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Search: Posts Made By: WizardOfBoz
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10-18-20, 09:31 AM
Replies: 21
Views: 880
Posted By WizardOfBoz

I have a set of Wera Hex Plus keys (traditional...

I have a set of Wera Hex Plus keys (traditional "L" shape: no T handle) that are great. PB Swiss is beyond my pay grade (the Wera price made me gulp). But the 1/4 and 3/8 inch drive short hex keys...
09-26-20, 11:23 PM
Replies: 40
Views: 1,244
Posted By WizardOfBoz

You may have learned, or not, that it was Sir...

You may have learned, or not, that it was Sir Joseph Whitworth (the same guy responsible for the thread form used on Raleighs a while back) that invented the process of generating those surface...
09-16-20, 10:50 AM
Replies: 40
Views: 1,244
Posted By WizardOfBoz

Having said this, I'm betting that the...

Having said this, I'm betting that the hand-scraped surface plate in Andy's basement is cast iron, not steel. Am I correct, Andy? How big is that sucker?
09-16-20, 10:48 AM
Replies: 40
Views: 1,244
Posted By WizardOfBoz

You have to realize that Andy has been at this...

You have to realize that Andy has been at this for 45 years, has run shops and I think owned them, and has built extremely high quality bike frames. If what he says is at odds with your thinking,...
09-14-20, 07:34 PM
Replies: 10
Views: 376
Posted By WizardOfBoz

Upload to google pics or imgur. Then share link:...

Upload to google pics or imgur. Then share link: imgur dot com slash fawr324dsdfu
09-13-20, 09:51 PM
Replies: 25
Views: 716
Posted By WizardOfBoz

So this indicates that the locknut is not tight...

So this indicates that the locknut is not tight against the the cone on one side, at least. Possible a broken locknut. Which means that, unless you properly preloaded the ball and used a cone...
09-12-20, 12:37 PM
Replies: 25
Views: 716
Posted By WizardOfBoz

I think it probably is a broken or worn cone, or...

I think it probably is a broken or worn cone, or the balls got worn/destroyed. Possibly a broken axle. Easily diagnosed by your LBS. Or, take your wheel off, take out the quick release. If you...
09-03-20, 11:12 AM
Replies: 29
Views: 1,085
Posted By WizardOfBoz

If the OP is curious, the dimensions here should...

If the OP is curious, the dimensions here should clarify. The OD of a 1-1/8 steer time is bigger than the ID of the head tube. You'd have to remove the headtube on the frame to replace it.
...
08-19-20, 07:28 AM
Replies: 30
Views: 1,406
Posted By WizardOfBoz

If you want to strip the area around the weld of...

If you want to strip the area around the weld of paint that would probably help, but the welder will likely strip and wire brush the area around the weld themselves anyway.

You don't have to...
08-17-20, 07:32 AM
Replies: 20
Views: 2,072
Posted By WizardOfBoz

Another vote for Musson's book, "Professional...

Another vote for Musson's book, "Professional Guide to Wheelbuilding". I laid out the dough to buy a legit version of this. More modern than Jobst. Explains some things Jobst doesn't.

Jobst's...
08-15-20, 01:07 PM
Replies: 14
Views: 434
Posted By WizardOfBoz

Another route, if your seat-post adjustment and...

Another route, if your seat-post adjustment and seat are strong and rigid:

Arkel Randonneur Rack:
...
08-12-20, 09:23 PM
Replies: 53
Views: 2,705
Posted By WizardOfBoz

I used to run. Out in the country (about 6 mile...

I used to run. Out in the country (about 6 mile round trip). Coming back one day, I see some kids playing with a little dog and it takes off to chase me. A car coming the other way. I threw up my...
08-12-20, 03:40 PM
Replies: 44
Views: 1,307
Posted By WizardOfBoz

Noooooooo! Well, maybeeee! First, get...

Noooooooo!
Well, maybeeee!

First, get yourself a freewheel removal tool and remove the freewheel. Or have the LBS do it. Then you're free to cut any spoke you want. If you cut the spokes...
08-11-20, 09:19 AM
Replies: 16
Views: 593
Posted By WizardOfBoz

You're a rare bird: doing things the way they are...

You're a rare bird: doing things the way they are supposed to be done!
I still like a clevis pin for shear duty rather than a split-pin cotter. But I suppose Shimano knew what they were doing.
08-11-20, 07:17 AM
Replies: 16
Views: 593
Posted By WizardOfBoz

Indeed, one is not supposed to re-use cotter...

Indeed, one is not supposed to re-use cotter pins. Of course, everyone does. But in the classic applications (securing a castle nut with a split-pin through a hole drilled in a bolt, or securing a...
08-07-20, 09:23 PM
Replies: 42
Views: 910
Posted By WizardOfBoz

This is the crank picture ...

This is the crank picture
https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/img_2822_d513f1913405a1b8371ad16fc4be671437b21569.jpg
08-07-20, 09:37 AM
Replies: 20
Views: 443
Posted By WizardOfBoz

The steel bike seems like a real jewel. That...

The steel bike seems like a real jewel. That said, I have my steel (Lemond Zurich) and CF (Trek Domane 6.0) and the CF is (IMHO) nicer to ride. Certainly a bit more efficient.

As others have...
08-07-20, 09:11 AM
Replies: 6
Views: 268
Posted By WizardOfBoz

I was going to recommend a flexible epoxy, G-Flex...

I was going to recommend a flexible epoxy, G-Flex from West Systems, but I think the smallest available packaging (two 4 ounce tubes or somesuch) is nearly 30 bucks.

Not sure that cyanoacrylate...
08-06-20, 07:57 PM
Replies: 22
Views: 806
Posted By WizardOfBoz

I think that you're being too hard on yourself. ...

I think that you're being too hard on yourself. I grew up working in a machine shop (and also have a PhD and MS in engineering, but the shop expereince is the more important here). So I have...
08-06-20, 08:27 AM
Replies: 22
Views: 806
Posted By WizardOfBoz

Not teeing off you you, cs141, but a comment on a...

Not teeing off you you, cs141, but a comment on a lot of posts I see here. Why do people assume that it's ok to cut or drill into highly engineered, weight-optimized frames? Think twice about doing...
08-06-20, 08:07 AM
Replies: 22
Views: 806
Posted By WizardOfBoz

So, is the setup similar to that shown below (An...

So, is the setup similar to that shown below (An Alibi Sport, I believe)? So the hole is in the seat stay and has no reinforcement?

...
08-06-20, 07:42 AM
Replies: 16
Views: 510
Posted By WizardOfBoz

Nice to read a account written that has immense...

Nice to read a account written that has immense experience, and an intention to explain and help. Thanks, Andy.

As far as kids doing accelerated high stress testing of their poor bikes, I...
08-03-20, 08:37 PM
Replies: 183
Views: 9,350
Posted By WizardOfBoz

Trakhak, you may enjoy this true story. The...

Trakhak, you may enjoy this true story. The story's a bit self indulgent and a trip down memory lane - please humor me. When I was growing up, my Mom and Dad's best friends were Dorothea and Eldon S....
08-03-20, 02:44 PM
Replies: 8
Views: 260
Posted By WizardOfBoz

fietsbob is right: if you are the OCD type, find...

fietsbob is right: if you are the OCD type, find a set of used brake hoods of the same type on eBay and canabalize.
08-03-20, 11:47 AM
Replies: 4
Views: 311
Posted By WizardOfBoz

I think you're ok. Keep an eye on things to...

I think you're ok. Keep an eye on things to ensure you see no fatigue cracks.

Keep in mind, the DT is mostly loaded in tension. Some torsion and bending. If this was the top tube (loaded in...
08-01-20, 03:17 PM
Replies: 21
Views: 477
Posted By WizardOfBoz

The problem is that the stamp extends into the...

The problem is that the stamp extends into the steel. If you file down far enough to get rid of the indentations, you are 1) removing any anti-rust plating, and 2) possibly significantly weakening...
08-01-20, 12:59 PM
Replies: 8
Views: 364
Posted By WizardOfBoz

I weigh 240 and my two most frequently ridden...

I weigh 240 and my two most frequently ridden bikes (both 700c) use 24 and 20 spoke wheels. My prejudice is that anyone weighing only 125 has no business worrying about wheel strength! Sorry to...
08-01-20, 12:44 PM
Replies: 12
Views: 346
Posted By WizardOfBoz

One other possible issue is that the axles are a...

One other possible issue is that the axles are a bit too long and are keeping the QR and Pinhead from clamping.
07-30-20, 09:28 PM
Replies: 29
Views: 874
Posted By WizardOfBoz

I've used Goo Gone on a lot of things like label...

I've used Goo Gone on a lot of things like label adhesives. I'd suggest trying it. The 3m product (Citrus Based Adhesive Remover) is based on an sweet orange extract. 3m stuff is usually pretty...
07-30-20, 03:02 PM
Replies: 8
Views: 359
Posted By WizardOfBoz

You can check that length here, The Recumbent...

You can check that length here, The Recumbent Bicycle and Human Powered Vehicle Information Center (http://www.recumbents.com/wisil/misc/crank_angle.asp),
but in practice most folks can handle a...
07-29-20, 09:16 AM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Sounds like you're good to go without the radical...

Sounds like you're good to go without the radical surgery. That's great. A key point is that the rack bolts are loaded in shear and not tensile, so the threads don't have a lot of force on them. ...
07-29-20, 08:48 AM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

A tap is only going to form or cut metal if there...

A tap is only going to form or cut metal if there is metal to cut. If you have a through hole, neither tap will do much of anything. In my estimation, you have three choices
1) Check to see if the...
07-29-20, 08:06 AM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Well, first, if you can slide the bolt in and out...

Well, first, if you can slide the bolt in and out without turning, tapping's not going to do anything but scratch up the inside of the hole. If this is the case, check to ensure that the bolt isn't...
07-29-20, 07:44 AM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Hey, Hank, I learned something and you put your...

Hey, Hank, I learned something and you put your rack and fender stays on correctly. Kudos! Thanks, Andy.
07-28-20, 02:24 PM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Ummmm. Ok. Why did you file out more metal from...

Ummmm. Ok. Why did you file out more metal from the eyelet? Not to be a jerk, because you are trying (and didn't grow up working in a metalworking shop and a bike shop) but the next time you have the...
07-28-20, 01:28 PM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

But again, if your nylock engages properly you...

But again, if your nylock engages properly you should be good to go.
07-28-20, 01:26 PM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

I'm an engineer. We condsider what is called...

I'm an engineer. We condsider what is called "failure modes" and consequences for different design cases.

Both design cases: rack stay on inside, fender stay on outside.

Design Case 1: Nut on...
07-28-20, 12:41 PM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Wait til Andrew weighs in. May be worth a PM to...

Wait til Andrew weighs in. May be worth a PM to him. I think you're ok, though. The key thing is that the bolt has to have the nylon part engaged.

If I had to do something, I'd reverse the...
07-28-20, 11:36 AM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

If you look at an earlier note, I mentioned...

If you look at an earlier note, I mentioned threadlocker OR a nylock nut. Note that the bolt has to extend all the way through the nut (the bolt tip should extend one or two threads past the nylon...
07-28-20, 10:32 AM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Wait to hear back from Andrew - he'll have a...

Wait to hear back from Andrew - he'll have a viewpoint with the advantage of deep experience.

But you DID torque the nuts, using LocTite, right? LocTite Blue 242*?

The reason I ask is that...
07-28-20, 08:20 AM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Andy, would you recommend that the rack stays be...

Andy, would you recommend that the rack stays be outboard, and the fender wires be inboard, to give a bit wider stance and resistance to lateral force?
07-27-20, 09:03 PM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Very nice, clean install.

Very nice, clean install.
07-27-20, 03:18 PM
Replies: 7
Views: 296
Posted By WizardOfBoz

Not sure that the question was silly. Some bikes...

Not sure that the question was silly. Some bikes have welded on flanges for bash guards. You're looking to add a guard to a bike without that flange. So you propose using an adapter flange that...
07-27-20, 11:35 AM
Replies: 5
Views: 315
Posted By WizardOfBoz

The difference in cogs in the back goes from 21...

The difference in cogs in the back goes from 21 to 24. Add in the front difference of 22 and you go from 43 to 46. The long cage rd is supposedly maxed out at 45T difference. I suspect that the 1...
07-26-20, 10:13 PM
Replies: 183
Views: 9,350
Posted By WizardOfBoz

But it does occasionally get you a better seat in...

But it does occasionally get you a better seat in the restaurant sometimes. "This is Doctor Wizard. Table for two in a half-hour? Merci, Francois".

Regarding Rene, I think he may have a valid...
07-26-20, 10:20 AM
Replies: 26
Views: 1,044
Posted By WizardOfBoz

Well you're a tougher 63 than I am. :D

Well you're a tougher 63 than I am. :D
07-25-20, 10:12 PM
Replies: 48
Views: 1,992
Posted By WizardOfBoz

Morris and MG engines from the middle 50 years of...

Morris and MG engines from the middle 50 years of the 20th century were the reverse: Metric pitch (but Whitworth thread form) and British Standard Whitworth heads!

From a strength and fatigue...
07-25-20, 11:01 AM
Replies: 26
Views: 1,044
Posted By WizardOfBoz

So, why do you inflate your tires to 110 psi? Or...

So, why do you inflate your tires to 110 psi? Or 75psi, for that matter. Here's my criteria:
1) Low enough pressure to be comfortable (if this were not the first criterion, one could ride on...
07-24-20, 07:10 AM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

Stainless can gall with aluminum if the fit was...

Stainless can gall with aluminum if the fit was too tight and especially if the materials (like the SS) was of poor quality (e.g. Home Despot).

Not sure if corrosion was the cause of the initial...
07-23-20, 10:14 PM
Replies: 45
Views: 1,073
Posted By WizardOfBoz

This sounds like a classic case of galling, which...

This sounds like a classic case of galling, which happens with SS nuts and SS bolts. Or Ti nuts and Ti bolts. Galling is when similar metals cold weld to themselves under high friction. What material...
Showing results 1 to 50 of 1000
 


 
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