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Search: Posts Made By: Andrew R Stewart
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10-03-22, 08:23 PM
Replies: 2
Views: 70
Posted By Andrew R Stewart

Have you tried your LBS, in SD, CA i would think...

Have you tried your LBS, in SD, CA i would think there would be a few. If you can't make sense of the specs needed to match up than go to a pro. Andy
10-03-22, 08:18 PM
Replies: 22
Views: 287
Posted By Andrew R Stewart

The best repair is of course a boss/base...

The best repair is of course a boss/base replacement. This would require some chrome removal and the skills/tools to do such. The repair kit I suggested is the make do method. Doing this make do...
10-02-22, 02:27 PM
Replies: 7
Views: 316
Posted By Andrew R Stewart

Of course the frame (and wheels and ...) are...

Of course the frame (and wheels and ...) are flexing when an off center force is applied. But what results from the flex happening is the bigger question. I will suggest that frame flex has nothing...
10-02-22, 02:19 PM
Replies: 29
Views: 607
Posted By Andrew R Stewart

This needs to be repeated. Carbon structures...

This needs to be repeated. Carbon structures should not be attempted to be aligned by bending. Even with this added caution note someone here will not read the text and instead will see the images...
Forum: Framebuilders
10-01-22, 11:04 PM
Replies: 5
Views: 197
Posted By Andrew R Stewart

I would think the ultimate solution would be to...

I would think the ultimate solution would be to replace the seat tube. I have known of this type of problem just being reflowed but the possible corrosion in the joint makes me less thrilled. Not...
10-01-22, 10:49 PM
Replies: 29
Views: 607
Posted By Andrew R Stewart

I have seen this carbon (and AL) fork blade...

I have seen this carbon (and AL) fork blade length discrepancy a lot. The rim is off center often only a couple of MMs. With about a 3x factor (dropout width VS rim radius) that means about a half MM...
10-01-22, 10:27 PM
Replies: 7
Views: 265
Posted By Andrew R Stewart

If you are only looking to lift the chain to...

If you are only looking to lift the chain to where an axle would be a piece of 3/8" All Thread rod w/ nuts will do the same. An old hub, cut from a wheel, with an old cog is another possibility. Andy
10-01-22, 10:23 PM
Replies: 22
Views: 287
Posted By Andrew R Stewart

Brian- I don't have the kit I thought I had. Work...

Brian- I don't have the kit I thought I had. Work might have one but not two. I will still look on Monday.

I did the next best thing and took some measurements. The OD of a canti post runs...
10-01-22, 03:38 PM
Replies: 22
Views: 287
Posted By Andrew R Stewart

The imaged bosses sure look like common ones but...

The imaged bosses sure look like common ones but have has the smooth post section removed, cut off. As in these were a one piece type. machined on a lathe and the spring tab plate brazed on. The...
09-29-22, 07:54 AM
Replies: 23
Views: 527
Posted By Andrew R Stewart

I describe thread directions as "clockwise" or...

I describe thread directions as "clockwise" or "counter clockwise" and never "righty tighty". This way no mater how the wrench is placed (above or below) on the part it can be turned in the correct...
09-29-22, 07:49 AM
Replies: 6
Views: 249
Posted By Andrew R Stewart

I disagree with BG. Having seen many tires that...

I disagree with BG. Having seen many tires that have the wire of the tire's bead no longer contained by the casing, the casing fibers being cut or abraded, and seen the tire side lift off the rim...
09-29-22, 07:43 AM
Replies: 21
Views: 316
Posted By Andrew R Stewart

Yea, I've watched in mixed feelings fellow club...

Yea, I've watched in mixed feelings fellow club riders to a tube install in just a couple of minutes, skipping steps that I do. I've also watched some get a second flat only a few miles later...
...
09-28-22, 05:51 PM
Replies: 21
Views: 316
Posted By Andrew R Stewart

Of course the fastest way to fix a flat is with a...

Of course the fastest way to fix a flat is with a spare tube, not a patch. Just be sure why it went flat is fixed too. Andy
Forum: Framebuilders
09-28-22, 01:54 PM
Replies: 11
Views: 260
Posted By Andrew R Stewart

As Mark B said trying the just remelt as a first...

As Mark B said trying the just remelt as a first effort makes sense.

Brass/bronze is, well, brassy colored. Silver is a grey color. you could lightly run a hacksaw blade along the crack and see...
09-28-22, 01:21 PM
Replies: 6
Views: 249
Posted By Andrew R Stewart

Not the answer but an observation. It is...

Not the answer but an observation.

It is somewhat funny that a feature that when introduced was thought of as being such a big improvement (hook beaded rims, allowing far higher tire pressures) is...
09-28-22, 01:09 PM
Replies: 10
Views: 206
Posted By Andrew R Stewart

Well actually... Shimano dual pivot brake...

Well actually...

Shimano dual pivot brake calipers have has a caliper return spring adjuster for a long time and on most all their series/grades. No screw but a small plastic block that most here...
Forum: Framebuilders
09-28-22, 08:21 AM
Replies: 16
Views: 325
Posted By Andrew R Stewart

As most of this stuff is long past production it...

As most of this stuff is long past production it will become rarer over the years. I will say that there are quite a few people who have this kind of stuff in their stash still though. Were this...
Forum: Framebuilders
09-28-22, 08:15 AM
Replies: 11
Views: 260
Posted By Andrew R Stewart

Are you sure the filler is silver? Were the stays...

Are you sure the filler is silver? Were the stays to be replaced or the cracked one pulled back enough to clean up the area well I would consider using brass/bronze filler to reattach the stays....
09-28-22, 08:10 AM
Replies: 21
Views: 316
Posted By Andrew R Stewart

My observations say yes, lower air pressures...

My observations say yes, lower air pressures allow for more tire/tube squirm and potential abrasion. Just look at tires that have been ridden w/ too little pressure and see the cocked over valve as...
09-27-22, 04:24 PM
Replies: 21
Views: 316
Posted By Andrew R Stewart

This! "Glueless" patches just have a lower grade...

This! "Glueless" patches just have a lower grade of glue and the ability to stay on is challenged by the tube stretching, squirming about or rubbing against the tire's insides. I have found...
09-27-22, 04:18 PM
Replies: 24
Views: 449
Posted By Andrew R Stewart

The Op mentions having a "split hub" while on a...

The Op mentions having a "split hub" while on a tour, breaking spokes and seems to be concerned about a bearing failure that will stop function and finding replacements. I've commented on design a...
09-27-22, 01:05 PM
Replies: 23
Views: 446
Posted By Andrew R Stewart

This! What i did to get the wheel good enough to...

This! What i did to get the wheel good enough to ride safely was to loosen up all the spokes a tad then counter whack it against the ground, keeping the tire pressure normal. Eyeball the rim's...
09-27-22, 12:56 PM
Replies: 16
Views: 273
Posted By Andrew R Stewart

Some companies, and their contractors, do a...

Some companies, and their contractors, do a better job at matching the aero post and seat tube and associated clamp shapes and dimensions, others less so. I can't offer many options to brand/design...
09-26-22, 10:07 PM
Replies: 6
Views: 179
Posted By Andrew R Stewart

Safe- That is much more about paying attention to...

Safe- That is much more about paying attention to your equipment than any initial slight miss match of BB axle taper dimensions. If you can't judge how tight you've run up a fitting...

Compatible-...
09-26-22, 08:39 PM
Replies: 2
Views: 103
Posted By Andrew R Stewart

1- Sure, especially if you will sleep better for...

1- Sure, especially if you will sleep better for it.

2- Sure and it will likely work well. Just don't over tighten the stem binder bolts. Andy
09-26-22, 08:33 PM
Replies: 16
Views: 273
Posted By Andrew R Stewart

Binder bolts can break from a few reasons, IME...

Binder bolts can break from a few reasons, IME the most common is because the bolt is no longer able to remain straight as the enough tightness level is reached. In an ideal world the faces/seats of...
09-25-22, 01:24 PM
Replies: 6
Views: 92
Posted By Andrew R Stewart

That would seem to be the easy thing to do. I...

That would seem to be the easy thing to do. I suggest an enclosed cam skewer when used w/ a disk brake. The external can QRs don't always get tight enough to keep the axle from shifting w/in the drop...
09-25-22, 12:03 PM
Replies: 6
Views: 92
Posted By Andrew R Stewart

I sure hope the caliper mounting has some lateral...

I sure hope the caliper mounting has some lateral adjustment range. It's a pretty poor design to not allow for tolerances drift. Andy
09-25-22, 11:54 AM
Replies: 22
Views: 658
Posted By Andrew R Stewart

Here in the USA most all wholesalers have...

Here in the USA most all wholesalers have tightened up their rules as to who they will sell to. Pretty much a location, a resale license (and thus sales tax paid to the state), liability insurance...
09-25-22, 11:35 AM
Replies: 6
Views: 92
Posted By Andrew R Stewart

AL fork dropouts? There's a good chance that the...

AL fork dropouts? There's a good chance that the dropout faces have developed some indents from the QR or axle ends and now the axle/QE wants to settle into that indent position. Maybe try another QR...
Forum: Framebuilders
09-25-22, 09:44 AM
Replies: 1
Views: 188
Posted By Andrew R Stewart

Just your luck that this thread, Filling top tube...

Just your luck that this thread, Filling top tube holes - Bike Forums (https://www.bikeforums.net/framebuilders/1255881-filling-top-tube-holes.html) is currently being posted to.

Many would...
09-25-22, 09:39 AM
Replies: 31
Views: 792
Posted By Andrew R Stewart

I wonder if the cog count the two different ft...

I wonder if the cog count the two different ft ders are were different too. If the OEM Sora was an 8 speed and the replacement was a 9 cog one the cage width and the amount of travel will be...
09-25-22, 09:33 AM
Replies: 23
Views: 446
Posted By Andrew R Stewart

The wife and I were finishing our VY to ME tour....

The wife and I were finishing our VY to ME tour. She was a photographer and had stopped just ahead to shoot a picture and I, not paying attention to where I was rolling, rode into her left side rear...
09-25-22, 08:50 AM
Replies: 23
Views: 446
Posted By Andrew R Stewart

I view on road repairs as being a "make do" to...

I view on road repairs as being a "make do" to get back tiding and save the fine tuning level for when I get back. Here's a shot of my most challenging on tour repair. I got the wheel good enough to...
Forum: Framebuilders
09-24-22, 06:21 PM
Replies: 5
Views: 208
Posted By Andrew R Stewart

It shouldn't mater which dimension one uses as...

It shouldn't mater which dimension one uses as long as one is consistent within their own calculations and analysis. I use the horizontal version of trail. No pneumatic no mechanical. Andy
09-24-22, 06:04 PM
Replies: 16
Views: 429
Posted By Andrew R Stewart

This, unless one is really bad at attaching and...

This, unless one is really bad at attaching and removing the pump valve chuck on and off the valve. Then the added support of the valve stem might reduce a valve base issue which would be caused by...
09-24-22, 06:00 PM
Replies: 7
Views: 200
Posted By Andrew R Stewart

The moment awareness starts is not always when...

The moment awareness starts is not always when problems have begun.

Having said that I would confirm that the rear der adjustments are good because that is easy to do. The next aspect is that...
09-24-22, 08:01 AM
Replies: 24
Views: 449
Posted By Andrew R Stewart

The point I was thinking of, but didn't yet fully...

The point I was thinking of, but didn't yet fully describe, is that the stub axle's diameter at the inner bearing will be quite limited by the ID size that bearing can have. By converting a...
09-23-22, 06:53 PM
Replies: 24
Views: 449
Posted By Andrew R Stewart

I was going to ramble on in a prior post about...

I was going to ramble on in a prior post about hub and trailer frame design. Specifically on the Burley D'Lite enwrapping frame around the hub aspect. Besides being able to use conventional bike ft...
09-23-22, 06:38 PM
Replies: 24
Views: 449
Posted By Andrew R Stewart

And with a last name like you have we should heed...

And with a last name like you have we should heed your machining advise:) Andy
09-23-22, 06:28 PM
Replies: 24
Views: 449
Posted By Andrew R Stewart

A few comments- Stub axles see far higher...

A few comments-

Stub axles see far higher bending forces than axles supported at both ends, way higher.
Do make sure the increased trailer height (with the 4" larger diameter tires changing the...
09-23-22, 10:51 AM
Replies: 12
Views: 269
Posted By Andrew R Stewart

Yes, I have never seen a threaded race with a...

Yes, I have never seen a threaded race with a built-in tab, the two are mutually exclusive of each other. When the tab is forced off center (rotated so the tab is no longer in the steerer's groove)...
09-23-22, 10:43 AM
Replies: 14
Views: 225
Posted By Andrew R Stewart

I suspect that the "8E 0" is a manufacturing date...

I suspect that the "8E 0" is a manufacturing date code. One could search for a matching image (via on line photos or catalogs) then search for that match's specs. Andy
09-23-22, 10:38 AM
Replies: 15
Views: 192
Posted By Andrew R Stewart

A properly aligned der hanger will allow the der...

A properly aligned der hanger will allow the der cage to be "in plane" with the cogs, the two pulleys will be vertically in line with the cog that is in use. When the pulleys/cage is off line the...
09-23-22, 09:15 AM
Replies: 12
Views: 269
Posted By Andrew R Stewart

To my eyes it looks like the tabbed lock washer...

To my eyes it looks like the tabbed lock washer has become rotated on the steerer and it's tab is not jammed on the steerer's threads (and no longer residing in the steerer's groove). The usual fix...
09-23-22, 08:05 AM
Replies: 18
Views: 368
Posted By Andrew R Stewart

Here in NYS we have the same regulations, however...

Here in NYS we have the same regulations, however most people feel that the police have more important things to do than chase reflector less cyclists.

It would be interesting to learn of this...
09-22-22, 09:11 PM
Replies: 18
Views: 368
Posted By Andrew R Stewart

The usual issue with pedal reflectors and toe...

The usual issue with pedal reflectors and toe clips is that most current reflectors are rather cheap injected plastic and the bolt heads tend to compress into the plastic bodies (of the reflectors)....
09-22-22, 07:32 PM
Replies: 22
Views: 658
Posted By Andrew R Stewart

Agree that knowing how currently working shops...

Agree that knowing how currently working shops handle their business model and the market is another very good research tool. Andy
09-22-22, 07:29 PM
Replies: 3
Views: 141
Posted By Andrew R Stewart

IIRC the start washer has nothing to do with the...

IIRC the start washer has nothing to do with the "bearing" adjustment that sets the caliper arms' slop and easy movement. The star washer is "outside" the arm's involvement.

The two caliper arms...
09-22-22, 06:52 PM
Replies: 22
Views: 658
Posted By Andrew R Stewart

THIS! It is a long time understanding that, to be...

THIS! It is a long time understanding that, to be in the bike repair business a long time, having a smart and successful spouse is a very good thing. This is your path to (at least here in the USA)...
Showing results 1 to 50 of 1000
 


 
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