perhaps the...
Forum: Classic & Vintage
03-30-24, 07:10 PM
Replies: 25
Views: 764
Posted By dddd

That one would be fun to actually measure. ...

That one would be fun to actually measure.

There are at least three "steps" outward starting with the step on the smallest cog itself, then with what looks like two more larger steps on the body...
Forum: Classic & Vintage
03-30-24, 12:24 AM
Replies: 59
Views: 2,738
Posted By dddd

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulletin/1024x768/12176486563_02c1cd6796_b_e5adb20c003f1ef4afb690a51af03c609e050e55.jpg...
Forum: Classic & Vintage
03-29-24, 10:32 PM
Replies: 65
Views: 2,898
Posted By dddd

Racers as well as racer wanna-bees with money...

Racers as well as racer wanna-bees with money insisted on Campagnolo well into the 80's, and Campag-equipped Japanese bikes like the top-end Lotus I came across were made in small numbers.

It's...
Forum: Classic & Vintage
03-29-24, 10:03 PM
Replies: 25
Views: 764
Posted By dddd

I can tell you that their 5s hubs kept the axle...

I can tell you that their 5s hubs kept the axle extension short enough to prevent use of even an Ultra-6 freewheel, and that some slightly longer examples were probably intended for Ultra-6 because...
Forum: Classic & Vintage
03-29-24, 08:39 PM
Replies: 25
Views: 764
Posted By dddd

The needed clearance depends further on the...

The needed clearance depends further on the diameter of the smallest cog, as well as the width of the chain.

In the normal course of spacing rear axles, I generally find that a minimum of 3 to...
Forum: Classic & Vintage
03-28-24, 04:52 PM
Replies: 13
Views: 329
Posted By dddd

^^This kind of jibes with my own experience...

^^This kind of jibes with my own experience trying many (including 9s) chains on my Peugeot PH501.

The Sedisport chain is the correct one and I found none that worked quite as well.

The...
Forum: Classic & Vintage
03-28-24, 12:36 AM
Replies: 15
Views: 562
Posted By dddd

Are you referring to the black "collar" on the...

Are you referring to the black "collar" on the pedals, the pictured bottom bracket or perhaps the "Nico and Shimano hubs" that I quote the OP as having initially mentioned?

The black collar on the...
Forum: Classic & Vintage
03-24-24, 07:28 PM
Replies: 15
Views: 562
Posted By dddd

The collars came into being mainly because of the...

The collars came into being mainly because of the oversized frame tubing that started being used for seat tubes, in conjunction with triple chainrings.

If the crankarm settles inward far enough,...
Forum: Classic & Vintage
03-21-24, 04:52 PM
Replies: 41
Views: 1,488
Posted By dddd

It is quite the jolt seeing all of the needed...

It is quite the jolt seeing all of the needed hard-to-find hoods suddenly available at reasonable prices!

I've been needing the AX hoods for almost a decade now!

This should increase the market...
Forum: Classic & Vintage
03-16-24, 09:07 PM
Replies: 74
Views: 2,545
Posted By dddd

The E and LE that I acquired do have similar...

The E and LE that I acquired do have similar steep angles, though the LE is a 60cm and the fancy-lug E is a 56cm size. Both are from around 1974 as I recall.
Forum: Classic & Vintage
03-15-24, 08:42 PM
Replies: 74
Views: 2,545
Posted By dddd

I was perhaps confusing your post with BluePX10's...

I was perhaps confusing your post with BluePX10's post, but your 55cm top tube actually exists together with the steep angles.
Not too surprising as the steeper seat tube extends the front-center...
Forum: Classic & Vintage
03-15-24, 04:28 PM
Replies: 74
Views: 2,545
Posted By dddd

The LE bikes had 75+ degree frame angles in all...

The LE bikes had 75+ degree frame angles in all but perhaps the smallest frame size(s) offered.
The 73.5-degree angles would be from the late-70's period following the mid-70's Thevenet/LE period. ...
Forum: Classic & Vintage
03-11-24, 11:53 PM
Replies: 74
Views: 2,545
Posted By dddd

Thanks for the higher-res photo. What is the red...

Thanks for the higher-res photo. What is the red decal on the top tube near the head tube?
Forum: Classic & Vintage
03-11-24, 11:48 PM
Replies: 74
Views: 2,545
Posted By dddd

Your rear derailer looks a bit too vertical for...

Your rear derailer looks a bit too vertical for being in the big ring, but perhaps your chain length is sized for possible later use of a 28t freewheel?

You're right about what I had said about...
Forum: Classic & Vintage
03-11-24, 03:57 PM
Replies: 74
Views: 2,545
Posted By dddd

These particular mid-70's Peugeot's seem to be a...

These particular mid-70's Peugeot's seem to be a good example of this unusual approach to geometry.
Normally, the head tube angle gets kicked out, and seat tube steepened, on frames smaller than...
Forum: Classic & Vintage
03-11-24, 12:41 AM
Replies: 74
Views: 2,545
Posted By dddd

Yes, I have two of the PX10's from the 1973-1975...

Yes, I have two of the PX10's from the 1973-1975 era, a 56cm and a 60cm. Both have similar measured angles, but different lug styles. The 56cm is a PX10E and the 60cm is a PX10LE.
Both are pictured...
Forum: Classic & Vintage
03-10-24, 11:14 PM
Replies: 20
Views: 489
Posted By dddd

Really clear to see what's going on gap-wise with...

Really clear to see what's going on gap-wise with your four photos!
:thumb:

I always liked how the dual-sprung rear derailers helped maintain a more consistent chain gap, all else seeming equal.
Forum: Classic & Vintage
03-10-24, 10:54 PM
Replies: 74
Views: 2,545
Posted By dddd

I considered the 58.5cm to be much longer than...

I considered the 58.5cm to be much longer than the 56 (oops, it's actually 57cm) of my own 56cm PX10 from this era.

I'm thinking that these "team replica" kinds of geometry was provided with the...
Forum: Classic & Vintage
03-10-24, 04:16 PM
Replies: 74
Views: 2,545
Posted By dddd

The issue with longer-than-normal (for production...

The issue with longer-than-normal (for production frames) top tubes can be because of the need for toe clearance, but only on smaller frame sizes.

Since a 75+ degree head tube angle combined with...
Forum: Classic & Vintage
03-07-24, 10:28 AM
Replies: 13
Views: 454
Posted By dddd

For what it is, the chart's ok I guess, just that...

For what it is, the chart's ok I guess, just that it seems like it perhaps validates optimistic assumptions of how much torque can really be applied, leading to the dreaded stripped-out socket heads....
Forum: Classic & Vintage
03-07-24, 10:13 AM
Replies: 21
Views: 1,162
Posted By dddd

Nice deal! Is it possible that merely...

Nice deal!

Is it possible that merely connecting the stiff cable housing and tightening the B-tension will restore the proper angle of the rear derailer?

Or maybe the B-screw is bent off...
Forum: Classic & Vintage
03-06-24, 07:30 PM
Replies: 32
Views: 2,555
Posted By dddd

I noticed from the photos that these bike's...

I noticed from the photos that these bike's cables are wound counter-clockwise, like Campagnolo, unlike all of the rest of the world's cables.

It always throws me when working on bikes with such...
Forum: Classic & Vintage
03-06-24, 07:08 PM
Replies: 13
Views: 454
Posted By dddd

Be careful with that colored conversion chart, it...

Be careful with that colored conversion chart, it has a mistake or two not to mention that you would strip a 1/8" socket with a 3mm hex key and the 1/8" key wouldn't even fit in a 3mm socket!
Forum: Classic & Vintage
03-06-24, 04:40 PM
Replies: 13
Views: 3,089
Posted By dddd

If there is even a half inch of clearance up to...

If there is even a half inch of clearance up to the bottom of the fork crown, then a 559mm wheel and tire might work ok, possibly needing a shorter-reach caliper however.

This assuming that the...
Forum: Classic & Vintage
03-06-24, 04:15 PM
Replies: 19
Views: 811
Posted By dddd

Very cool find(!), nice chrome, nice color and I...

Very cool find(!), nice chrome, nice color and I can't wait to see what the other bike is.
Forum: Classic & Vintage
03-06-24, 03:10 AM
Replies: 20
Views: 665
Posted By dddd

I've got the same AD-SLE bike in a 23" size, same...

I've got the same AD-SLE bike in a 23" size, same color.

My bike's Huret components date from late 1977 (49th and 50th weeks), and my brake levers are dated 1/77.

My bike's serial # is...
Forum: Classic & Vintage
03-05-24, 09:38 PM
Replies: 37
Views: 1,557
Posted By dddd

It does appear that he squats down for the shift,...

It does appear that he squats down for the shift, but he perhaps does it so (or too) quick/abrupt that one can't be sure to what if any degree that his veering into Claude were perhaps intentional...
Forum: Classic & Vintage
03-05-24, 09:16 PM
Replies: 25
Views: 1,633
Posted By dddd

Great find. I kind of worry about coming...

Great find.

I kind of worry about coming across a collection like this one, becoming the steward of yet more bikes..
Forum: Classic & Vintage
03-03-24, 06:13 PM
Replies: 7
Views: 275
Posted By dddd

As far as the cone self-tightening, you're right...

As far as the cone self-tightening, you're right that it doesn't matter, because no precession is involved.

Precession of threaded parts occurs when one threaded part rolls around inside of...
Forum: Classic & Vintage
03-03-24, 05:03 PM
Replies: 38
Views: 1,419
Posted By dddd

I'm recalling Masi and the term "fenestrated"...

I'm recalling Masi and the term "fenestrated" applied to chainstays with such lined openings, this from decades-old discussions on the CR List.

Definitely a higher-effort build.
Forum: Classic & Vintage
03-03-24, 04:45 PM
Replies: 37
Views: 1,557
Posted By dddd

I never thought of this idea, and as such I can't...

I never thought of this idea, and as such I can't remember ever trying to pull it off for whatever circumstance that presented itself.

What I learned to was to shift in sync with my dropping...
Forum: Classic & Vintage
03-02-24, 04:03 PM
Replies: 7
Views: 275
Posted By dddd

Heat will expand the hubshell, perhaps enough for...

Heat will expand the hubshell, perhaps enough for the cup to fall out.

Then just a matter of sourcing another cup from a discarded wheel perhaps.

I wouldn't expect a built wheel to run...
Forum: Classic & Vintage
03-02-24, 12:39 PM
Replies: 9
Views: 430
Posted By dddd

Maybe this one? It fits the very first splined...

Maybe this one? It fits the very first splined Shimano freewheels, and maybe just because it's early, it's not hollow like the similar one pictured above far right.
...
Forum: Classic & Vintage
03-02-24, 12:00 PM
Replies: 9
Views: 430
Posted By dddd

One thing about replacing (or not replacing)...

One thing about replacing (or not replacing) lower-tier cranksets;
I have come to really like cranksets having a pants leg protector ring. I sometimes go to some length getting such rings to run...
Forum: Classic & Vintage
03-02-24, 01:55 AM
Replies: 9
Views: 430
Posted By dddd

Are you needing to remove the cups in order to...

Are you needing to remove the cups in order to replace them with normal parts?

If so, you could use a piece of 1/4" steel flat stock to turn the cups out after cutting or grinding opposing notches...
Forum: Classic & Vintage
02-29-24, 10:25 AM
Replies: 37
Views: 1,478
Posted By dddd

One thing to keep in mind is that musical...

One thing to keep in mind is that musical instruments and to a lesser degree car body panels are not made from high-strength, cold-worked steel, which takes a lot more force to restore, and is a lot...
Forum: Classic & Vintage
02-28-24, 08:18 PM
Replies: 46
Views: 8,003
Posted By dddd

Awesome, all these years later! Time flies,...

Awesome, all these years later!

Time flies, does it not?
Forum: Classic & Vintage
02-28-24, 08:01 PM
Replies: 37
Views: 1,478
Posted By dddd

Using cable and housing to both actuate the...

Using cable and housing to both actuate the device and to act as a handle for getting it into the right spot along the tube, no problem with having to turn any bolt.

As for the vent hole in the...
Forum: Classic & Vintage
02-26-24, 09:54 PM
Replies: 37
Views: 1,478
Posted By dddd

Could some sort of "device" be fed up the...

Could some sort of "device" be fed up the downtube through the bottom bracket opening?

I'm imagining a piece of tubing, cut in two, about an inch long, with a cone wedge in each end.

Connected...
Forum: Classic & Vintage
02-26-24, 04:18 PM
Replies: 9
Views: 581
Posted By dddd

Simplex chainwheels and freewheels made in France...

Simplex chainwheels and freewheels made in France existed up into the 6-speed era, but of course these new freewheels are based on Asian designs, and made in Asian factories.
...
Forum: Classic & Vintage
02-26-24, 11:41 AM
Replies: 9
Views: 581
Posted By dddd

The bike industry has a very long history of...

The bike industry has a very long history of periodic huge swings of fortune, and the industry now seems affected by the wave caused by supply-chain issues a couple of years back.

Industry...
Forum: Classic & Vintage
02-25-24, 04:59 PM
Replies: 26
Views: 812
Posted By dddd

I haven't messed with any five-speed cassette...

I haven't messed with any five-speed cassette hubs, but on a similar model six-speed Uniglide cassette hub, I found that trying to use a 7s cassette didn't give near enough threaded engagement for...
Forum: Classic & Vintage
02-24-24, 02:30 PM
Replies: 17
Views: 756
Posted By dddd

Good to know that you so quickly found and...

Good to know that you so quickly found and utilized the Temu alloy lockrings that I had raved about!

This modded freewheel won't likely fit on a traditional 5s Phil freewheel hub though. I have...
Forum: Classic & Vintage
02-24-24, 02:09 PM
Replies: 17
Views: 756
Posted By dddd

A solid 10mm axle does expand the boundaries of...

A solid 10mm axle does expand the boundaries of load limits of whatever combination of freewheel and unsupported axle length one happens to be wanting to use.

On my Huffy "mid-fat" mtb I found...
Forum: Classic & Vintage
02-23-24, 10:29 PM
Replies: 6
Views: 305
Posted By dddd

Were the Conti tubes perhaps a little wider in...

Were the Conti tubes perhaps a little wider in the uninflated state?

Tubes stretch to fill a mounted tire, quite a bit actually.

But a stretched tube wall will produce a bigger hole after being...
Forum: Classic & Vintage
02-23-24, 09:04 PM
Replies: 17
Views: 756
Posted By dddd

Thanks for the comments, I too find lots of bent,...

Thanks for the comments, I too find lots of bent, even broken axles on the bikes I work on.

Prior to this project, I've always re-done the axle spacing on most bikes that I ride.
Seems like the...
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