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Search: Posts Made By: KerryIrons
Showing results 1 to 50 of 279
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06-23-22, 03:26 PM
Replies: 7
Views: 159
Posted By KerryIrons

Nope. Back in the day essentially all BB cups...

Nope. Back in the day essentially all BB cups were steel as were essentially all frames. Grease was used on the threads for what you would expect: allow proper installation torque and prevent...
06-23-22, 02:55 PM
Replies: 21
Views: 394
Posted By KerryIrons

This is correct. Less tread rubber to deflect...

This is correct. Less tread rubber to deflect means lower hysteresis losses. It sometimes amazes me how people tend to draw the exact opposite conclusion of what the data show, and what logic...
06-21-22, 03:44 PM
Replies: 14
Views: 342
Posted By KerryIrons

A way to make helmets quieter without an "add-on"...

A way to make helmets quieter without an "add-on" device is to simply twist the straps that go in front of your ear. This requires unthreading the straps, twist, and rethread. It is a significant...
06-19-22, 05:55 PM
Replies: 53
Views: 988
Posted By KerryIrons

Bingo! Just because somebody wants 140 psi...

Bingo! Just because somebody wants 140 psi there's no reason that their friends should let them do that unless they are racing on the track.
06-19-22, 05:53 PM
Replies: 12
Views: 256
Posted By KerryIrons

I've been using grease for 50 years and have...

I've been using grease for 50 years and have built well over 100 wheels. Thinking too much about this is a waste of time.
06-19-22, 05:43 PM
Replies: 3
Views: 104
Posted By KerryIrons

Upper limit screw set too far out? It should be...

Upper limit screw set too far out? It should be adjusted so that the derailleur cage just clears the chain (no rubbing) when on the big chain ring and the smallest rear cog. You might have to...
06-19-22, 05:22 PM
Replies: 5
Views: 210
Posted By KerryIrons

By rotated do you mean spinning like when you are...

By rotated do you mean spinning like when you are riding on the road, or rotated as in swapping front and rear. No reason for the latter. Most likely a fresh shot of sealant would be in order but...
06-17-22, 11:41 AM
Replies: 29
Views: 612
Posted By KerryIrons

The general rule for building a good wheel is...

The general rule for building a good wheel is "never" use straight gauge spokes. As far as using different gauge for left and right, it won't make much difference. Certainly not something to chase...
06-17-22, 11:24 AM
Replies: 7
Views: 178
Posted By KerryIrons

Peugeot did not make bike parts, so there is no...

Peugeot did not make bike parts, so there is no such thing as a "Peugeot pulley." Also, you don't have to match the number of teeth on the current jockey wheels.
06-15-22, 10:31 AM
Replies: 20
Views: 491
Posted By KerryIrons

Perhaps the math goes like this: 60 increase (140...

Perhaps the math goes like this: 60 increase (140 vs 80) compared to 80. 60 is 75% of 80.
06-13-22, 02:48 PM
Replies: 24
Views: 487
Posted By KerryIrons

ATF? Alcohol Tobacco & Firearms? Not familiar...

ATF? Alcohol Tobacco & Firearms? Not familiar with that abbreviation for a solvent. What is it?
06-13-22, 01:58 PM
Replies: 15
Views: 364
Posted By KerryIrons

Yes, but why the "may" question. Just measure...

Yes, but why the "may" question. Just measure the darn thing and know if it is beyond 0.5% elongation. If it isn't, then the chain and new cassette cogs will wear in pretty quickly and likely the...
06-13-22, 09:57 AM
Replies: 86
Views: 1,610
Posted By KerryIrons

Do what you like, but it is far more cost...

Do what you like, but it is far more cost efficient to ride the heck out of this bike and save your money. If things do wear out before you are ready to purchase the next bike, then upgrade the worn...
06-13-22, 09:46 AM
Replies: 11
Views: 342
Posted By KerryIrons

Doing the math, riding 1 mph faster across this...

Doing the math, riding 1 mph faster across this route would shave about 6 minutes. But riding 1 mph faster would require roughly 12% more power, and that is a BIG number. So it is not surprising...
06-11-22, 03:33 PM
Replies: 20
Views: 400
Posted By KerryIrons

If you want to treat every ride like a race, then...

If you want to treat every ride like a race, then you should work on your spin. Watch any race and check out the cadence of the racers. 30 mph in a 52/11 is 82 rpm. You can grind away all you...
06-11-22, 02:50 PM
Replies: 14
Views: 391
Posted By KerryIrons

Yup. 7-Up is sugar water. Acetone is not a...

Yup. 7-Up is sugar water. Acetone is not a great solvent for sugar. But water sure is.
06-11-22, 02:44 PM
Replies: 8
Views: 204
Posted By KerryIrons

Lots of good advice in this thread. The question...

Lots of good advice in this thread. The question none of us can answer is how good the seals are on your bearings. With good seals, you probably would have no issues. With poor seals you might...
06-11-22, 02:39 PM
Replies: 5
Views: 180
Posted By KerryIrons

Yup. If your chain is on the tight side now, add...

Yup. If your chain is on the tight side now, add 4 links (2 complete pairs of links for 2 inches). Otherwise add 2 links (one pair of links for 1 inch). For many years, Campy recommended the...
06-11-22, 02:30 PM
Replies: 20
Views: 400
Posted By KerryIrons

100 rpm (which most experienced riders would NOT...

100 rpm (which most experienced riders would NOT call "spun out") is nearly 37 mph in that gear. If you are hitting that speed on a downhill, you will be faster in a tight tuck than pedaling. ...
06-11-22, 02:24 PM
Replies: 26
Views: 641
Posted By KerryIrons

The driver buzzed you. On purpose. Either that...

The driver buzzed you. On purpose. Either that or is completely incompetent. I yelled at a driver today too. I was on a bike path and while looking the opposite direction, she pulled right across...
06-11-22, 02:13 PM
06-11-22, 02:03 PM
Replies: 3
Views: 148
Posted By KerryIrons

You need to explain what the motions are that...

You need to explain what the motions are that cause pain. If any vertical movement is an issue, then the place to start is with a suspension post. There are many on the market. The next step from...
06-09-22, 11:08 AM
Replies: 5
Views: 186
Posted By KerryIrons

Instead of looking for a FD with a 31.8 clamp,...

Instead of looking for a FD with a 31.8 clamp, get a separate 31.8 clamp and then a braze-on type FD.
06-09-22, 10:55 AM
Replies: 11
Views: 311
Posted By KerryIrons

I highly doubt that road salt will have any...

I highly doubt that road salt will have any effect on rubber, particularly rubber that uses carbon black filler and certainly has UV stabilizers and free radical scavengers in the compound.
06-07-22, 06:29 PM
Replies: 5
Views: 221
Posted By KerryIrons

This ^^ Times ten.

This ^^ Times ten.
06-05-22, 04:52 PM
Replies: 6
Views: 298
Posted By KerryIrons

You could have fixed that stiff link by simply...

You could have fixed that stiff link by simply flexing the chain back and forth at the link to loosen it up. Keep the old chain as a replacement when your new one elongates 1/16" out of 24 links...
06-05-22, 04:47 PM
Replies: 7
Views: 228
Posted By KerryIrons

Price sounds quite high for a 20 year old bike. ...

Price sounds quite high for a 20 year old bike. If the aluminum is not corroded and you can see no cracks in the paint after a very careful visual inspection, it's probably OK. Of course you would...
06-05-22, 04:38 PM
Replies: 15
Views: 565
Posted By KerryIrons

This flies right in the face of the very...

This flies right in the face of the very satisfying experience of going to a shop, checking out different bikes, maybe riding a couple, getting advice, and then putting that brand new machine in the...
06-04-22, 07:36 AM
Replies: 8
Views: 231
Posted By KerryIrons

Most wobble to some degree. In my experience,...

Most wobble to some degree. In my experience, Campy freehubs do not wobble.
06-04-22, 07:34 AM
Replies: 8
Views: 290
Posted By KerryIrons

Thinner tube is not much of an increase in flat...

Thinner tube is not much of an increase in flat likelihood. Thinner tube will mean slightly faster pressure loos.
06-04-22, 07:31 AM
Replies: 3
Views: 189
Posted By KerryIrons

You always install the wheel by putting the chain...

You always install the wheel by putting the chain on the smallest cassette cog.
06-04-22, 07:29 AM
Replies: 6
Views: 298
Posted By KerryIrons

Assuming that by "every four pedal strokes" you...

Assuming that by "every four pedal strokes" you mean two left and two right, it is most likely a single chain link that needs lube and that your number of chain links equals double the number of...
06-04-22, 07:09 AM
Replies: 60
Views: 1,913
Posted By KerryIrons

Unfortunately these tests are done on steel...

Unfortunately these tests are done on steel rollers, not on the road. Results can be skewed by casing compliance. Rene Herse tires are not cheap, but they have a great reputation for lowest on-road...
06-04-22, 07:02 AM
Replies: 48
Views: 1,307
Posted By KerryIrons

That may be how you think of speed wobble, but...

That may be how you think of speed wobble, but the general term refers to the frame going into resonance like happened to the OP. This has been discussed at great length in the research. The...
06-01-22, 10:06 AM
Replies: 16
Views: 424
Posted By KerryIrons

Be aware that just because somebody else likes a...

Be aware that just because somebody else likes a saddle doesn't mean it will work for you. I used to ride with two guys who constantly complained about their saddles, so they swapped. They both...
06-01-22, 10:03 AM
Replies: 14
Views: 471
Posted By KerryIrons

Surprising that you had two golf balls one day...

Surprising that you had two golf balls one day and no swelling the next, but it's good news. If they had persisted you definitely would be seeing a doctor.
06-01-22, 09:59 AM
Replies: 34
Views: 942
Posted By KerryIrons

No, because some stores are closed on Sundays.

No, because some stores are closed on Sundays.
06-01-22, 09:52 AM
Replies: 11
Views: 385
Posted By KerryIrons

Yes, now the League of American Bicyclists

Yes, now the League of American Bicyclists
05-30-22, 10:06 AM
Replies: 83
Views: 1,468
Posted By KerryIrons

How about high school chemistry? As noted by...

How about high school chemistry? As noted by another poster, PV = nRT. All you need to do is ratio the temperatures (in either Kelvin or Rankine) to get the % pressure increase. Kelvin = celcius...
05-30-22, 10:01 AM
Replies: 6
Views: 212
Posted By KerryIrons

Yes, and even if you bent the cage, you probably...

Yes, and even if you bent the cage, you probably can straighten it out with a little care and it will work as good as new.
05-30-22, 09:57 AM
Replies: 83
Views: 1,468
Posted By KerryIrons

If we assume you inflated to 90 psi at 70F, then...

If we assume you inflated to 90 psi at 70F, then if the temp rose to 91 F you would see 95 psi. Of course this assumes that your pressure gauge is accurate, precise, and reproducible so that you...
05-30-22, 09:49 AM
Replies: 22
Views: 398
Posted By KerryIrons

Bingo. I never understood why they put those...

Bingo. I never understood why they put those "centering screws" when it is such a straightforward thing to center it by hand. Sometimes you need to loosen the attachment bolt a little. I keep my...
05-30-22, 09:47 AM
Replies: 23
Views: 521
Posted By KerryIrons

Maybe I'm not understanding, but my first guess...

Maybe I'm not understanding, but my first guess would be that the stem slipped on the steerer tube.
05-30-22, 09:43 AM
Replies: 34
Views: 942
Posted By KerryIrons

6 Saturdays a week baby! Be sure you find...

6 Saturdays a week baby! Be sure you find something to keep you occupied. I have greatly enjoyed not going to work!
05-30-22, 09:42 AM
Replies: 15
Views: 426
Posted By KerryIrons

Yes. Some FWs expose the body when the cogs come...

Yes. Some FWs expose the body when the cogs come off, but looking at this one I see the second lock ring that as somebody stated, needs to be unscrewed with a punch.
05-30-22, 09:37 AM
Replies: 34
Views: 912
Posted By KerryIrons

Hard to imagine where the lead might be. It...

Hard to imagine where the lead might be. It hasn't been in paint in a long time and the rest of the helmet is plastic. Either way, unless you plan to eat parts of the helmet, any lead is not an...
05-30-22, 09:34 AM
Replies: 30
Views: 821
Posted By KerryIrons

Like the others, I vote for the Lezyne Road...

Like the others, I vote for the Lezyne Road Drive. The only issue I have had with mine is that I neglected to grease the threads on the hose where it screws into the pump body. I discovered the...
05-30-22, 09:28 AM
Replies: 14
Views: 471
Posted By KerryIrons

Do you have actual swelling or is it just sore to...

Do you have actual swelling or is it just sore to the touch? Is the skin abraded? Different answers depending on the details of your condition.But for general saddle comfort and adjustment: there...
05-30-22, 09:13 AM
Replies: 11
Views: 385
Posted By KerryIrons

Used to get them at LAW rallies and Tandem...

Used to get them at LAW rallies and Tandem rallies. I have a 1993 LAW rally patch pinned to my bulletin board. People used to cover their windbreakers with them. Never saw the point; they were...
05-30-22, 09:06 AM
Replies: 3
Views: 150
Posted By KerryIrons

Think hard before you do this. Lots of details...

Think hard before you do this. Lots of details to keep track of and it's possible that the bike was designed for flat bars and that geometry will be off with drop bars. The amount you spend and the...
Showing results 1 to 50 of 279
 


 
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