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Search: Posts Made By: FBinNY
Showing results 1 to 50 of 1000
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Forum: Bicycle Mechanics
06-14-24, 01:29 PM
Replies: 13
Views: 175
Posted By FBinNY

You can leave the hat on. It's a bit of both,...

You can leave the hat on. It's a bit of both, but seemingly so easily resolved that there's no point in arguing.

I agree with the pump needing to be designed for the valve. But there's also some...
Forum: Bicycle Mechanics
06-14-24, 12:37 PM
Replies: 49
Views: 5,397
Posted By FBinNY

While I understand the point you're trying to...

While I understand the point you're trying to make, it's unfortunately a poor analogy because ping pong balls float and therefore we can't compare sink rates.
Forum: Bicycle Mechanics
06-14-24, 02:24 AM
Replies: 13
Views: 175
Posted By FBinNY

First thing, I'd get something to hold the stem...

First thing, I'd get something to hold the stem and tighten the core tighter.

If the issue persists, I'd consider a threadlocker.

Beyond that depends on the pump. For a threaded head,...
Forum: Bicycle Mechanics
06-13-24, 11:29 PM
Replies: 21
Views: 340
Posted By FBinNY

I'm not going to waste my time debating some...

I'm not going to waste my time debating some nebulous, hypothetical "something much more specific...." statement.

If you truly have a theory, you'd also be able to explain how it works. So, I'll...
Forum: Bicycle Mechanics
06-13-24, 06:22 PM
Replies: 21
Views: 340
Posted By FBinNY

Feel free to disagree. However, those reading...

Feel free to disagree.
However, those reading this should consider that the forces are applied to the steerer where the stem attaches. Also consider that bar widths and stem extensions are within...
Forum: Bicycle Mechanics
06-13-24, 05:59 PM
Replies: 16
Views: 231
Posted By FBinNY

The problem is that the needed parts depend on...

The problem is that the needed parts depend on the design.

For example, if the axle lacks shoulders or a spacer behind the bearing, simple spaces transfer the QR compression to the unsupported...
Forum: Bicycle Mechanics
06-13-24, 04:41 PM
Replies: 21
Views: 340
Posted By FBinNY

The limitation is purely and simply about...

The limitation is purely and simply about leverage.

Riders exert forces on their handlebars that are essentially applied where the stem clamps to the steerer.

The distance from the point of...
Forum: Bicycle Mechanics
06-13-24, 04:31 PM
Replies: 16
Views: 231
Posted By FBinNY

I have no problem with the term "end caps" and I...

I have no problem with the term "end caps" and I immediately understood what the OP is describing.

Various hubs use similar parts which fit over the axle and may fulfill various purposes...
Forum: Bicycle Mechanics
06-12-24, 11:46 PM
Replies: 43
Views: 25,050
Posted By FBinNY

If you didn't get it sorted ----- that you'd...

If you didn't get it sorted ----- that you'd remember.
Forum: Bicycle Mechanics
06-12-24, 11:25 PM
Replies: 49
Views: 5,397
Posted By FBinNY

For those who fret over stuff like hub friction,...

For those who fret over stuff like hub friction, may I suggest some DIY scientific research.

You'll need a friend who weights 20# or so more or less than you, a hill, and of course, a "slow"...
Forum: Bicycle Mechanics
06-12-24, 09:47 PM
Replies: 52
Views: 1,037
Posted By FBinNY

All this fretting over crimping housing end caps...

All this fretting over crimping housing end caps is pointless.

While there's no reason you can't crimp them on should you want to, there's also no reason you need to.

Housings are in...
Forum: Bicycle Mechanics
06-12-24, 09:27 PM
Replies: 14
Views: 423
Posted By FBinNY

I've been preaching against axial preload on...

I've been preaching against axial preload on radial bearings for about half a century.

I wouldn't consider your issue a design flaw, it's more like a communication issue.

Since you're aware if...
Forum: Bicycle Mechanics
06-12-24, 09:15 PM
Replies: 16
Views: 231
Posted By FBinNY

Unless there's something special that happened...

Unless there's something special that happened between 2012 & 2013, someone is simply too lazy to make an effort for you.

I, for one, don't believe they don't have records for earlier wheels.
...
Forum: Bicycle Mechanics
06-12-24, 04:28 PM
Replies: 43
Views: 25,050
Posted By FBinNY

At some point, discussion on a zombie thread...

At some point, discussion on a zombie thread becomes pointless.

The OP has been fairly active on BF in the intervening decade, so I'm sure he got it sorted.

It's time to let sleeping zombies...
Forum: Bicycle Mechanics
06-12-24, 02:13 PM
Replies: 21
Views: 482
Posted By FBinNY

When you're ready, here's a tip that will help. ...

When you're ready, here's a tip that will help.

I always start by confirming the limit setting. I do this by ignoring the shift lever and shifting by pulling the bare wire away from the down...
Forum: Bicycle Mechanics
06-12-24, 02:08 PM
Replies: 49
Views: 5,397
Posted By FBinNY

Short answer is yes. In a lighty loaded ball...

Short answer is yes. In a lighty loaded ball bearing, the viscous drag of the grease will significantly exceed the friction of the rolling elements.

But it barely matters anyway. When comparing...
Forum: Bicycle Mechanics
06-12-24, 02:04 PM
Replies: 5
Views: 145
Posted By FBinNY

If there was a bit of a press force on either...

If there was a bit of a press force on either side, odds are that there's residual side load. Often, when pressing paired bearings, some tapping back and forth is needed to relieve the load left by...
Forum: Advocacy & Safety
06-11-24, 09:36 PM
Replies: 16
Views: 662
Posted By FBinNY

It's actually worse than it seems. This...

It's actually worse than it seems.
This happened in Florida, a "stand your ground" state. I wonder if the moron even considered that the cyclist might have been within his rights to shoot him dead.
Forum: Bicycle Mechanics
06-11-24, 02:20 PM
Replies: 6
Views: 210
Posted By FBinNY

If you were a doctor, and a patient came in...

If you were a doctor, and a patient came in saying, "I feel lousy", would you start off by writing a prescription?

We have nowhere enough info to offer meaningful advise about what may be anything...
Forum: Bicycle Mechanics
06-11-24, 01:37 PM
Replies: 21
Views: 482
Posted By FBinNY

Read some tutorials, and/or watch a few videos...

Read some tutorials, and/or watch a few videos until you understand how cable length and limit screws each affect derailleur position. Very quickly, the derailleur hangs on the cable, in a way...
Forum: Bicycle Mechanics
06-11-24, 01:28 PM
Replies: 1
Views: 145
Posted By FBinNY

You definitely need a longer bolt to reach into...

You definitely need a longer bolt to reach into the crank arm. Standard chainring bolts are not quite long enough to span the chainring/crank spider sandwich, so obviously can't extend beyond and...
Forum: Bicycle Mechanics
06-10-24, 04:39 PM
Replies: 18
Views: 511
Posted By FBinNY

Thanks for including a location in your profile. ...

Thanks for including a location in your profile.

I was wondering who would consider 6:22PM EDT (GMT-4) as bedtime.
Forum: Bicycle Mechanics
06-10-24, 04:28 PM
Replies: 21
Views: 558
Posted By FBinNY

I agree that the routing is incorrect, but that's...

I agree that the routing is incorrect, but that's not causing your sliding problem.

The real cause is housing pushing it upwards owing to cable tension. This was s common problem BITD when...
Forum: Bicycle Mechanics
06-10-24, 04:19 PM
Replies: 52
Views: 1,037
Posted By FBinNY

The tools most mentioned are fine for the tips...

The tools most mentioned are fine for the tips crimped onto the end of inner wires.

Fitting an end cap to housing calls for a tool that forms a full circle crimp. I've seen and used tools...
Forum: Bicycle Mechanics
06-10-24, 03:12 PM
Replies: 20
Views: 443
Posted By FBinNY

Let's not get into an ebay debate here. Yes,...

Let's not get into an ebay debate here. Yes, there are sometimes (often?) incorrect photos in listings, but any search will bring up plenty of images from multiple sources, so the OP can rely on his...
Forum: Bicycle Mechanics
06-09-24, 11:22 PM
Replies: 18
Views: 511
Posted By FBinNY

They'll work fine, but might be jittery for a...

They'll work fine, but might be jittery for a while.
Forum: Bicycle Mechanics
06-09-24, 09:38 PM
Replies: 21
Views: 558
Posted By FBinNY

Coarse compound might be enough. Also, depending...

Coarse compound might be enough. Also, depending on the details, you can usually buy yourself some room by filing from where the clamp is touching.
Forum: Bicycle Mechanics
06-09-24, 09:27 PM
Replies: 21
Views: 558
Posted By FBinNY

I prevent clamp slippage with coarse lapping...

I prevent clamp slippage with coarse lapping compound.

Apply to the area, slide the loosened clamp over the compound, and when tightened the grit binds the clamp to the tube.
Forum: Advocacy & Safety
06-09-24, 03:41 PM
Replies: 16
Views: 662
Posted By FBinNY

Obviously, if you can come abreast of a vehicle,...

Obviously, if you can come abreast of a vehicle, you can simply continue and complete the pass.

There's no excuse for this.

Unfortunately, devising a fitting punishment, or figuring how to...
Forum: Advocacy & Safety
06-08-24, 07:34 PM
Replies: 3
Views: 365
Posted By FBinNY

There's not enough info to form any opinion about...

There's not enough info to form any opinion about this specific event. One report mentioned the rider coming off the sidewalk, so it might be an all to familiar right hook situation


One thing...
Forum: Bicycle Mechanics
06-08-24, 04:58 PM
Replies: 3
Views: 197
Posted By FBinNY

Possibly it's one of the bunch offered on ebay.

Possibly it's one of the bunch offered on ebay.
Forum: Bicycle Mechanics
06-08-24, 04:29 PM
Replies: 21
Views: 558
Posted By FBinNY

Maybe this will help connect the dots. ...

Maybe this will help connect the dots.

Generally, it's bad shop practice to braze a closed chamber, because heat expands the trapped air which will vent through the joint, blowing hot brass with...
Forum: Advocacy & Safety
06-08-24, 01:44 PM
Replies: 18
Views: 886
Posted By FBinNY

Simply s case of a jerk being a jerk and nothing...

Simply s case of a jerk being a jerk and nothing more.

I don't believe in group or identity politics, so (to me) this is simply a jerk who happens to be riding a bike.

Not my issue, and doesn't...
Forum: Bicycle Mechanics
06-08-24, 01:37 PM
Replies: 20
Views: 443
Posted By FBinNY

11s Deore XT alone gets you close to home. If...

11s Deore XT alone gets you close to home. If you search that you'll see 2 versions, 8000 & 8130. However they're different enough that simply looking at the image should tell you.
Forum: Bicycle Mechanics
06-08-24, 01:31 PM
Replies: 6
Views: 210
Posted By FBinNY

I don't know what pedals you have, but if the...

I don't know what pedals you have, but if the balls are replaceable, then the play can be adjusted out. Otherwise the pedals are probably unserviceable, which is very common these days.
Forum: Bicycle Mechanics
06-08-24, 12:02 AM
Replies: 21
Views: 558
Posted By FBinNY

That's a fairly unique construction. I don't...

That's a fairly unique construction. I don't remember ever seeing a brazed frame with the seat and down tubes closed off this way. Generally both are open because for a number of reasons, including...
Forum: Bicycle Mechanics
06-07-24, 07:23 PM
Replies: 21
Views: 558
Posted By FBinNY

No. Water almost always enters via the seat...

No. Water almost always enters via the seat tube. On older bikes with open top seatposts, it's very easy. The rear wheel sprays up against the saddle, where it bounces off and goes straight down...
Forum: Bicycle Mechanics
06-07-24, 06:33 PM
Replies: 21
Views: 558
Posted By FBinNY

What's done is done so drain and air dry the...

What's done is done so drain and air dry the frame. If there's rust, stabilize it with Naval Jelly, or similar product. Wash it out, dry and use a stick to push an oily rag down the seat tube to...
Forum: Bicycle Mechanics
06-07-24, 03:56 AM
Replies: 22
Views: 569
Posted By FBinNY

Is it not equally obvious while installed?

Is it not equally obvious while installed?
Forum: Bicycle Mechanics
06-06-24, 11:54 PM
Replies: 6
Views: 909
Posted By FBinNY

Before going further, I want to confirm that...

Before going further, I want to confirm that you're adjusting in the correct direction.

Tightening the lower pivot tension screw winds the cage tighter thereby pulling the RD forward and up. You...
Forum: Bicycle Mechanics
06-06-24, 10:16 PM
Replies: 64
Views: 1,989
Posted By FBinNY

I agree that there aren't enough words to prevent...

I agree that there aren't enough words to prevent some murkiness. Generally, we let context drive the meaning, which is OK when were sure everyone is on the same page, but can be a source of...
Forum: Bicycle Mechanics
06-06-24, 09:25 PM
Replies: 64
Views: 1,989
Posted By FBinNY

Only because you asked..... Minor quibbles,...

Only because you asked.....
Minor quibbles, mainly about sloppy terminology.

For example, "elasticity" is an inherent property of a material, unrelated to wire gauge or length. I know what you...
Forum: Bicycle Mechanics
06-06-24, 06:12 PM
Replies: 24
Views: 665
Posted By FBinNY

Unlike the pads, steel rotors do not react with...

Unlike the pads, steel rotors do not react with or absorb oils. So I would expect that cleaning them adequately wouldn't be difficult. You want a zero residue solvent, rather than one that leaves...
Forum: Bicycle Mechanics
06-06-24, 02:25 PM
Replies: 35
Views: 1,101
Posted By FBinNY

My all purpose household scissors (shears). ...

My all purpose household scissors (shears). They're handy and work so well that I've never had to consider if there were something better. Since rubber is stretchy, sharpness is key.
Forum: Bicycle Mechanics
06-06-24, 01:01 PM
Replies: 64
Views: 1,989
Posted By FBinNY

I'm not going to post a wheel engineering thesis...

I'm not going to post a wheel engineering thesis here, but at few points.

1- a wheel going out of true means a dimensional change someplace. That implies that something was strained beyond yield....
Forum: Bicycle Mechanics
06-06-24, 12:45 PM
Replies: 38
Views: 1,050
Posted By FBinNY

Some possibilities. First of all a single fall...

Some possibilities. First of all a single fall is highly unlikely to break multiple parts, especially internal hub parts. So, either multiple parts were worn all along, and damaging the link box,...
Forum: Bicycle Mechanics
06-06-24, 10:56 AM
Replies: 22
Views: 569
Posted By FBinNY

Use your eyes. If there's a flange it'll be...

Use your eyes. If there's a flange it'll be visible, as is the one in the photo of your BB. If there's no visible flange it's because there is none.

BBs with flanges have them as a reference...
Forum: Bicycle Mechanics
06-06-24, 02:42 AM
Replies: 22
Views: 569
Posted By FBinNY

One of my favorite (mental) tools when taking...

One of my favorite (mental) tools when taking apart the unfamiliar is to consider how it would have gone together.

So, here you have two cups, one flanged one not. If you stop to think, you'd...
Forum: Advocacy & Safety
06-05-24, 05:25 PM
Replies: 26
Views: 1,285
Posted By FBinNY

Yes, the regulations only apply to new, as sold. ...

Yes, the regulations only apply to new, as sold. However, I was responding to the prior post saying that various e-bikes had inadequate brakes, which I took to imply a design/manufacturing rather...
Forum: Bicycle Mechanics
06-05-24, 04:52 PM
Replies: 15
Views: 369
Posted By FBinNY

Actually, not that complicated if you let the...

Actually, not that complicated if you let the bike tell you.

If one fits you need it. If one doesn't fit you can't use it.
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