Go Back  Bike Forums > Search Forums
Reload this Page >

Search Results

Notices
 
Search: Posts Made By: JohnDThompson
Showing results 1 to 50 of 1000
Search took 4.37 seconds.
10-22-21, 05:22 PM
Replies: 3
Views: 129
Posted By JohnDThompson

Rim eyelets are like rivets. As long as the rim...

Rim eyelets are like rivets. As long as the rim itself doesn't show any cracking, and the eyelet is intact, take a hammer and tap it back down. You may need to brace the other side to get the eyelet...
10-22-21, 05:14 PM
Replies: 18
Views: 210
Posted By JohnDThompson

We have no reason to believe that the bike was...

We have no reason to believe that the bike was properly set up in the first place. It could have come into the OP's possession with the limit screws set wrong, the outer cage plate misaligned, etc....
10-22-21, 12:55 PM
Replies: 7
Views: 205
Posted By JohnDThompson

An over-oiled drivetrain collects grit and can...

An over-oiled drivetrain collects grit and can actually accelerate wear. As others mentioned, less can be better. A precision oiler, with a small drop on each chain roller (but not the side plates)...
10-21-21, 03:30 PM
Replies: 5
Views: 162
Posted By JohnDThompson

The noodles are available in a variety of...

The noodles are available in a variety of configurations. I suspect trying to reshape your current noodle might crimp the lumen and cause the cable to bind.
...
10-21-21, 06:46 AM
Replies: 26
Views: 299
Posted By JohnDThompson

Those Simplex Prestige derailleurs aren't...

Those Simplex Prestige derailleurs aren't intended to be separated from their hangers; that's why it was so difficult. The Prestige hanger won't work with anything other than another Prestige...
10-18-21, 07:08 PM
Replies: 26,094
Views: 2,727,369
Posted By JohnDThompson

40 miles on the fixed gear.

40 miles on the fixed gear.
10-18-21, 06:06 AM
Replies: 9
Views: 268
Posted By JohnDThompson

Chainstay flex with heavy pedaling can cause...

Chainstay flex with heavy pedaling can cause unintended gear shifts on some bikes. Light gauge tubing and short chainstays can exacerbate this.
10-18-21, 05:58 AM
Replies: 4
Views: 232
Posted By JohnDThompson

Most MKS pedals I've encountered have serviceable...

Most MKS pedals I've encountered have serviceable bearings, although I haven't seen repair parts (cones, axles, seals) available separately, except for dustcaps. I've never measured service life in...
10-17-21, 07:21 AM
Replies: 3
Views: 128
Posted By JohnDThompson

This is quite common and not a concern. It's...

This is quite common and not a concern. It's caused by the freewheel threads not being perfectly coaxial with the hub.



Hard to say. Noises can be difficult to track down. What does it sound...
10-16-21, 05:40 PM
Replies: 16
Views: 497
Posted By JohnDThompson

That's what Sutherland's (6th edition) says:

That's what Sutherland's (6th edition) says:
10-16-21, 03:49 PM
Replies: 4
Views: 114
Posted By JohnDThompson

Stronglight spec'ed a 113mm spindle for their...

Stronglight spec'ed a 113mm spindle for their track cranks:
10-15-21, 08:53 PM
Replies: 25,240
Views: 3,207,813
Posted By JohnDThompson

, the The problem with the TCW brake...

, the



The problem with the TCW brake is that it was actuated through the internal gearing; IOW, in 3rd (high) gear, the mechanical advantage of the brake was decreased (when you likely would...
10-15-21, 08:06 PM
Replies: 10
Views: 455
Posted By JohnDThompson

I usually alternate handlebars up/handlebars down...

I usually alternate handlebars up/handlebars down to get more space.
10-11-21, 05:18 PM
Replies: 35
Views: 564
Posted By JohnDThompson

Yes, you can replace a single spoke. What you...

Yes, you can replace a single spoke. What you need is the spoke length, a spoke wrench, and something to assess "trueness" of the wheel (ideally, a truing stand, but watching the rim as it passes...
10-11-21, 05:02 PM
Replies: 29
Views: 569
Posted By JohnDThompson

+1 this. Especially for the last couple years,...

+1 this. Especially for the last couple years, with all the supply chain problems. Catalog spec takes a back seat to getting units out the door and onto the showroom floor.
10-11-21, 04:57 PM
Replies: 64,445
Views: 10,008,749
Posted By JohnDThompson

The Elance came out after I had left Trek, so I...

The Elance came out after I had left Trek, so I don't have authoritative information. The tubing decal only claims 531 3 main tubes, but at that point in Trek's history, they were aggressively...
10-11-21, 01:08 PM
Replies: 64,445
Views: 10,008,749
Posted By JohnDThompson

On our local Craigslist, which is usually...

On our local Craigslist, which is usually dominated by overpriced junk and neglected department store bikes, this odd duck suddenly pops up. Not Campagnolo's best performer, but looks to be in decent...
10-11-21, 01:03 PM
Replies: 64,445
Views: 10,008,749
Posted By JohnDThompson

Well, the Trek will have far less in upkeep costs...

Well, the Trek will have far less in upkeep costs than the Cessna 172.
10-11-21, 01:00 PM
Replies: 12
Views: 277
Posted By JohnDThompson

Simplex had a shift lever mount that fit over...

Simplex had a shift lever mount that fit over that piece, using the execrable Delrin levers. Nothing modern is compatible. It's possible that a Simplex retrofriction lever might work with that...
10-11-21, 05:45 AM
Replies: 9
Views: 188
Posted By JohnDThompson

Defective, I agree. The tread is separating from...

Defective, I agree. The tread is separating from the casing. It's possible the manufacturer might replace it; the worst that can happen is that they say "no."
10-11-21, 05:43 AM
Replies: 30
Views: 608
Posted By JohnDThompson

The O-ring is what the manufacturer expects to...

The O-ring is what the manufacturer expects to solve this problem. I've had helmets where the O-ring does not reliably stop the strap from loosening. In that case, once I've determined the proper...
10-10-21, 07:42 PM
Replies: 48
Views: 1,685
Posted By JohnDThompson

The MUP is not the place to set personal...

The MUP is not the place to set personal performance records. People who are not willing to take it easy and show respect for other trail users should ride elsewhere.
10-09-21, 06:45 AM
Replies: 17
Views: 465
Posted By JohnDThompson

The Dura-Ace centerpull calipers pre-date...

The Dura-Ace centerpull calipers pre-date Shimano's use of the Dura-Ace name for their top-end components. When Dura-Ace became the name for Shimano's high-end racing group, the centerpull calipers...
10-09-21, 06:35 AM
Replies: 35
Views: 712
Posted By JohnDThompson

I see derailleur cables fail most often at the...

I see derailleur cables fail most often at the cable anchor, especially on low-end derailleurs using an eye-bolt, which if over-tightened tends to cut cable strands, and, less commonly at the shift...
10-09-21, 06:22 AM
Replies: 53
Views: 669
Posted By JohnDThompson

I just use a tapered hand reamer. Takes only a...

I just use a tapered hand reamer. Takes only a few seconds for each rim. You could probably buy a reamer at Harbor Freight or a hardware store for less than a bike shop would have to charge you to do...
10-08-21, 07:52 PM
Replies: 10
Views: 319
Posted By JohnDThompson

The rims may be Weinmann, but what are the hubs?...

The rims may be Weinmann, but what are the hubs? My guess for a Schwinn of that era would be something Japanese, Suzue, Sanshin, Shimano, etc., maybe Atom/Maillard from France. In which case,...
10-08-21, 12:31 PM
Replies: 41
Views: 16,080
Posted By JohnDThompson

When the head on my Meidai pump failed, I...

When the head on my Meidai pump failed, I couldn't find a gasket to fit, so I just cut it off and replaced it with a head from Silca. I later found the same head at a farm supply store for about half...
10-08-21, 12:16 PM
Replies: 10
Views: 319
Posted By JohnDThompson

Most front hub axles will be 9mm x 1mm thread;...

Most front hub axles will be 9mm x 1mm thread; rear hub axles 10mm x 1mm thread. There are exceptions, notably Campagnolo and some clones, e.g. Ofmega, Miche, Gipiemme, which use 9mm x 26tpi front...
10-08-21, 11:35 AM
Replies: 53
Views: 669
Posted By JohnDThompson

If you do any riding in wet conditions, aluminum...

If you do any riding in wet conditions, aluminum rims will give you far better braking performance than steel rims. Going to aluminum rims was probably the best upgrade I did on my commuter bike.
...
10-07-21, 10:34 AM
Replies: 6
Views: 316
Posted By JohnDThompson

Fyi:

Fyi:
10-07-21, 10:27 AM
Replies: 14
Views: 323
Posted By JohnDThompson

Tires are approximately circular in...

Tires are approximately circular in cross-section, so a 5mm increase in diameter would be a 2.5mm increase in radius. All else equal, a wider rim will result in a shorter tire as the cross-section...
10-07-21, 10:10 AM
Replies: 37
Views: 952
Posted By JohnDThompson

They don't strictly need to be keyed; it just...

They don't strictly need to be keyed; it just helps hold the adjustment while you tighten the locknut. With a non-keyed spacer, you can use one of your headset spanners to hold the adjustment while...
10-07-21, 07:53 AM
Replies: 34
Views: 858
Posted By JohnDThompson

It sounds like you're using the wrong width hub...

It sounds like you're using the wrong width hub for your frame. Dropout spacing on the frame should match the over-the-locknuts (OLD) width of the hub. If your axle is long enough (you only need a...
10-06-21, 08:14 PM
Replies: 28
Views: 767
Posted By JohnDThompson

Sutherland's provides some help with this:

Sutherland's provides some help with this:
10-06-21, 08:07 PM
Replies: 28
Views: 767
Posted By JohnDThompson

There is no "standard French puller."...

There is no "standard French puller." Stronglight, the inventor of the square-taper cotterless crank, used a 23.35mm diameter extractor thread. Why 23.35mm? Who knows? Maybe Stronglight got a great...
10-06-21, 07:24 AM
Replies: 151
Views: 5,587
Posted By JohnDThompson

Straight-blade forks, especially straight-blade...

Straight-blade forks, especially straight-blade carbon fiber forks on a vintage steel frame.
10-06-21, 06:48 AM
Replies: 57
Views: 1,056
Posted By JohnDThompson

To be fair, the French bike standards are not...

To be fair, the French bike standards are not "weird;" they're metric. Which is the system used everywhere else in the world except the United States, and bicycles.
10-05-21, 07:25 PM
Replies: 28
Views: 767
Posted By JohnDThompson

There may be marks on the fixed cup face that...

There may be marks on the fixed cup face that indicate whether French or Swiss thread.
10-05-21, 06:54 PM
Replies: 52
Views: 14,582
Posted By JohnDThompson

Well, Mikashima also has road and track pedals...

Well, Mikashima also has road and track pedals with the "Sylvan" model name. The differences between them are the cages: the touring version is wider, the road version has a quill, and the track...
10-04-21, 04:32 PM
Replies: 8
Views: 453
Posted By JohnDThompson

If you have a prime number tooth count on either...

If you have a prime number tooth count on either the chainring or the sprocket, the number of skid patches will be equal to the number of teeth on the rear sprocket.
10-04-21, 04:25 PM
Replies: 89
Views: 2,173
Posted By JohnDThompson

I would say, if the local, experienced riders are...

I would say, if the local, experienced riders are recommending against carbon for urban riding, I'd follow their advice at least until I have enough experience to judge otherwise for myself.
10-04-21, 12:07 PM
Replies: 15
Views: 482
Posted By JohnDThompson

No, it won't reverse the effects of an enlarged...

No, it won't reverse the effects of an enlarged prostate, but it might reduce the irritation to the prostate that can lead to misleadingly high PSA levels.
10-04-21, 10:31 AM
Replies: 18
Views: 451
Posted By JohnDThompson

Many dual-pivot caliper have a centering bolt on...

Many dual-pivot caliper have a centering bolt on one of the arms, e.g.:

https://velobase.com/CompImages/Brakes/354A9E21-FDBF-455E-80F7-4C78714F27EB.jpeg...
10-04-21, 05:31 AM
Replies: 6
Views: 316
Posted By JohnDThompson

IIRC, Super Vitus steer tubes had six helical...

IIRC, Super Vitus steer tubes had six helical ribs. Columbus had five. A Columbus steer tube may also have the "dove" stamp, although this is sometimes lost when the steer tube is trimmed to length.
10-04-21, 05:27 AM
Replies: 21
Views: 545
Posted By JohnDThompson

I've been running 38mm tires on CR-18 rims for...

I've been running 38mm tires on CR-18 rims for years now, with no problems.
10-03-21, 06:14 PM
Replies: 19
Views: 526
Posted By JohnDThompson

Most presta inner tubes manufactured in the past...

Most presta inner tubes manufactured in the past couple decades will have removable cores. I have some older tubular tires that lack removable cores, but even most modern tubular tire production will...
10-03-21, 05:46 PM
Replies: 15
Views: 482
Posted By JohnDThompson

Elevated PSA is not in itself a problem, and can...

Elevated PSA is not in itself a problem, and can happen even in the absence of prostate cancer. PSA is considered a screening test for prostate cancer, not a diagnostic test. Elevated PSA can suggest...
10-03-21, 05:39 PM
Replies: 15
Views: 482
Posted By JohnDThompson

Yes, all those activities are known to elevate...

Yes, all those activities are known to elevate PSA levels, even in the absence of prostate cancer.
10-03-21, 05:08 PM
Replies: 18
Views: 451
Posted By JohnDThompson

Campagnolo supplied two "star washers" for the...

Campagnolo supplied two "star washers" for the front caliper to get the wrench flats to clear the headset cup.
10-03-21, 04:14 PM
Replies: 30
Views: 795
Posted By JohnDThompson

Any 1/4" or 6mm balls will work. They should be...

Any 1/4" or 6mm balls will work. They should be readily available at a bike shop, or failing that, a bearing supply house.
Showing results 1 to 50 of 1000
 


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.