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Search: Posts Made By: dddd
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08-10-22, 12:54 PM
Replies: 13
Views: 221
Posted By dddd

Sometimes some silicone/Teflon-based lube will...

Sometimes some silicone/Teflon-based lube will nicely restore the old cabling's performance. Sometimes not.

Oiling the shift levers, any light oil that penetrates readily should work, just avoid...
08-10-22, 12:19 PM
Replies: 14
Views: 346
Posted By dddd

The craftsmanship is actually decent-looking and...

The craftsmanship is actually decent-looking and with good alignment, but only on what I would say is most of them.

Many of them having nearly as bad craftsmanship and alignment as my two Grand...
08-10-22, 10:29 AM
Replies: 13
Views: 221
Posted By dddd

Cabling needs to be almost entirely free-moving,...

Cabling needs to be almost entirely free-moving, with little to no detectable "losses" with respect to uptake and release of cable as the lever moves.

Calipers need to be free-moving on their own,...
08-07-22, 06:04 PM
Replies: 10
Views: 220
Posted By dddd

I'm recalling that, though rare, there were...

I'm recalling that, though rare, there were Shrader-valve heads available for this style of pump, ...assuming that those included a check valve in them(?).
I'm somehow thinking that Primus made...
08-07-22, 05:31 PM
Replies: 8
Views: 230
Posted By dddd

Supersport I'd say.

Supersport I'd say.
08-07-22, 05:29 PM
Replies: 8
Views: 130
Posted By dddd

So your rear Normandy hub as how many 7/32" ball...

So your rear Normandy hub as how many 7/32" ball bearings?

Sounds like what you might find in a Helicomatic hub(?).
08-07-22, 04:32 PM
Replies: 76
Views: 1,447
Posted By dddd

Small-diameter holes can have a higher "stress...

Small-diameter holes can have a higher "stress concentration factor" than larger-diameter holes.

I would be more wary drilling into butted frame tubing, all else being equal.

I ride a 1981...
08-07-22, 04:10 PM
Replies: 17
Views: 360
Posted By dddd

Center-pull calipers typically have better...

Center-pull calipers typically have better leverage, since each arm pivot is closer to the brake pad.
This also reduces frictional binding at the pivots, especially where polymer bushings are used....
08-07-22, 03:53 PM
Replies: 14
Views: 309
Posted By dddd

Nice bike, I really like the paint/color, looks...

Nice bike, I really like the paint/color, looks like one of the racier models in terms of geometry, and with the brake pads not struggling to reach 700c rims.
08-06-22, 03:47 PM
Replies: 26
Views: 669
Posted By dddd

The first letter "N" might be an abbreviation of...

The first letter "N" might be an abbreviation of the manufacturer's name, such as Norco.
08-06-22, 03:42 PM
Replies: 1
Views: 107
Posted By dddd

The less-expensive version of Suntour Command...

The less-expensive version of Suntour Command shifters can work with the auxiliary levers, but only if you cut off the lower end of each wing.
Yes, I've done it.
08-06-22, 03:33 PM
Replies: 17
Views: 234
Posted By dddd

Unless the OP finds a "donor" bike from which a...

Unless the OP finds a "donor" bike from which a complete groupset can be harvested, the better approach will be for the OP to decide which aspects of the bike's current componentry are sufficiently...
08-06-22, 03:09 PM
Replies: 7
Views: 199
Posted By dddd

DiaCompe made the levers, so another DiaCompe...

DiaCompe made the levers, so another DiaCompe Aero hood might fit perfectly.
08-05-22, 05:56 PM
Replies: 308
Views: 136,938
Posted By dddd

That sounded like what I recall meaning that red...

That sounded like what I recall meaning that red label rims were 700c and blue label rims were 27", but perhaps depending on brand (such as Super Champion and Araya)?

The poster failed to include...
08-03-22, 01:13 PM
Replies: 10
Views: 261
Posted By dddd

Since the pictured rings aren't one of the later...

Since the pictured rings aren't one of the later and rounder (HP, II, SG) variants, only the big ring here is of the "rounder" (3-1/2% shape/radius variation), while the smaller rings are both the...
08-03-22, 12:56 PM
Replies: 19
Views: 8,925
Posted By dddd

My experience with building and maintaining...

My experience with building and maintaining G40-rimmed wheels was very good, their shape structure and metallurgy allowed building to relatively high tensions (100+kg) with nary a hint of instability...
08-01-22, 05:10 PM
Replies: 23
Views: 548
Posted By dddd

I'm lucky enough to have a supermarket at the...

I'm lucky enough to have a supermarket at the bottom of the hill that I have to climb on my way home from hot-day training rides, the better to cool off with a cold bottle of water one last time...
07-30-22, 07:41 PM
Replies: 48
Views: 1,451
Posted By dddd

These kind of binder arrangements are actually...

These kind of binder arrangements are actually the best imo, mainly because the ordinary kind of 8.8- or 12.9-grade "socket head cap screw" tends to be a lot stronger than the typical, shouldered and...
07-28-22, 08:25 PM
Replies: 9
Views: 295
Posted By dddd

I think that the "K" cutout is distinctive,...

I think that the "K" cutout is distinctive, almost familiar, just waiting for someone to recognize it.
07-28-22, 07:49 PM
Replies: 35
Views: 809
Posted By dddd

Rearranging further, force actually equals...

Rearranging further, force actually equals pressure X area.

I routinely inflated my various 27x1-1/4" wire-bead tires to 90psi on hookless steel and alloy rims (Araya, Sturmey, Ukai, Rigida, etc.)...
07-28-22, 07:04 PM
Replies: 13
Views: 416
Posted By dddd

The tires alone could be the biggest determinant...

The tires alone could be the biggest determinant of the bike's sprightliness, might there also be thorn-resisting tubes or tire liners in the tires?

Generally speaking, touring bikes just don't...
07-27-22, 05:10 PM
Replies: 16
Views: 427
Posted By dddd

If any of the shims/washers that come with...

If any of the shims/washers that come with derailer pulleys are made of plastic, beware.

I've seen carnage (including my own visits to a doctor) resulting from a loosened pulley bolt, which can...
07-27-22, 04:42 PM
Replies: 20
Views: 492
Posted By dddd

Later Supersports came with the long-cage model...

Later Supersports came with the long-cage model Allvit or Schwinn-Approved derailer to accomodate a 32T freewheel cog.

On the long-cage models, the mounting claw bracket featured a more-rearward...
07-27-22, 12:29 PM
Replies: 17
Views: 477
Posted By dddd

How old, i.e. which model FD? Generally it...

How old, i.e. which model FD?

Generally it was during the mid-90's that shaping of the front derailer's inner cage plate for specific middle-big chainring count differences took over, but such...
07-27-22, 12:18 PM
Replies: 17
Views: 477
Posted By dddd

My preference for Shimano chain is particularly...

My preference for Shimano chain is particularly with their 10-speed chain, but also with their 9s chain.

I've observed first-hand, many times, that using a SRAM 10s chain on a 10s Shimano road...
07-26-22, 01:58 PM
Replies: 17
Views: 477
Posted By dddd

One important thing to know about "modern" front...

One important thing to know about "modern" front derailers is that the inner cage plate is shaped for a specific tooth-count difference between the big and middle rings.

So as long as the new...
07-25-22, 10:53 PM
Replies: 39
Views: 1,239
Posted By dddd

Sad news. I'd recently noticed his absence here...

Sad news. I'd recently noticed his absence here and had been wondering, hoping for the best and not knowing he'd been sick.

I'm remembering his once posting to the CR List if I recall, showed a...
07-17-22, 12:32 AM
Replies: 18
Views: 589
Posted By dddd

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/dscf1859_60a101728a0c9025e10a07aca4b4ff7a409eb3aa.jpg...
07-16-22, 07:15 PM
Replies: 18
Views: 589
Posted By dddd

I've got one of these frames in my size,...

I've got one of these frames in my size, beautifully re-painted in metallic green.

The 73/74-degree frame angles are the same as all of Schwinn's higher-spec road bikes (Circuit, Paramount, et...
07-13-22, 11:59 PM
Replies: 19
Views: 556
Posted By dddd

I'm mainly trying to achieve a better chainline...

I'm mainly trying to achieve a better chainline when using the big ring, since I'm in rolling foothills terrain here and trying to avoid frequent use of the front derailer (which usually causes a...
07-13-22, 08:41 PM
Replies: 10
Views: 420
Posted By dddd

Wow, lime-green, my favorite Schwinn color! ...

Wow, lime-green, my favorite Schwinn color!

After building and riding many miles on my own green Varsity resto-mod bike, I long searched for a 24" frame in the same color.
I did recently find and...
07-13-22, 11:40 AM
Replies: 19
Views: 556
Posted By dddd

Generally I'm always trying to get the chainrings...

Generally I'm always trying to get the chainrings in further, with the limits being:

1) Will the front derailer still be sufficiently adjustable so as to still pull the chain down to the smallest...
07-13-22, 10:34 AM
Replies: 95
Views: 2,255
Posted By dddd

Is that supposed to be a real wind tunnel, LMAO.

Is that supposed to be a real wind tunnel, LMAO.
07-13-22, 08:52 AM
Replies: 5
Views: 317
Posted By dddd

Giant Cadex bonded carbon framesets were a...

Giant Cadex bonded carbon framesets were a feature of Univega-branded "Carbolite" bikes, I had and raced one circa 1993 or so, no issues.
07-13-22, 08:49 AM
Replies: 25
Views: 1,086
Posted By dddd

From the catalog images, the "Criterium" and...

From the catalog images, the "Criterium" and "Competition" models appear to use the pictured "box" fork crown, not sloping.

The "Nuovo" Professional's fork being the only one that's chromed(?).
07-10-22, 04:24 PM
Replies: 196
Views: 7,426
Posted By dddd

It's not every day that I see a Huffy in the 24"...

It's not every day that I see a Huffy in the 24" frame size, much less with a corn cob freewheel.

Good job.

Be aware that this vintage of Huffy is very likely brazed, not welded. So the tubing...
07-10-22, 12:54 PM
Replies: 19
Views: 2,101
Posted By dddd

I usually start by inspecting the clamp ears for...

I usually start by inspecting the clamp ears for symmetry and parallelism, followed by correcting that if needed.
I correct bent-in ears by fitting the post to 1" depth, then leaning rearward on it....
07-10-22, 12:29 PM
Replies: 49
Views: 1,560
Posted By dddd

I found myself imagining that it was on a folding...

I found myself imagining that it was on a folding bike rack, the ones where the rack can be tilted down for access to a tailgate.

Maybe the hinge lock failed, the pin fell out or whatever, and the...
07-09-22, 08:16 PM
Replies: 50
Views: 1,164
Posted By dddd

About 40 years ago, I had a cat pass under my...

About 40 years ago, I had a cat pass under my Yamaha RD400 as I passed at around 25mph, which I would have thought impossible until it happened.
I looked back and saw the cat make it to the other...
07-09-22, 08:05 PM
Replies: 9
Views: 387
Posted By dddd

The levers that were mounted on band clamps at...

The levers that were mounted on band clamps at the factory were different, as you have found.

Perhaps some other band clamp might be made to be compatible, or maybe they would fit on older Shimano...
07-06-22, 08:36 PM
Replies: 62
Views: 1,600
Posted By dddd

I'm really enjoying this thread, it's great...

I'm really enjoying this thread, it's great seeing y'all out in the wild with the great (some quite familiar) bikes. I especially liked seeing bwilli88's pictures from Cambodia for a striking change...
06-26-22, 08:07 PM
Replies: 2
Views: 212
Posted By dddd

I have successfully used triple-specific left STI...

I have successfully used triple-specific left STI levers to operate normal double arrangements. The trick was to set it up using the shifter's 1st and 2nd detents, with the 3rd detent locked out...
06-24-22, 05:12 PM
Replies: 11
Views: 205
Posted By dddd

The S P might be only a date code.

The S P might be only a date code.
06-24-22, 05:09 PM
Replies: 4
Views: 218
Posted By dddd

I've compared Shimano and Joytech freehubs...

I've compared Shimano and Joytech freehubs dimensionally and found that the 7s Joytech hub was a bit heavier and didn't position the driveside flange as favorably as the Shimano freehub.
But I have...
06-22-22, 07:07 PM
Replies: 11
Views: 329
Posted By dddd

The 38t BioPace ring would be common to find,...

The 38t BioPace ring would be common to find, ...but only in 110mm BCD.
06-22-22, 03:31 PM
Replies: 14
Views: 448
Posted By dddd

I suspect that a suitable Shimano concave plate...

I suspect that a suitable Shimano concave plate would work.

Can you show us what you have, with views of the DT and the back side of the shift levers?

Those chromed Shimano escutcheons, both...
06-22-22, 03:16 PM
Replies: 11
Views: 329
Posted By dddd

Two things to consider first. A "big"...

Two things to consider first.

A "big" (outer) Biopace ring will always be a relatively round one with only 3-1/2% variation of it's outer radius, while Biopace middle and inner rings will be...
06-22-22, 08:06 AM
Replies: 5,116
Views: 547,103
Posted By dddd

Certain of the high-end Maillard hubs, including...

Certain of the high-end Maillard hubs, including the ones they made for Roval, have a very fine-pitch threading on the 10mm rear axles.
It made for a stronger axle, less thread depth and less stress...
06-21-22, 06:17 PM
Replies: 14
Views: 448
Posted By dddd

It sounds like you need an adaptor (set of) that...

It sounds like you need an adaptor (set of) that may not exist(?).

Alternative might be to clamp on a band-clamp having suitable bosses, but leaving the Shimano bosses sitting there.

Or use...
06-19-22, 07:27 PM
Replies: 28
Views: 883
Posted By dddd

I wondered if this numbering scheme might apply...

I wondered if this numbering scheme might apply to my 1979 PXN10E, but the serial on the sticker is pure numerical, 52441xx. Then I found the stamped number, first digit mostly obscured by the...
Showing results 1 to 50 of 1000
 


 
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