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Search: Posts Made By: FBinNY
Showing results 1 to 50 of 1000
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Forum: Bicycle Mechanics
04-17-24, 04:57 PM
Replies: 10
Views: 258
Posted By FBinNY

Agree that this is a nice fork, from a caring...

Agree that this is a nice fork, from a caring builder.

Though I can't be sure, I suspect the raised crown trim is stamped, or cut sheet stock, brazed to a flat top crown as a builder...
Forum: Bicycle Mechanics
04-17-24, 11:25 AM
Replies: 9
Views: 148
Posted By FBinNY

Yes it's a standard, but as noted earlier the...

Yes it's a standard, but as noted earlier the precise location of the disc varies. If you plan on using various wheels on the same bike, you can shim the discs (or on some adjust the axle spacing)...
Forum: Commuting
04-17-24, 06:27 AM
Replies: 4
Views: 136
Posted By FBinNY

When I'm riding and there's a thunderstorm, I get...

When I'm riding and there's a thunderstorm, I get wet. I don't worry about lightening unless it's close (thunder within 1 second of flash) and even then not really worried unless I'm in an open...
Forum: Bicycle Mechanics
04-17-24, 12:54 AM
Replies: 10
Views: 258
Posted By FBinNY

As noted, the classic forum is your best bet. ...

As noted, the classic forum is your best bet.

Otherwise, it looks to be something from a UK framebuilder, possibly with 531 blade. Back in that era, lug makers offered crowns in endless...
Forum: Bicycle Mechanics
04-17-24, 12:45 AM
Replies: 4
Views: 160
Posted By FBinNY

That would be a 70mm Italian threaded BB, I hope....

That would be a 70mm Italian threaded BB, I hope.

The issue is the length of the spindle. If it was always offered in 68 & 70mm versions, there was probably a way to factor the 2mm. Most likely a...
Forum: Bicycle Mechanics
04-16-24, 10:33 PM
Replies: 23
Views: 572
Posted By FBinNY

This is a freak kind of thing. While those of...

This is a freak kind of thing. While those of who've been around long enough have seen a few cracked plates, almost exclusively outer, it's not a common thing.

So, other than standard care in...
Forum: Bicycle Mechanics
04-16-24, 07:22 PM
Replies: 23
Views: 572
Posted By FBinNY

About the only thing that's certain is that the...

About the only thing that's certain is that the interval between a single plate failing and the chain snapping is very short.

The chain simply cannot handle loads with a broken plate. So, while...
Forum: Bicycle Mechanics
04-16-24, 05:39 PM
Replies: 28
Views: 634
Posted By FBinNY

FWIW, I was happy with mine for years, and...

FWIW, I was happy with mine for years, and replaced them with Campy Record (1st gen) only after a crash bent my front brake. If not for the crash they'd still be there.
Forum: Bicycle Mechanics
04-16-24, 05:35 PM
Replies: 23
Views: 572
Posted By FBinNY

I doubt it. Shifting under load causes nicks and...

I doubt it. Shifting under load causes nicks and peening of the plates, especially outer ones. It also forces plates outward on pins.

So we see stiff links, and breakage by plates coming off...
Forum: Bicycle Mechanics
04-16-24, 04:03 PM
Replies: 15
Views: 522
Posted By FBinNY

Finally got a chance to look more closely at the...

Finally got a chance to look more closely at the photo. While I don't know what it implies, I find it very curious that the 2 "cracks" are just about 180 degrees apart, and perfectly straight and...
Forum: Bicycle Mechanics
04-16-24, 11:57 AM
Replies: 23
Views: 572
Posted By FBinNY

Just speculating so factor that. With the...

Just speculating so factor that.

With the understanding that modern chains have plates thinned to the point of having minimal safety margin, we can expect greater instances of breakage owing to...
Forum: Bicycle Mechanics
04-16-24, 04:46 AM
Replies: 15
Views: 425
Posted By FBinNY

If so, I suspect the broken off stud was threaded...

If so, I suspect the broken off stud was threaded into the shell. With a bit of luck, you might get it out with an EZ out. Then a new freehub body can save the wheel.

Note: a decent amount of...
Forum: Bicycle Mechanics
04-15-24, 08:48 PM
Replies: 12
Views: 357
Posted By FBinNY

Agreed. Typically the axle is pushed...

Agreed.

Typically the axle is pushed through, pushing the far bearing out in the process. My improvised bearing puller is for the remaining one.
Forum: Bicycle Mechanics
04-15-24, 04:05 PM
Replies: 30
Views: 670
Posted By FBinNY

So I have a few (10+) years on you. I agree that...

So I have a few (10+) years on you. I agree that overall quality is non comparable in many ways, but I put countless miles on bikes with steel rims, pressed steel (highly flexy) side pull brakes,...
Forum: Bicycle Mechanics
04-15-24, 03:29 PM
Replies: 15
Views: 522
Posted By FBinNY

You might get more specific answers if you...

You might get more specific answers if you offered details about what needs fixing.

All I see is a photo of a wheel, which may or may not be perfectly OK.
Forum: Bicycle Mechanics
04-15-24, 03:25 PM
Replies: 8
Views: 260
Posted By FBinNY

Why is the limit backed out so far? Odds...

Why is the limit backed out so far?

Odds are that it's not doing anything at this point, and tightening it won't make a difference.

Keep in mind that limits don't affect cage position or...
Forum: Bicycle Mechanics
04-15-24, 03:12 PM
Replies: 18
Views: 8,332
Posted By FBinNY

Is 15 years a new record? People tend to...

Is 15 years a new record?

People tend to forget that brakes are often better than they need to be.

At various times, Shimano and others have gone out of their way to de-tube or limit front...
Forum: Bicycle Mechanics
04-15-24, 03:09 PM
Replies: 30
Views: 670
Posted By FBinNY

Ignore the naysayers, many of which are too young...

Ignore the naysayers, many of which are too young to remember when "good" bikes were not much better than this.

I wouldn't spend dough upgrading, but this bike has lots of potential miles in it. ...
Forum: Bicycle Mechanics
04-15-24, 02:08 PM
Replies: 10
Views: 343
Posted By FBinNY

Sometimes the easiest way is the best. Put...

Sometimes the easiest way is the best.

Put the bike in a warm place, ie. in the sun or near a radiator, and leave a vent hole---- leave a WB screw off.

Any moisture will evaporate and vent.
Forum: Bicycle Mechanics
04-15-24, 01:07 PM
Replies: 12
Views: 357
Posted By FBinNY

If you have one cap off, you might be able to...

If you have one cap off, you might be able to drive the axle out, possibly taking the bearing with it.


Otherwise, assuming you have access to some power tools, buy a large nut with a thread...
Forum: Advocacy & Safety
04-15-24, 09:12 AM
Replies: 50
Views: 1,774
Posted By FBinNY

As someone for whom 3mm or so once was the...

As someone for whom 3mm or so once was the difference between annoyance and grievous or fatal injury, I'm a big believer in the importance of luck.

If we live to talk about it, that's a good thing.
Forum: Bicycle Mechanics
04-15-24, 09:05 AM
Replies: 28
Views: 634
Posted By FBinNY

Another example of a product that served well for...

Another example of a product that served well for years, but who's time passed with the advent of either new technology and/or ham fisted mechanics.
Forum: Bicycle Mechanics
04-15-24, 08:57 AM
Replies: 77
Views: 2,560
Posted By FBinNY

Wow, people actually read my posts carefully. ...

Wow, people actually read my posts carefully.

Good catch, but not quite. I'd never offer guideline like 91.5kgf. I've fixed it to 90-105kgf.

Thanks
Forum: Bicycle Mechanics
04-15-24, 07:58 AM
Replies: 77
Views: 2,560
Posted By FBinNY

Correct spoke tension isn't about the hub, but...

Correct spoke tension isn't about the hub, but about the spokes themselves, and to a lesser extent the rim.

Assuming 32 or 36 14g (2mm) butted spokes, I'd consider 90-105kgf just about right. The...
Forum: Bicycle Mechanics
04-14-24, 08:12 PM
Replies: 28
Views: 634
Posted By FBinNY

Brake caliper leverage is cut in stone, but total...

Brake caliper leverage is cut in stone, but total brake leverage is the result of both caliper and lever geometry.

So, measure the distance from the pivot to the cable swivel. Shorter means more...
Forum: Bicycle Mechanics
04-14-24, 06:21 PM
Replies: 28
Views: 634
Posted By FBinNY

If you shop around, there are levers with greater...

If you shop around, there are levers with greater leverage, which comes at the cost of reduced cable pull. That may solve the problem, though they'll call for more aligned wheels and less forgiving...
Forum: Bicycle Mechanics
04-14-24, 06:03 PM
Replies: 15
Views: 425
Posted By FBinNY

I define 2 classes of freehub body The Shimano...

I define 2 classes of freehub body
The Shimano type affixed to the hub. the clutch entirely within, and those like Campy, with the clutch between the body and hub shell.

I consider the Shimano...
Forum: Bicycle Mechanics
04-14-24, 05:30 AM
Replies: 30
Views: 670
Posted By FBinNY

Impossible to predict. Keep in mind that this is...

Impossible to predict. Keep in mind that this is a very simple bike without things like derailleurs which may be delicate or finicky.

I'd make sure the wheels are true and tight. Likewise all...
Forum: Bicycle Mechanics
04-14-24, 05:01 AM
Replies: 30
Views: 670
Posted By FBinNY

I take a different tack with beater bikes. ...

I take a different tack with beater bikes. Basically, I don't do ANY upgrades, save possibly the saddle, and ride until something needs replacement, at which time I'll go with something better.
...
Forum: Bicycle Mechanics
04-14-24, 02:16 AM
Replies: 28
Views: 969
Posted By FBinNY

Racers have various ways to manage tipping, and...

Racers have various ways to manage tipping, and let the situation dictate.

On descents, or if the inside wheel is driving, lifting the outside wheel and riding the inside wheel like a bike, is...
Forum: Bicycle Mechanics
04-13-24, 02:03 PM
Replies: 29
Views: 758
Posted By FBinNY

Why? Quality. HSS is more than adequate to...

Why?

Quality. HSS is more than adequate to the task. Besides, it would be hard to get adequate speed for carbide to offer a benefit.

Carbide MIGHT make sense if this were a heat treated CrMo...
Forum: Bicycle Mechanics
04-13-24, 12:16 PM
Replies: 12
Views: 357
Posted By FBinNY

REPEAT ----- There are too many designs to...

REPEAT ----- There are too many designs to blindly approach disassembly.

As noted, the internal splines indicate a likelihood that the end caps are threaded, and want hex or torx keys to loosen.
...
Forum: Bicycle Mechanics
04-13-24, 08:22 AM
Replies: 10
Views: 363
Posted By FBinNY

Assuming you transferred thr cassette, we can...

Assuming you transferred thr cassette, we can rule that out. Likewise, I'd discount the hub or freehub, since they don't usually factor into a shifting.

However, hubs are not all precisely...
Forum: Bicycle Mechanics
04-12-24, 10:17 PM
Replies: 29
Views: 758
Posted By FBinNY

"Best practiice", which is expensive unless you...

"Best practiice", which is expensive unless you have a friend with a machine shop is removal by EDM. This is how I used to remove broken taps (usually micro-adjust) for frame builders.

Here, I'd...
Forum: Bicycle Mechanics
04-12-24, 09:54 PM
Replies: 34
Views: 818
Posted By FBinNY

It's not a competition, nor will I argue with a...

It's not a competition, nor will I argue with a straw man. However, we've crossed this bridge often enough in the past, so I won't argue the point farther. Followers of this thread are the ones...
Forum: Bicycle Mechanics
04-12-24, 09:43 PM
Replies: 34
Views: 818
Posted By FBinNY

I'm sorry, that you have an issue with the...

I'm sorry, that you have an issue with the concept of "impossible", but I stand my the statement. Read the post (#11) where I explained why and feel free to argue that point, but I won't. In the...
Forum: Bicycle Mechanics
04-12-24, 09:34 PM
Replies: 34
Views: 818
Posted By FBinNY

To the OP. Before you do any more damage (if...

To the OP.

Before you do any more damage (if you've already done any), you really need to make an effort to see where and how it's bent. Earlier I suggested you might use a bubble level to verify...
Forum: Bicycle Mechanics
04-12-24, 09:22 PM
Replies: 34
Views: 818
Posted By FBinNY

Is the pot calling the kettle black? While I...

Is the pot calling the kettle black? While I don't believe I've harassed the OP by suggesting he determine the problem, I compare that to your post which seems more focused on attacking me than...
Forum: Bicycle Mechanics
04-12-24, 06:29 PM
Replies: 34
Views: 818
Posted By FBinNY

I agree in principle. However, I've seen too...

I agree in principle. However, I've seen too many examples of OPs poor judgement or explanations in identifying a problem.

Earlier, twisting is mentioned, based on the binder ears being off...
Forum: Bicycle Mechanics
04-11-24, 02:24 PM
Replies: 23
Views: 443
Posted By FBinNY

Who knows? Still not a mechanical problem, except...

Who knows? Still not a mechanical problem, except fine tuning expectations to reality. IMO saddles are about comfort, not precise weight specs.
Forum: Bicycle Mechanics
04-11-24, 01:19 PM
Replies: 23
Views: 443
Posted By FBinNY

How is this a mechanical issue? Are you looking...

How is this a mechanical issue? Are you looking for advice on how b to shave off 16 grams,?
Forum: Bicycle Mechanics
04-11-24, 09:22 AM
Replies: 34
Views: 818
Posted By FBinNY

Back to the basics, and the first rule of...

Back to the basics, and the first rule of mechanics --- identify and qualify any problem, before attempting to fix it.

I'll assume that there MAY be a bend just below where the seatstays join.
...
Forum: Bicycle Mechanics
04-11-24, 07:53 AM
Replies: 10
Views: 366
Posted By FBinNY

Take the wheel off and spin it holding the axle...

Take the wheel off and spin it holding the axle in your fingers. Try it both letting the cassette turn with it, and not letting it turn.

You're feeling and listening for roughness in either the...
Forum: Bicycle Mechanics
04-11-24, 01:03 AM
Replies: 2
Views: 211
Posted By FBinNY

Removing the lever is easy. However, switching...

Removing the lever is easy. However, switching them can be problematic. The dimensions of the working areas --- cam & bearing --- are critical and not standardized. Odds favor, switching within...
Forum: Bicycle Mechanics
04-11-24, 12:58 AM
Replies: 34
Views: 818
Posted By FBinNY

IMO the force that would be needed to twist the...

IMO the force that would be needed to twist the tube here is beyond staggering. The tube is well constrained by the top tube, so we're talking about twisting noticeably over an inch or two. I...
Forum: Bicycle Mechanics
04-10-24, 02:21 PM
Replies: 16
Views: 401
Posted By FBinNY

Shifting in the "pulling cable" direction is...

Shifting in the "pulling cable" direction is rarely affected by anything cable related. So, my initial suspicion is gunk, keeping thebsmall engagement spring from catching. Flush with thin spray...
Forum: Bicycle Mechanics
04-10-24, 01:42 PM
Replies: 34
Views: 818
Posted By FBinNY

Damn you, you.stole my answer!! To the OP. ...

Damn you, you.stole my answer!!

To the OP.

It sounds like we're being facetious, but the truth is that's basically it. Jig the frame up the same way, and use the same tools and force as before....
Forum: Bicycle Mechanics
04-10-24, 05:19 AM
Replies: 2
Views: 200
Posted By FBinNY

As above, it's pretty normal One thing that...

As above, it's pretty normal

One thing that might help somewhat may be some cable tension.

If your cable is slack enough for the brake to open fully, there's no load on the lever and it'll be...
Forum: Advocacy & Safety
04-09-24, 11:58 PM
Replies: 25
Views: 1,171
Posted By FBinNY

FWIW I saw a possible reason why a serious roadie...

FWIW I saw a possible reason why a serious roadie might avoid that, otherwise nice bike lane.

Two way traffic. As a road rider who cruises along at 20ish mph, oncoming cyclists make me much more...
Forum: Bicycle Mechanics
04-09-24, 11:50 PM
Replies: 4
Views: 252
Posted By FBinNY

IME frames with open ports at the BB are easy to...

IME frames with open ports at the BB are easy to thread without any special hacks.

Feed the wire with the downtube vertical, then use a flashlight and your fingers or a crochet hook to retrieve.
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