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Search: Posts Made By: FBinNY
Showing results 1 to 50 of 1000
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Forum: Bicycle Mechanics
06-07-24, 07:23 PM
Replies: 7
Views: 148
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: 7
Views: 148
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: 461
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: 856
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: 51
Views: 1,256
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: 51
Views: 1,256
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: 23
Views: 473
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: 29
Views: 571
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: 51
Views: 1,256
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: 919
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: 461
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: 461
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: 25
Views: 1,009
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: 290
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.
Forum: Bicycle Mechanics
06-05-24, 02:24 PM
Replies: 22
Views: 6,846
Posted By FBinNY

You get notified of the first post after your...

You get notified of the first post after your last post. So, if you were notified on an old thread, but did not post anew, you wouldn't get subsequent notifications.

FWIW- I'm not 100% sure you...
Forum: Advocacy & Safety
06-05-24, 02:17 PM
Replies: 25
Views: 1,009
Posted By FBinNY

This is an interesting legal/liability question...

This is an interesting legal/liability question for the lawyers. If e-bikes are being sold as bicycles, then they should fall under CPSC guidelines for bicycles. (don't know if they're legally...
Forum: Bicycle Mechanics
06-05-24, 02:09 PM
Replies: 6
Views: 212
Posted By FBinNY

That's a user choice, not a mechanical question. ...

That's a user choice, not a mechanical question. I don't get involved in telling people how to spend their dough.
Forum: Bicycle Mechanics
06-05-24, 01:59 PM
Replies: 5
Views: 127
Posted By FBinNY

Yes, and no regarding ratchets. Both 3s and 5s...

Yes, and no regarding ratchets. Both 3s and 5s hubs have high gear and low gear ratchets (overrunning clutch). So, in higher gears the hub overruns the low gear ratchet, which is what you hear. ...
Forum: Bicycle Mechanics
06-05-24, 10:40 AM
Replies: 5
Views: 127
Posted By FBinNY

Easiest part first. The clicking is normal...

Easiest part first.

The clicking is normal because the hub has multiple ratchet (freewheel) units within. In higher gears, the hub is overrunning the lower gear ratchets which is what you hear. ...
Forum: Introductions
06-05-24, 01:46 AM
Replies: 4
Views: 427
Posted By FBinNY

Take a moment to update your profile to change...

Take a moment to update your profile to change country from USA to Germany.
Forum: Bicycle Mechanics
06-05-24, 01:35 AM
Replies: 38
Views: 919
Posted By FBinNY

That's a good thing for the OP because that's the...

That's a good thing for the OP because that's the most likely place to find the parts he needs.

To the OP.
Don't let language be an issue. Plenty of English spoken in Germany, and the b problem...
Forum: Bicycle Mechanics
06-05-24, 01:03 AM
Replies: 22
Views: 461
Posted By FBinNY

It's easy to remember if you're a bit contrary by...

It's easy to remember if you're a bit contrary by nature-------

Right is left, and left is right.
Forum: Advocacy & Safety
06-04-24, 07:28 PM
Replies: 106
Views: 3,211
Posted By FBinNY

I hope I'm up to the task. While I have no...

I hope I'm up to the task.

While I have no love for ILTB, I'm used to and appreciative of his presence here. If not for any other reason, he provides cover for me and others here who have...
Forum: Advocacy & Safety
06-04-24, 06:53 PM
Replies: 106
Views: 3,211
Posted By FBinNY

Everybody needs a Devil's advocate haunting their...

Everybody needs a Devil's advocate haunting their left shoulder.

While generally annoying, they often serve the very useful purpose of making one think.
Forum: Bicycle Mechanics
06-04-24, 06:49 PM
Replies: 42
Views: 1,501
Posted By FBinNY

No apology needed. I think people failed to...

No apology needed.

I think people failed to "see" my tongue firmly in my cheek when I posted "WHAT!!!!?", referencing the very idea of being away from the forum.
Forum: Bicycle Mechanics
06-04-24, 06:16 PM
Replies: 23
Views: 473
Posted By FBinNY

The OP described his oil on disc issue. We can...

The OP described his oil on disc issue. We can only take his word for it. There's no point arguing about how it got there, it's a where to go from here thread.

No problem with your disregreement...
Forum: Bicycle Mechanics
06-04-24, 05:07 PM
Replies: 42
Views: 1,501
Posted By FBinNY

what !!!!!!?

what !!!!!!?
Forum: Bicycle Mechanics
06-04-24, 04:37 PM
Replies: 38
Views: 919
Posted By FBinNY

OK so you can ignore and all the other posts...

OK so you can ignore and all the other posts about derailleurs or bent hangers.

For this and future reference you have an 5 speed IGH (aka internal gear) hub.

These shift via a pin or rod that...
Forum: Bicycle Mechanics
06-04-24, 02:22 PM
Replies: 23
Views: 473
Posted By FBinNY

I don't disagree. I was simply offering the OP a...

I don't disagree. I was simply offering the OP a Hail Mary option.

As I pointed out pad commination is one of my main objections to disc brakes. IMO, given the limited benefits and along with...
Forum: Advocacy & Safety
06-04-24, 01:50 PM
Replies: 106
Views: 3,211
Posted By FBinNY

You're hinting at a safety paradox that I've...

You're hinting at a safety paradox that I've observed over the years. Sometimes what seems dangerous, ends up being safer, while what seems safe isn't. This is because people don't operate by a...
Forum: Bicycle Mechanics
06-04-24, 01:35 PM
Replies: 23
Views: 473
Posted By FBinNY

One of my pet objections to disc brakes is that...

One of my pet objections to disc brakes is that it's so easy to contaminate the pads, especially with oils. Once they're damaged this way, it can be hard to correct.

If you'd rather not replace...
Forum: Bicycle Mechanics
06-04-24, 12:31 PM
Replies: 44
Views: 1,392
Posted By FBinNY

Sometimes engineering decisions turn on small...

Sometimes engineering decisions turn on small details. Possibly they went with SS as a form of neglect insurance, especially for all weather users. Or they may have used SS so the balls took more...
Forum: Bicycle Mechanics
06-04-24, 11:27 AM
Replies: 23
Views: 412
Posted By FBinNY

There were various square taper 10s cranks dating...

There were various square taper 10s cranks dating from 2001 or so. The difference between 10s and 11-12s is small enough to have very minimal performance issues.
Forum: Bicycle Mechanics
06-04-24, 11:00 AM
Replies: 38
Views: 919
Posted By FBinNY

Agree that a bent hanger is the most likely...

Agree that a bent hanger is the most likely issue, though not the only possibility.

DO NOT IGNORE THIS because if it is a bent hanger, you're at risk of putting the RD into the spokes.

Given...
Forum: Bicycle Mechanics
06-03-24, 11:44 PM
Replies: 51
Views: 1,256
Posted By FBinNY

OTOH believing myths is not good engineering. ...

OTOH believing myths is not good engineering.

Instead of pointless argument, I'll ask the same question I used to ask students to think about during when I taught wheelbuilding.

What, EXACTLY,...
Forum: Bicycle Mechanics
06-03-24, 10:52 PM
Replies: 11
Views: 301
Posted By FBinNY

Though I likely won't ever adopt tubeless for...

Though I likely won't ever adopt tubeless for road, it seems that leakage under the rim strip is an already solved non-issue. So I wouldn't factor that in the decision.
Forum: Bicycle Mechanics
06-03-24, 10:43 PM
Replies: 51
Views: 1,256
Posted By FBinNY

It's a question of outlook and, ultimately,...

It's a question of outlook and, ultimately, process.

Imagine you have teach someone how to drive. You'll speak of staying in the lane. So would you have them open the door, look down and focus on...
Forum: Bicycle Mechanics
06-03-24, 10:07 PM
Replies: 51
Views: 1,256
Posted By FBinNY

If you came to me, I'd build you a pair using...

If you came to me, I'd build you a pair using 2.3/1.8/2.0mm butted spokes on the right and 2.0/1.6/2.0 or similar on the left.

I also would tension them far lower than is trendy these days. Wheels...
Forum: Bicycle Mechanics
06-03-24, 09:55 PM
Replies: 51
Views: 1,256
Posted By FBinNY

+1 there's enough there to build strong durable...

+1 there's enough there to build strong durable wheels. As mentioned earlier, BITD I'd build touring tandem wheels with 36 2mm DB spokes and lighter rims. These were good enough to go coast to coast...
Forum: Bicycle Mechanics
06-03-24, 10:46 AM
Replies: 51
Views: 1,256
Posted By FBinNY

While the last sentence is true, the rest of it...

While the last sentence is true, the rest of it is a myth.

The importance of rims being perfect depends on the nature of any bends, and the rigidity of the rim vs. the strength of the spokes. ...
Forum: Bicycle Mechanics
06-03-24, 08:54 AM
Replies: 16
Views: 383
Posted By FBinNY

It's time to stop replacing parts and focusing on...

It's time to stop replacing parts and focusing on finding the actual issue.

For example, (though it may apply here) replacing hangers is not the same as aligning them, because they aren't...
Forum: Bicycle Mechanics
06-03-24, 08:47 AM
Replies: 8
Views: 289
Posted By FBinNY

How many moving parts do you not lube? Lubing...

How many moving parts do you not lube?
Lubing chains has nothing to do with derailleurs, or even bicycles. ALL chains need to be lubricated because a chain is basically a bunch of plain bearings...
Forum: Bicycle Mechanics
06-03-24, 08:22 AM
Replies: 6
Views: 212
Posted By FBinNY

I wonder if you're going at this backwards. ...

I wonder if you're going at this backwards.

You bought Khamsin wheels, with a freehub to accept Campagnolo 11s cassettes. Now you want to change to Shimano. So forget everything related to...
Forum: Bicycle Mechanics
06-02-24, 09:10 PM
Replies: 16
Views: 419
Posted By FBinNY

The 3 specs are independent of each other. Min,...

The 3 specs are independent of each other. Min, Max, & total.

Total capacity refers to the total chain take up with small/small vs. Big/Big. So, since you're using 23t just in the cassette, this...
Forum: Bicycle Mechanics
06-02-24, 07:19 PM
Replies: 16
Views: 419
Posted By FBinNY

Odds are that you can go with 11-34. There...

Odds are that you can go with 11-34.

There are things to consider first.

1- you're adding 3 teeth to the required take capacity, so look up your RD specs, and calculate to know.

2- the 34t...
Forum: Advocacy & Safety
06-02-24, 06:50 PM
Replies: 25
Views: 1,009
Posted By FBinNY

I'm of the school that there are no dangerous...

I'm of the school that there are no dangerous vehicles, only dangerous operators.

Don't get me wrong, some vehicles are less forgiving of operator error, or operate at speeds that make...
Forum: Bicycle Mechanics
06-02-24, 10:44 AM
Replies: 8
Views: 370
Posted By FBinNY

FWIW mounting wheels not fully seated in dropouts...

FWIW mounting wheels not fully seated in dropouts is fairly common. Especially when working with the bike in a repair stand.

Best practice is to mount wheels with bike on the floor, so gravity...
Forum: Advocacy & Safety
06-01-24, 10:32 PM
Replies: 106
Views: 3,211
Posted By FBinNY

Nobody and everybody. No details were given, so...

Nobody and everybody. No details were given, so there's no basis for judgement.

FWIW growing up in NYC where pedestrians routinely spill out into the streets, I learned how to ride among them,...
Forum: Commuting
06-01-24, 08:46 PM
Replies: 21
Views: 1,190
Posted By FBinNY

IME we're all different, both in how much we...

IME we're all different, both in how much we sweat under given conditions, and how smelly we get.

I'm like you in that I can't tolerate heat and sweat buckets. I'm used to going inside and being...
Forum: Bicycle Mechanics
06-01-24, 08:31 PM
Replies: 9
Views: 269
Posted By FBinNY

I guess I'm a mechanical optimist. I don't worry...

I guess I'm a mechanical optimist. I don't worry about frozen bolts until I actually find them.

OTOH, I have a sense of how much torque should be needed, and if/when I find more resistance than...
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