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Search: Posts Made By: sweeks
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09-27-22, 06:28 AM
Replies: 151
Views: 10,247
Posted By sweeks

Rims are wear items on bikes with rim brakes...

Rims are wear items on bikes with rim brakes depending on mileage and weather conditions. A different order of magnitude, but they can wear out.
...
09-25-22, 03:17 PM
Replies: 20
Views: 349
Posted By sweeks

Hmmm... not sure I agree. However, it does seem...

Hmmm... not sure I agree. However, it does seem to be one of the most difficult-to-understand concepts in bicycling!
09-25-22, 01:54 PM
Replies: 20
Views: 349
Posted By sweeks

Well, this *is* an important concept in the...

Well, this *is* an important concept in the servicing of hubs, but... yeah... WTF? :D
09-25-22, 01:22 PM
Replies: 13
Views: 278
Posted By sweeks

Has the bike been ridden in the winter, when...

Has the bike been ridden in the winter, when there might be salt residue on the roads? It certainly does look like corrosion.
09-25-22, 12:29 PM
Replies: 22
Views: 352
Posted By sweeks

50 years ago I heard wheels like those referred...

50 years ago I heard wheels like those referred to as being "potato chipped". In my college days when I had a lot of math I thought the shape most similar to a potato chipped wheel was the Hyperbolic...
09-25-22, 10:05 AM
Replies: 20
Views: 302
Posted By sweeks

I bought a nice SET...

I bought a nice SET...
09-25-22, 09:03 AM
Replies: 20
Views: 349
Posted By sweeks

Added an important step to minimize a subsequent...

Added an important step to minimize a subsequent flat. :innocent:
09-25-22, 05:37 AM
Replies: 10
Views: 212
Posted By sweeks

Is it possible that things are worn and/or out of...

Is it possible that things are worn and/or out of adjustment?
09-25-22, 05:31 AM
Replies: 22
Views: 352
Posted By sweeks

Flip the wheel.

Flip the wheel.
09-24-22, 07:13 PM
Replies: 7
Views: 183
Posted By sweeks

The gritty feeling caused by excessively tight...

The gritty feeling caused by excessively tight bearings would be easily felt with the wheel off the bike and the axle turned by hand, but the bearings would have to be *super* tight for this to be...
09-24-22, 03:50 PM
Replies: 15
Views: 207
Posted By sweeks

Could some of the "spherical" washers used for...

Could some of the "spherical" washers used for brake shoes be adapted for this application? The bolt diameter might be too small though. Just a thought/
09-17-22, 04:22 PM
Replies: 44
Views: 2,165
Posted By sweeks

I just bought one of these and am in the process...

I just bought one of these and am in the process of installing it. :D
Hope to report good performance!
09-11-22, 04:28 PM
Replies: 6
Views: 232
Posted By sweeks

For many years I've been using "official" Nexus...

For many years I've been using "official" Nexus grease (LIKE THIS...
Forum: Commuting
09-11-22, 03:11 PM
Replies: 74
Views: 1,608
Posted By sweeks

I've just passed the 20-year mark commuting to...

I've just passed the 20-year mark commuting to work year-'round in Chicago. My commute would be 50 miles each way if I rode all the way, and I've done this a couple times just to be able to say I did...
09-10-22, 09:06 PM
Replies: 16
Views: 288
Posted By sweeks

Sorry... I don't have 30 years' experience as a...

Sorry... I don't have 30 years' experience as a mechanic. :innocent:
09-10-22, 06:32 PM
Replies: 16
Views: 288
Posted By sweeks

As you may have noticed, I was not advocating for...

As you may have noticed, I was not advocating for the springs to be installed backwards. However, installing them backwards may not always result in problems as my images showed. I see, from the...
09-10-22, 03:15 PM
Replies: 16
Views: 288
Posted By sweeks

As you indicated, they wouldn't... unless...

As you indicated, they wouldn't... unless something else were amiss. I'm wondering if the hub has been taken apart and reassembled with one end not having enough axle protruding beyond the locknut to...
09-04-22, 05:51 PM
Replies: 27
Views: 1,135
Posted By sweeks

SInce the "Proof of Concept" worked so well, I...

SInce the "Proof of Concept" worked so well, I splurged a bit and installed a Rivendell thumb shifter. I have to give major props to Rivendell (Vince), who looked at an image of the set-up that...
09-04-22, 05:09 PM
Replies: 6
Views: 223
Posted By sweeks

Please post the follow-up. "Inquiring minds",...

Please post the follow-up. "Inquiring minds", etc... :innocent:
09-04-22, 08:36 AM
Replies: 10
Views: 305
Posted By sweeks

Thanks, Andy! There are always more reasons than...

Thanks, Andy! There are always more reasons than my limited experience can account for. :o
09-04-22, 06:40 AM
Replies: 10
Views: 305
Posted By sweeks

Andy always gives good advice! Before you...

Andy always gives good advice!
Before you purchase a new seatpost, it might be a good idea to take the bike to a shop that has a seatpost sizing gauge. Then you'll know if a 26.2mm post is the right...
09-03-22, 07:23 PM
Replies: 12
Views: 308
Posted By sweeks

This ^^. Aluminum is pretty strong under...

This ^^.
Aluminum is pretty strong under compressive loading; it's alternation between compression and tension that causes cyclic fatigue. I've seen this in several aluminum frames on folding...
09-03-22, 07:06 PM
Replies: 50
Views: 1,122
Posted By sweeks

If a replacement frame were not available and the...

If a replacement frame were not available and the *only* officially sanctioned remedy were to buy a new bike, I would do the following:
1) Obtain a seatpost that would extend well below the level of...
09-03-22, 08:30 AM
Replies: 10
Views: 305
Posted By sweeks

You could relieve the "close contact" with a file...

You could relieve the "close contact" with a file or Dremel disc, but if the seatpost stays put, why mess with it?
09-03-22, 07:07 AM
Replies: 12
Views: 451
Posted By sweeks

Heh... I'm a dentist, and can confidently predict...

Heh... I'm a dentist, and can confidently predict that the OP's plan carries little risk to his dentition. :innocent:
09-02-22, 09:42 PM
Replies: 12
Views: 308
Posted By sweeks

I would drill "crack stop" holes at the ends of...

I would drill "crack stop" holes at the ends of the cracks. At least 1/4" in diameter, or a little bigger. then keep an eye on them for further cracking.
The cracks are in the seat tube, not the...
08-31-22, 05:56 PM
Replies: 12
Views: 451
Posted By sweeks

I'm engaging my "Devil's Advocate" mode here. ...

I'm engaging my "Devil's Advocate" mode here.
Based on the information provided, it sounds like the seatpost clamp assembly is still attached to the seatpost. This means that the rider's weight...
08-31-22, 03:13 PM
Replies: 6
Views: 188
Posted By sweeks

I second this. I found (probably based on your...

I second this. I found (probably based on your earlier recommendation) a used copy in good shape for a reasonable price. It contains a great deal of interesting information....
08-30-22, 09:12 AM
Replies: 25
Views: 525
Posted By sweeks

I have one of THESE...

I have one of THESE (http://www.bikepro.com/products/chains/chaintools.shtml) ("Cyclo Rivoli") that I bought over 50 years ago. It works on all my bikes (9-speed maximum), but I see there's a newer...
08-30-22, 08:49 AM
Replies: 13
Views: 340
Posted By sweeks

I speculate (ie, without actual evidence) that...

I speculate (ie, without actual evidence) that chains on derailleur-based drivetrains on small-wheeled bikes may be subject to faster wear because of their closer proximity to the road surface and...
Forum: Folding Bikes
08-29-22, 04:27 PM
Replies: 64
Views: 1,355
Posted By sweeks

I've done many long rides, including a couple...

I've done many long rides, including a couple Centuries, on my Tern Verge S11i. No electric assistance necessary, and quite comfortable.
08-29-22, 03:12 PM
Replies: 10
Views: 289
Posted By sweeks

Also known as a "crown thickness gauge", as...

Also known as a "crown thickness gauge", as that's what they're used for by dentists. Ask me how I know! :D
FWIW, these are accurate to 0.1mm if they are reasonably well made.
08-26-22, 02:09 PM
Replies: 23
Views: 470
Posted By sweeks

I think just about any grade of motor oil should...

I think just about any grade of motor oil should be fine. Start out with a lower viscosity and see how you like the sound of the pawls. Personally, I like silent pawls and 30W motor oil works well.
08-26-22, 06:14 AM
Replies: 10
Views: 289
Posted By sweeks

Another thing to look for is a "thumping"...

Another thing to look for is a "thumping" sensation when the brake is applied. This means a portion of the rim is thin enough to expand under tire pressure; failure is imminent. Reduce the pressure,...
08-22-22, 06:49 PM
Replies: 6
Views: 223
Posted By sweeks

Many (many!) years ago I had a brief e-mail...

Many (many!) years ago I had a brief e-mail exchange with Sheldon Brown. My question was about whether the 4th ("middle") gear on a Nexus 7-speed hub is a direct drive, similar to the middle gear in...
08-21-22, 01:50 PM
Replies: 35
Views: 1,075
Posted By sweeks

Agree about Wippermann. I use KMC chains on my...

Agree about Wippermann. I use KMC chains on my folder, and it says not to re-use it but as the chain path involves only one front and one rear sprocket (IGH), I figure there's less likelihood of the...
08-21-22, 10:04 AM
Replies: 33
Views: 587
Posted By sweeks

Yes, my vise is in the workshop and my vice is in...

Yes, my vise is in the workshop and my vice is in the liquor cabinet! :D
08-21-22, 10:00 AM
Replies: 28
Views: 525
Posted By sweeks

I'm going to think about getting one of these. As...

I'm going to think about getting one of these. As I get older and my wrist arthritis progresses, I have trouble getting the Nokian studded tires on and off. I never have flats on these tires, and...
08-21-22, 07:51 AM
Replies: 7
Views: 166
Posted By sweeks

Roger, the OP mentions that it's a bike ridden by...

Roger, the OP mentions that it's a bike ridden by a child.
08-20-22, 03:18 PM
Replies: 33
Views: 587
Posted By sweeks

I recommend trying to stay away from vice....

I recommend trying to stay away from vice. :innocent:
The "driving the bus" method can be very effective though.
08-20-22, 01:50 PM
Replies: 14
Views: 1,602
Posted By sweeks

This morning I decided to look a little deeper...

This morning I decided to look a little deeper inside the hub, so I removed the "Jesus clip" and took the top gear module off for inspection. I didn't see any metal bits, worn gears or sticking or...
08-20-22, 07:56 AM
Replies: 7
Views: 197
Posted By sweeks

AARON GOSS...

AARON GOSS (http://www.rideyourbike.com/internalgears.shtml) has this to say about bearing play (speaking of the Alfine-11):
"The hub is adjusted the same as any cup-and-cone hub. However, to do an...
08-16-22, 08:10 PM
Replies: 108
Views: 3,886
Posted By sweeks

Sorry... I'm not trying to be a pest. Here's a...

Sorry... I'm not trying to be a pest. Here's a screen-shot of what I'm seeing on my computer. There's definitely something weird going on, because when I clicked on the "Quote" icon, the line I...
08-16-22, 07:34 PM
Replies: 108
Views: 3,886
Posted By sweeks

Post #11...

Post #11 (https://www.bikeforums.net/22605172-post11.html)
08-16-22, 07:16 PM
Replies: 142
Views: 3,521
Posted By sweeks

IMO, this depends in large part on the handlebar...

IMO, this depends in large part on the handlebar type. A bar-end mirror is harder to use on drop bars based on my experience. So I use a glasses-mounted mirror with these bars.
On a flat bar, a...
08-16-22, 07:08 PM
Replies: 108
Views: 3,886
Posted By sweeks

Er... "consolation". Sorry about the bikes...

Er... "consolation".
Sorry about the bikes though!
08-16-22, 07:02 PM
Replies: 23
Views: 455
Posted By sweeks

And usually in front of the fork... but not...

And usually in front of the fork... but not always!

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/verge_first_outing_2018_0514_feb8d1d0e585485a3726099077496376c4f3d026.jpg
Front...
08-16-22, 05:09 AM
Replies: 25
Views: 579
Posted By sweeks

Beware the fate of Mr. Pither...

Beware the fate of Mr. Pither (https://vimeo.com/56525357)! (first occurrence at 00:44) :D
I have my pump on the non-drive side of the seat tube where it just fits....
08-14-22, 03:33 PM
Replies: 7
Views: 255
Posted By sweeks

This is a non-sequitur. Whether the "endo"...

This is a non-sequitur. Whether the "endo" happens or not has nothing to do with where the friction occurs.
It depends on the relationship between the center of mass of the bike-rider system and the...
08-14-22, 03:15 PM
Replies: 7
Views: 197
Posted By sweeks

Bearings should be adjusted to have zero play....

Bearings should be adjusted to have zero play. This gives the best load distribution among the bearing elements. See THIS...
Showing results 1 to 50 of 1000
 


 
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