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Search: Posts Made By: dddd
Showing results 1 to 50 of 523
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08-10-22, 12:54 PM
Replies: 13
Views: 220
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: 340
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: 220
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, 05:31 PM
Replies: 8
Views: 226
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: 1,443
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...
08-06-22, 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.
08-03-22, 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...
07-28-22, 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, 04:42 PM
Replies: 20
Views: 491
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...
07-25-22, 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...
07-13-22, 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...
07-10-22, 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...
07-06-22, 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...
06-24-22, 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.
06-22-22, 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...
06-15-22, 11:18 AM
Replies: 14
Views: 365
Posted By dddd

Federal safety guidelines were I believe...

Federal safety guidelines were I believe mandatory post-1977.

Some of the rules forced re-designs of for example the crankset and bottom bracket, to accommodate the thicker (lipped) outer cage...
06-14-22, 10:38 AM
Replies: 7
Views: 389
Posted By dddd

Yes, looks like a 1990's design to me. The...

Yes, looks like a 1990's design to me.

The post name is "Italmanubri", ITM for short, Italian maker of primarily stems and bars.
06-12-22, 05:14 PM
Replies: 39
Views: 1,663
Posted By dddd

Probably some hardened detritus got knocked loose...

Probably some hardened detritus got knocked loose along the bearings, would be advisable to remove the 9-ball retainers and install (11) 1/4" balls on each side.

Good work if you saved the...
06-08-22, 07:09 PM
Replies: 39
Views: 1,663
Posted By dddd

Be aware that the crank cotters are hardened,...

Be aware that the crank cotters are hardened, though any replacements sold today typically are not.

So it is imperative not to damage the threaded studs on these cotters with excess removal force....
06-08-22, 11:37 AM
Replies: 68
Views: 2,006
Posted By dddd

Shimano's aesthetic stand-outs, for me, include...

Shimano's aesthetic stand-outs, for me, include the oft-mentioned 7410 crankset, the 7800 brake calipers, and the 7700 rear derailer (which has found it's way onto many of my vintage bikes, used with...
06-06-22, 07:13 PM
Replies: 51
Views: 1,637
Posted By dddd

Some of us will have noticed by now that PTFE...

Some of us will have noticed by now that PTFE particulates are very fast disappearing from the entire lubricant market, often replaced by newer "ceramic" particulates similarly intended to reduce...
06-01-22, 08:59 AM
Replies: 20
Views: 620
Posted By dddd

As one who loves installing certain of the...

As one who loves installing certain of the SunRace chromed freewheels (7-speed for me), I have seen a couple of problems turn up on a few of the perhaps ~30 of them that I have installed.

The...
05-30-22, 09:12 AM
Replies: 29
Views: 3,583
Posted By dddd

Continental-brand wire-bead tires seem to be...

Continental-brand wire-bead tires seem to be among the tightest-fitting (and thus safest) tires available for use on non-hooked clincher rims!

As well, the Araya brand of rims was one of the...
05-24-22, 01:28 PM
Replies: 6
Views: 199
Posted By dddd

Seems that I found the same model as non-fixie's...

Seems that I found the same model as non-fixie's at a local "Man Cave" thrift store.

It has working brakes and drivetrain!

I would like to know where it was made.
...
05-17-22, 01:22 PM
Replies: 23
Views: 800
Posted By dddd

The 4mm change in pad height effects about a 10%...

The 4mm change in pad height effects about a 10% reduction in caliper braking leverage when switching to 700c, one more detail to perhaps ponder.

It's just the opposite though if the bike has...
05-17-22, 12:37 PM
Replies: 196
Views: 7,426
Posted By dddd

The degree of foot retention using unsecured or...

The degree of foot retention using unsecured or "flat" pedals can vary, with some setups providing much better retention qualities than others.

Pedals that are relatively tall and/or short...
05-16-22, 11:43 AM
Replies: 32
Views: 1,480
Posted By dddd

The steel style of seatpost top, referred to as...

The steel style of seatpost top, referred to as seatpost "guts" by Ebay sellers, is versatile and usually reliable.
I say "usually" because it's not too uncommon for the toothed hardware clamping...
05-15-22, 10:13 PM
Replies: 196
Views: 7,426
Posted By dddd

Did somebody say Varsity? The older ones have I...

Did somebody say Varsity? The older ones have I believe a 69-degree seat tube angle, so reversing the clamp is a no-brainer.
...
05-14-22, 10:42 PM
Replies: 42
Views: 1,542
Posted By dddd

Oh, same as mine then! I'm sure that yours will...

Oh, same as mine then! I'm sure that yours will be a keeper.
https://cimg5.ibsrv.net/gimg/bikeforums.net-vbulletin/800x600/26321238368_5137ecfb9d_c_543af3268be1a3dff8d9062ca12a5d12836b0151.jpg
05-14-22, 02:04 PM
Replies: 4
Views: 159
Posted By dddd

I sometimes apply such a bend in order to better...

I sometimes apply such a bend in order to better control the chain from possibly over-shifting past the big ring. It works!

The front edge of the cage isn't affected much by cross-chaining, so the...
05-14-22, 01:58 PM
Replies: 42
Views: 1,542
Posted By dddd

Wow! Does it fit you? Looks like a 22-1/2 or...

Wow! Does it fit you? Looks like a 22-1/2 or 23-inch(?).
Those Phil hubs look like 1st-generation parts. Be sure to loosen any quick-release skewer that's holding a freewheel remover tool in place...
05-13-22, 10:06 PM
Replies: 13
Views: 368
Posted By dddd

Starting in 1979, the inexpensive U08/9/10 models...

Starting in 1979, the inexpensive U08/9/10 models had a completely new frame and fork, still having lugs but made from a better "103" Carbolite tubing.

The geometry was also completely reworked,...
05-13-22, 04:52 PM
Replies: 32
Views: 1,480
Posted By dddd

Bigger, old bikes that I want to do serious...

Bigger, old bikes that I want to do serious riding on, if the geometry is slack, I'll either buy a zero-offset post for it or flip the post if it's a decent alloy one.
...
05-06-22, 04:29 PM
Replies: 13
Views: 340
Posted By dddd

I've dealt with this exact situation a few times...

I've dealt with this exact situation a few times before.

I used the same technique on all of them, based not on metal removal but on forming the opening round again.

Get thee a steel or...
05-02-22, 11:14 PM
Replies: 12
Views: 437
Posted By dddd

Park double-sided puller should work using the...

Park double-sided puller should work using the larger 23mm end.
05-02-22, 11:03 PM
Replies: 6
Views: 250
Posted By dddd

1/8" sounds more like it to me. Even the...

1/8" sounds more like it to me.

Even the Huret ball-bearing derailer pulleys are 1/8", and look about the same size as freewheel bearings by my recollection.

1/16" bearings might be used on a...
05-01-22, 08:01 PM
Replies: 31
Views: 794
Posted By dddd

You can't fit a 7s cassette on a 6s freehub. ...

You can't fit a 7s cassette on a 6s freehub.

No 11t smallest cog will fit on a non Dura-Ace freehub that doesn't use a separate lockring to secure the cogs. Your freehub cannot take an 11t cog.
...
05-01-22, 02:37 PM
Replies: 3
Views: 311
Posted By dddd

4mm Allen key through the hole in the front of...

4mm Allen key through the hole in the front of the lever.
04-19-22, 09:18 PM
Replies: 35
Views: 1,230
Posted By dddd

That's my approach as well. Beware though,...

That's my approach as well.

Beware though, that the "locking cone" on many cheap modern freewheels may actually bend if you put a hammer and punch to it (as I've found out the hard way).
With...
04-17-22, 09:37 AM
Replies: 7
Views: 275
Posted By dddd

Of course with used bikes we don't know the...

Of course with used bikes we don't know the history of any of the bike's parts, yet we ride them!:eek:

And in many or most cases, there is no one that we can sue if something bad happens.

I've...
04-09-22, 01:34 PM
Replies: 5
Views: 190
Posted By dddd

I've dealt with this issue many times after...

I've dealt with this issue many times after installing a wider freewheel or even just a different wheel.

I strongly resist having to extend the DS axle overhang since that messes with the...
04-06-22, 08:58 PM
Replies: 29
Views: 3,583
Posted By dddd

This was my experience as well, I routinely ran...

This was my experience as well, I routinely ran 90psi on many of the 1970's Araya hookless alloy rims and never had a tire blow off.

Weinmann on the other hand definitely had QC issues relating to...
04-06-22, 08:38 PM
Replies: 29
Views: 1,506
Posted By dddd

Age- and use-hardened pads are by far the biggest...

Age- and use-hardened pads are by far the biggest culprit in terms of generating shards from perfectly good rims and then galling the rim's surface.

Most DiaCompe road pads seem to be immune from...
04-02-22, 04:49 PM
Replies: 308
Views: 136,938
Posted By dddd

The only tires that are available in 27" sizes...

The only tires that are available in 27" sizes and having been tested for rolling resistance would be the Continental Ultrasport and Ultrasport III, although versions of the Vittoria Zaffiro that...
03-31-22, 10:23 AM
Replies: 32
Views: 1,346
Posted By dddd

The relative length of the head tube (of two...

The relative length of the head tube (of two bikes having identical seat tube lengths) is directly affected by the fork's axle-to-crown length as well as by the bottom bracket drop dimension.
So...
Showing results 1 to 50 of 523
 


 
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