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Search: Posts Made By: WizardOfBoz
Showing results 1 to 50 of 198
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10-16-21, 01:59 PM
Replies: 20
Views: 269
Posted By WizardOfBoz

Oh... You're talking about the bike.

Oh... You're talking about the bike.
10-16-21, 01:08 PM
Replies: 20
Views: 506
Posted By WizardOfBoz

I weight about 245# and have been riding on the...

I weight about 245# and have been riding on the roads on 20h wheels (Botrager Race XXX, and Paradigm). I hit a pothole and the rim is a little wonky (the seam is very slighlty sprung I think). I'm...
09-29-21, 08:38 PM
Replies: 11
Views: 314
Posted By WizardOfBoz

Yup. If you want the handlebars higher, can you...

Yup. If you want the handlebars higher, can you you find a step with a steeper angle?
09-23-21, 12:55 PM
Replies: 83
Views: 2,434
Posted By WizardOfBoz

As someone who has gone over the handlebars and...

As someone who has gone over the handlebars and landed on my chin due to trying to optimize improperly (and who grew up working in a machine shop and now has a PhD in Engineering) I would suggest...
09-19-21, 04:24 PM
Replies: 20
Views: 632
Posted By WizardOfBoz

This was interesting, May give you an idea for...

This was interesting, May give you an idea for your fork.

https://www.youtube.com/watch?v=TtOeCtNBUwg
08-22-21, 07:47 PM
Replies: 17
Views: 587
Posted By WizardOfBoz

Yes, stop with the sanding discussion already. ...

Yes, stop with the sanding discussion already. Sanding will remove metal and damage carbon. Sanding will do much more damage to your fork than the normal, minimal amount of oxidation on the fork...
08-22-21, 10:27 AM
Replies: 17
Views: 587
Posted By WizardOfBoz

Uhhh. So pure aluminum in air forms an oxide...

Uhhh. So pure aluminum in air forms an oxide layer almost immediately. As pointed out by cycommute, this layer is a pretty strong barrier to further oxidation. Chemicals (e.g salt air near the sea...
08-15-21, 07:50 PM
Replies: 4
Views: 371
Posted By WizardOfBoz

Probably a Stronglight A6. :) You need a square...

Probably a Stronglight A6. :) You need a square taper bottom bracket.

See here (https://www.sheldonbrown.com/bbtaper.html) for an orientation about square taper. I think you want an ISO taper (not...
04-17-21, 11:06 PM
Replies: 45
Views: 1,542
Posted By WizardOfBoz

Imagine lying on a prone bike holding a spoke....

Imagine lying on a prone bike holding a spoke. You can reach out to the front wheel. You want the bike to move. Do you hold the spoke near the center of the hub and try to use the stiffness of the...
04-12-21, 07:04 PM
Replies: 19
Views: 1,145
Posted By WizardOfBoz

Just to be clear: DON'T use kerosine or mineral...

Just to be clear: DON'T use kerosine or mineral spirits in an ultrsonic cleaner. Very bad karma.
03-20-21, 08:53 AM
Replies: 19
Views: 842
Posted By WizardOfBoz

I like this kind of project. 1) You salvage...

I like this kind of project. 1) You salvage something that somebody made, 2) you have the satisfaction of learning and completing a project, and 3) you get to go riding.

I'm an engineer and...
03-14-21, 01:52 PM
Replies: 19
Views: 842
Posted By WizardOfBoz

Hold up here. You say you have a 4mm fine pitch...

Hold up here. You say you have a 4mm fine pitch screw. That's probably MF4 (with a 0.5mm* pitch, btw, in case you want to try to order one). The tapped hole that this fits into has a minor diameter...
03-04-21, 05:49 AM
Replies: 24
Views: 1,344
Posted By WizardOfBoz

Ah, sorry. BTW, do you have a line on cheap...

Ah, sorry. BTW, do you have a line on cheap oysters? Every time I lube my chain, it costs me about 40 bucks at Whole Foods...
12-29-20, 01:43 PM
Replies: 29
Views: 1,692
Posted By WizardOfBoz

dsaul, thanks - very interesting. Appreciate...

dsaul, thanks - very interesting. Appreciate your sharing directly relevant experience.
I do recall back in the day hearing that silver-soldered lugs were mega strong.
12-18-20, 07:19 PM
Replies: 30
Views: 2,450
Posted By WizardOfBoz

Not so sure I'd jump to green. In New Mexico,...

Not so sure I'd jump to green. In New Mexico, I'd always ask first: "Green or Red"?
11-18-20, 05:25 AM
Replies: 56
Views: 2,948
Posted By WizardOfBoz

The bottom bracket may be cast (although I...

The bottom bracket may be cast (although I suspect forged) but the tubes are all drawn, hydroformed, and welded. You can see the "stacks of dimes" welds at the joints.

Also, unless an Mg bike was...
11-16-20, 08:00 PM
Replies: 11
Views: 1,372
Posted By WizardOfBoz

The yield strength for Ti is generally less than...

The yield strength for Ti is generally less than half of that for steel. That is, for the same size screw, steel is much stronger. If the bike was designed and fasteners were sized assuming steel...
11-07-20, 12:45 PM
Replies: 40
Views: 2,117
Posted By WizardOfBoz

Ummmm. So the bike shop that charged 25 bucks...

Ummmm. So the bike shop that charged 25 bucks failed. So 25 bucks is too little. And you have a bike shop that charges 50 bucks that's surviving. Doesn't that kind of tell you that 50 bucks is in...
10-18-20, 09:31 AM
Replies: 21
Views: 1,335
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...
08-03-20, 08:37 PM
Replies: 183
Views: 15,594
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....
08-01-20, 03:17 PM
Replies: 21
Views: 978
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...
07-30-20, 09:28 PM
Replies: 29
Views: 1,806
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: 437
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...
07-28-20, 02:24 PM
Replies: 45
Views: 2,636
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...
07-27-20, 09:03 PM
Replies: 45
Views: 2,636
Posted By WizardOfBoz

Very nice, clean install.

Very nice, clean install.
07-25-20, 11:01 AM
Replies: 26
Views: 5,647
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: 2,636
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: 2,636
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...
07-23-20, 07:44 AM
Replies: 23
Views: 997
Posted By WizardOfBoz

Hey, Phil, they don't have to be digital! One...

Hey, Phil, they don't have to be digital! One could use a dial or even an old vernier caliper, some of which were more accurate than the current ChinCom offerings at Harbor Fright.

I own an old...
07-22-20, 06:57 AM
Replies: 15
Views: 939
Posted By WizardOfBoz

Yes! The Overseer: ...

Yes! The Overseer:

https://cimg9.ibsrv.net/gimg/bikeforums.net-vbulletin/484x473/dorg_6313d3e2b550bd4e3854f0e54d37378b36387a9f.jpg
07-19-20, 09:26 AM
Replies: 33
Views: 8,067
Posted By WizardOfBoz

I guess every "generation" of forum members has...

I guess every "generation" of forum members has to repeat the past....

I will point out that there's a lot of trade-offs in bearings and bearing lubrication. If I were racing, maybe the very small...
07-17-20, 01:39 PM
Replies: 35
Views: 2,857
Posted By WizardOfBoz

Cool! I remember visiting the store when I was in...

Cool! I remember visiting the store when I was in school (my house was right on Lake Mendota, a short walk from the Union Terrace, and with a direct view one winter morning as below.)

Later I...
07-16-20, 08:50 PM
Replies: 14
Views: 705
Posted By WizardOfBoz

The more I read dsbrantjr's stuff, the more I'm...

The more I read dsbrantjr's stuff, the more I'm impressed. That Vibra stuff looks like your answer.
07-16-20, 08:48 PM
Replies: 248
Views: 54,435
Posted By WizardOfBoz

Ah, a zombie thread. Sorry guys and gals. Enjoy...

Ah, a zombie thread. Sorry guys and gals. Enjoy the pic anyway.
07-16-20, 06:30 PM
Replies: 35
Views: 2,857
Posted By WizardOfBoz

Yer missing the point I think. An ad (and I...

Yer missing the point I think. An ad (and I admit, the story may be apocryphal) would be meant to indicate the depth of commitment and the wealth of NOS parts. Like, for example, genuine 1970s...
07-12-20, 11:43 PM
Replies: 39
Views: 2,542
Posted By WizardOfBoz

I think that the consensus here is that getting a...

I think that the consensus here is that getting a die on the fork is more likely to mangle things than to fix them. So I'm not sure if it matters if the thread is 24 tpi ISO or 1mm (French).

I...
07-10-20, 04:42 PM
Replies: 39
Views: 2,542
Posted By WizardOfBoz

All the guys I respect say the same thing: use a...

All the guys I respect say the same thing: use a triangular file to chase just those last few threads. Start with the file in a good thread, get it up near where the crud is, then gently see if you...
07-10-20, 08:47 AM
Replies: 71
Views: 6,547
Posted By WizardOfBoz

The motorcycle chain lube you are referring to...

The motorcycle chain lube you are referring to may be different than the one I use (DuPont Chainsaver Wax-Based Chain Lubricant, with Teflon(R)). The DuPont product seems to work well. The chain is...
07-08-20, 08:38 PM
Replies: 32
Views: 1,608
Posted By WizardOfBoz

Same guy that figured out selling hot dogs in...

Same guy that figured out selling hot dogs in packs of 10 and buns in packs of 8. I suspect it was Satan, actually.
07-08-20, 02:28 PM
Replies: 2
Views: 526
Posted By WizardOfBoz

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulletin/655x717/fig_newton_45c98cdcbce2af7068ff95078240df5685b9d71c.jpg
07-07-20, 09:51 AM
Replies: 6
Views: 1,023
Posted By WizardOfBoz

If the cable is bad and the cable lube has turned...

If the cable is bad and the cable lube has turned to greasy abrasive paste, best to replace the cables. Kind of ridiculous to tune brakes with almost-worn-out pads, too. And installing and tuning...
07-06-20, 12:00 PM
Replies: 121
Views: 12,668
Posted By WizardOfBoz

My beef with Amazon (and to a lesser extent,...

My beef with Amazon (and to a lesser extent, eBay) is their search function. You can't search for "Genuine Shimano -(for, compatible,fits, matches)". Some times I find a listing I want, record the...
07-04-20, 09:47 AM
Replies: 97
Views: 12,127
Posted By WizardOfBoz

That's how I got back into biking. I had an old...

That's how I got back into biking. I had an old Paramount (drunk hit me when riding, it was a custom frame, Schwinn on strike when I asked them to repair it, they sent me a standard frame which was...
07-01-20, 02:45 PM
Replies: 15
Views: 848
Posted By WizardOfBoz

Put your bike in a cardboard box. Seal it up. At...

Put your bike in a cardboard box. Seal it up. At this point, you can't say whether the sticker is on or off. Heinieburn's uncertainty principle tells us it's both. Just concentrate on the...
07-01-20, 02:36 PM
Replies: 76
Views: 5,855
Posted By WizardOfBoz

I see that folks are getting specific here, so...

I see that folks are getting specific here, so let me put in a plug for the Wizard's favorite fine adjustment tool. (Seriously, this model Garland hammer in a moderate size, Garland 31002 or 31003...
06-30-20, 10:45 AM
Replies: 5
Views: 403
Posted By WizardOfBoz

I agree with Andy, and would add this: a butt...

I agree with Andy, and would add this: a butt weld between two tubes leaves the existing tube thickness at the joint. I'd go for thicker walls, and turning the ends of the tube on a lathe to insert...
06-25-20, 10:17 PM
Replies: 32
Views: 4,686
Posted By WizardOfBoz

Of course I could do it. Or you could do it. Not...

Of course I could do it. Or you could do it. Not sure if the OP is comfortable doing it, but I suspect he could figure it out. You're missing the point. If the LBS does it, the LBS warrants it. So if...
06-25-20, 03:24 PM
Replies: 80
Views: 33,570
Posted By WizardOfBoz

Yup. I found a 60cm Zurich from 1999. I...

Yup.

I found a 60cm Zurich from 1999. I spread the frame, checked alignment and parallelism, and installed Bontrager RLs. And fitted it out with Ultegra R8000.

Only issues are 1) I did a...
06-11-20, 02:52 PM
Replies: 19
Views: 1,218
Posted By WizardOfBoz

I wrote Park, and Calvin Jones was kind enough to...

I wrote Park, and Calvin Jones was kind enough to respond. Apparently the small diameter part helps installation in some stands.

But you're right: there's nothing keeping someone from pulling the...
06-11-20, 02:05 PM
Replies: 36
Views: 4,244
Posted By WizardOfBoz

This was hilarious. Had me chuckling, and...

This was hilarious. Had me chuckling, and thinking about all the smell-good stuff we used back in the day. And then I recall walking on (the U. of Wisconsin) campus one evening with one of the...
Showing results 1 to 50 of 198
 


 
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