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Search: Posts Made By: Andrew R Stewart
Showing results 1 to 50 of 1000
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07-24-21, 08:52 AM
Replies: 5
Views: 1,332
Posted By Andrew R Stewart

I suspect used parts for sale will be the way to...

I suspect used parts for sale will be the way to get long out of production hoods. Andy
07-24-21, 08:50 AM
Replies: 8
Views: 154
Posted By Andrew R Stewart

Agreed but zip ties are not very fool proof. They...

Agreed but zip ties are not very fool proof. They are a band aid for a less then ideal device, the plastic block. The other way I do it often rnough for one time shipping is to cut a length of box...
07-24-21, 08:44 AM
Replies: 10
Views: 221
Posted By Andrew R Stewart

As the OP seems to be finding out the head tube...

As the OP seems to be finding out the head tube is most likely NOT threaded. I haven't ever seen one (and that's with 48 years of LBS life). As to the cone/cup placement it varies and there's no...
07-24-21, 08:36 AM
Replies: 8
Views: 154
Posted By Andrew R Stewart

If one will be removing the ft wheel and...

If one will be removing the ft wheel and transporting/shipping the bike often these plastic fork end blocks suck and in time don't stay put. better will be an axle with nuts located on either side of...
07-24-21, 08:31 AM
Replies: 6
Views: 136
Posted By Andrew R Stewart

While for it's time and the company that made it,...

While for it's time and the company that made it, this der was considered a pretty cool item. Excepting the weak upper knuckle casting which would easily crack. Version 2 (the image looks to show the...
07-24-21, 08:18 AM
Replies: 8
Views: 154
Posted By Andrew R Stewart

If in doubt about fork alignment and wheel...

If in doubt about fork alignment and wheel placement I would seek someone who can place their hands and eyes on your bike. Yes we could give you a tutorial on how to preform alignment checks and...
Forum: Framebuilders
07-23-21, 07:51 PM
Replies: 13
Views: 256
Posted By Andrew R Stewart

Back in the day we painted our frames on the shop...

Back in the day we painted our frames on the shop roof. We tried to stay up wind for both spray ending up on the tubes and to minimize our breathing the fumes (Imron). We had a mask with charcoal...
07-23-21, 07:39 PM
Replies: 9
Views: 172
Posted By Andrew R Stewart

We sell and install many hundreds of tubes each...

We sell and install many hundreds of tubes each year and sell more. During this last 18 months the pandemic has meant that we, like much of the LBS segment of the bike industry, has had to try to...
07-23-21, 07:25 PM
Replies: 30
Views: 577
Posted By Andrew R Stewart

Some of this comparison and which will work for...

Some of this comparison and which will work for you depends on your expectations, your experiences and your skill level.

Expectations- Life is about more then gear range. gaps between gears is...
07-23-21, 02:53 PM
Replies: 12
Views: 280
Posted By Andrew R Stewart

Seen this only a few times. But those of us who...

Seen this only a few times. But those of us who have worked on Simples sliding ft ders know well the nature of a cable stop moving type of design. The longer one does the old bike servicing the more...
Forum: Framebuilders
07-22-21, 06:28 AM
Replies: 6
Views: 206
Posted By Andrew R Stewart

Unrelated to the OP's question but of passing...

Unrelated to the OP's question but of passing interest- I bought a used torch handle a few years ago off EBay. I forget the brand but was one of the small "aircraft" types we seek. I hooked it up and...
07-22-21, 06:21 AM
Replies: 2
Views: 100
Posted By Andrew R Stewart

There's no industry standard of how to label ring...

There's no industry standard of how to label ring guards sizes. So until a specific ring guard is placed against your ring you really don't know how much larger across the guard is compared to the...
07-21-21, 10:35 PM
Replies: 7
Views: 216
Posted By Andrew R Stewart

Not mentioned is whether the old crank and new...

Not mentioned is whether the old crank and new one share the same "end of BB axle to center of the rings" dimension. Of course this isn't listed in any spec list I've ever seen. Chain line is the...
07-21-21, 07:33 AM
Replies: 8
Views: 229
Posted By Andrew R Stewart

Yes, but assume the chain will need replacement...

Yes, but assume the chain will need replacement too as chains and cog sets both wear with use. Also always check der adjustment when any gear system part is replaced. Andy
07-20-21, 08:50 PM
Replies: 61
Views: 2,399
Posted By Andrew R Stewart

It's not complicated to get brass filler rings...

It's not complicated to get brass filler rings that fit within the joint during prep. Alignment can be handled by a few methods including pins or jigging. Torch application stations with timed cycles...
07-20-21, 07:53 PM
Replies: 12
Views: 417
Posted By Andrew R Stewart

I admit to not understanding the design of this...

I admit to not understanding the design of this suspension fork. Yes, that's what it is even if the moving elements are in the head tube VS the blades. And even if the industry chooses a different...
07-19-21, 08:18 PM
Replies: 12
Views: 417
Posted By Andrew R Stewart

So there's a solid structure from the drop outs...

So there's a solid structure from the drop outs to the headset's bearing contact surfaces? Like a rigid fork and the sliding aspect is not between the headset and drop outs? I think not. Where...
07-19-21, 06:00 PM
Replies: 2
Views: 92
Posted By Andrew R Stewart

I don't think I have ever seen a coaster or IGH 3...

I don't think I have ever seen a coaster or IGH 3 splined cog in anything but steel. As to color anything will be black in time and negligence:)

But the OP's choice of subject line does confuse...
07-18-21, 10:50 PM
Replies: 9
Views: 268
Posted By Andrew R Stewart

I'll also add that road and MtB frt ders (by...

I'll also add that road and MtB frt ders (by Shimano) have rather different chain ring sizes they are optimized for. Also some MtB cranks space their rings apart more then some road ones. Andy
07-18-21, 08:58 PM
Replies: 12
Views: 417
Posted By Andrew R Stewart

"I thought with the additional cost of the bike,...

"I thought with the additional cost of the bike, it would be a longer lasting vehicle before having to rebuild it" Baldy1953

Longer then what? Back in the early 1980s I was told a story (that I...
07-18-21, 08:43 PM
Replies: 5
Views: 200
Posted By Andrew R Stewart

I should have also mentioned that your helmet...

I should have also mentioned that your helmet (you were wearing one...) should be checked for any signs of contact. Like an eggshell it's only good for one whack. Andy
07-17-21, 09:43 PM
Replies: 5
Views: 190
Posted By Andrew R Stewart

Most don't. However if you live in a high salt...

Most don't. However if you live in a high salt area (coasts and snowy places) and the bike will see outside use when the salt is about a thin film of something to inhibit corrosion is not wrong.
...
07-17-21, 08:35 PM
Replies: 4
Views: 180
Posted By Andrew R Stewart

I can't tell by the photos if the caliper has a...

I can't tell by the photos if the caliper has a star washer between the last threaded piece (with the sort of knurling about it's edge) and the fork face. Brake star washers are not the flimsy lock...
07-17-21, 06:21 PM
Replies: 61
Views: 2,399
Posted By Andrew R Stewart

At the risk of seeming self centered... I'll...

At the risk of seeming self centered... I'll quote myself from post #23 "In real life of making frames (from steel) these joining methods chosen are much more about cost, builder's skills, marketing...
07-17-21, 06:17 PM
Replies: 61
Views: 2,399
Posted By Andrew R Stewart

And there is a critical temp that these air...

And there is a critical temp that these air hardening steels have to be heated to for this to happen. IIRC the low brazing temps of silver isn't high enough. But this has nothing to do with the...
07-17-21, 06:14 PM
Replies: 18
Views: 416
Posted By Andrew R Stewart

Being the first self made wheel set I strongly...

Being the first self made wheel set I strongly suggest LockTite is not used. Many, including me, have used oil or grease on tens of thousands of wheels with no issues. For customer wheels I generally...
07-17-21, 06:11 PM
Replies: 5
Views: 200
Posted By Andrew R Stewart

I would check everything you can. Accidents can...

I would check everything you can. Accidents can sometimes cause damage that is not obvious. Spin the wheels for rim issues. Look at tire sidewalls. Track the cables beginning to their ends. Look at...
07-17-21, 05:55 PM
Replies: 4
Views: 180
Posted By Andrew R Stewart

Wrong tool for this job. Shimano calipers that...

Wrong tool for this job. Shimano calipers that use this version of the center bolt (where the slop between the arms are set and locked by the threaded pieces behind the arms) are usually centered by...
07-17-21, 05:45 PM
Replies: 12
Views: 417
Posted By Andrew R Stewart

With a suspension fork one has to be sure any...

With a suspension fork one has to be sure any perceived movement between the bars and tire is not the fork stanchions and lower legs become sloppy. One way to do this is to do the lock ft brake on...
07-16-21, 06:12 PM
Replies: 2
Views: 264
Posted By Andrew R Stewart

Back in the very late 1970s, or 1980ish, there...

Back in the very late 1970s, or 1980ish, there was a formed hard plastic drop bar grip called "Morgan Grips". We called them moron grips, not PC in today's view. They were a pain to install as they...
07-16-21, 08:36 AM
Replies: 61
Views: 2,399
Posted By Andrew R Stewart

By applying the "nice frames" filter you...

By applying the "nice frames" filter you eliminate the vast majority of bikes made, sold and used. Andy
07-16-21, 08:35 AM
Replies: 2
Views: 83
Posted By Andrew R Stewart

I suspect the clearances differences will be...

I suspect the clearances differences will be rather small between 3x and 2x. Andy
07-16-21, 08:34 AM
Replies: 9
Views: 216
Posted By Andrew R Stewart

Pletscher Inova Rack buy online - bike-components...

Pletscher Inova Rack buy online - bike-components (https://www.bike-components.de/en/Pletscher/Inova-Rack-p40422/)
Forum: Framebuilders
07-16-21, 07:54 AM
Replies: 12
Views: 350
Posted By Andrew R Stewart

Tube wall changes (butting) does not indicate any...

Tube wall changes (butting) does not indicate any greater strength, or less strength. just that the walls did change. BTW most lower cost blades start as a tube with a constant diameter and wall...
07-16-21, 07:44 AM
Replies: 61
Views: 2,399
Posted By Andrew R Stewart

"and lugs are now an unmistakable sign of a...

"and lugs are now an unmistakable sign of a handmade frame" hydrocarbon

There are millions of lugged bikes that were machine brazed. The machine provided heat and filler came before the current...
07-16-21, 07:38 AM
Replies: 5
Views: 228
Posted By Andrew R Stewart

Many floor pumps have what's known as a check...

Many floor pumps have what's known as a check valve in their base. A valve that lets the compressed air travel from the cylinder to the hose but stops air from going the other direction. BTW a Presta...
07-16-21, 07:32 AM
Replies: 9
Views: 216
Posted By Andrew R Stewart

Is Starbike.com the only source for this rack? if...

Is Starbike.com the only source for this rack? if there are other sources why not just return the rack to Starbike and get the rack elsewhere?

Which version of Pletcher racks are you wanting?...
07-16-21, 07:24 AM
Replies: 8
Views: 176
Posted By Andrew R Stewart

This stem has a single bolt handle bar clamp,...

This stem has a single bolt handle bar clamp, just like millions of stems made over the many decades before current time. Nothing unique or special. To remove the bars from the stem one loosens the...
07-15-21, 06:10 PM
Replies: 61
Views: 2,399
Posted By Andrew R Stewart

[QUOTE=shahidbashir92;22143146]In the case of...

[QUOTE=shahidbashir92;22143146]In the case of bike frame lugs, the brazing is under sheer forces only - as the tubes are inserted into the lug. The joint will be as strong as the metal of which the...
Forum: Framebuilders
07-14-21, 09:23 PM
Replies: 12
Views: 350
Posted By Andrew R Stewart

This!!! This aspect of human thinking is at the...

This!!! This aspect of human thinking is at the root of so many issues. The lack of awareness is under one's radar until the "thing" happens to them. As the legal community says, "ignorance is no...
07-14-21, 09:18 PM
Replies: 5
Views: 230
Posted By Andrew R Stewart

Some US bikes used a headset spec that is not...

Some US bikes used a headset spec that is not often talked about. BMX, Schwinn being names for it sometimes. I suggest learning about various specs from Sheldon Brown's site or from Sutherlands...
07-14-21, 09:10 PM
Replies: 5
Views: 201
Posted By Andrew R Stewart

Is this the bonded insert (within the carbon...

Is this the bonded insert (within the carbon frame) that houses the actual BB unit? No surprise about the lack of tech service from an on line company selling a service intensive device. Andy
07-14-21, 09:07 PM
Replies: 8
Views: 293
Posted By Andrew R Stewart

The #1 aspect of a truing stand that I have...

The #1 aspect of a truing stand that I have settled on is being solid and not a flexible fixture. Being able to handle the needed axle designs and rim diameters is also a given. What is low on my...
07-14-21, 09:01 PM
Replies: 8
Views: 263
Posted By Andrew R Stewart

The usual possibilities come to mind. Cable...

The usual possibilities come to mind. Cable friction being #1. bent hanger or cage pivot is #2. Cable clamping mistake #3. Andy
Forum: Framebuilders
07-14-21, 07:26 PM
Replies: 12
Views: 350
Posted By Andrew R Stewart

Both the photos show a poorly designed caliper...

Both the photos show a poorly designed caliper mounting bracket, with no stress spreading up the blade tail aspect. I will also speculate that the fork blades used in the failed images are of thinner...
Forum: Framebuilders
07-14-21, 07:16 PM
Replies: 5
Views: 188
Posted By Andrew R Stewart

Crimping 753 chainstays - Bike Forums...

Crimping 753 chainstays - Bike Forums (https://www.bikeforums.net/framebuilders/1228092-crimping-753-chainstays.html#post22022444) this is a link to a past thread that I posted my various crimping...
Forum: Framebuilders
07-14-21, 05:55 PM
Replies: 4
Views: 193
Posted By Andrew R Stewart

I do little SS work but I generally use 56%...

I do little SS work but I generally use 56% silver assuming the contact surface area is sufficient. 50N is another silver filler (w/ nickel IIRC) that is SS friendly. It is what food SS service...
07-13-21, 09:22 PM
Replies: 8
Views: 186
Posted By Andrew R Stewart

Wow, this takes me back... I started my LBS life...

Wow, this takes me back... I started my LBS life just as the Bendix kick back hubs were loosing favor. IIRC one of the 3 versions had a spring (formed flat sheet type) that would break often enough...
07-13-21, 09:07 PM
Replies: 7
Views: 200
Posted By Andrew R Stewart

I am one who dislikes Bio Pace and other non...

I am one who dislikes Bio Pace and other non round rings in general. Have for decades (and before Bio Pace was introduced).Some of us are rather sensitive to how we pedal, how our legs move. The Bio...
07-13-21, 07:21 AM
Replies: 7
Views: 200
Posted By Andrew R Stewart

Previous post? Are you referencing...

Previous post?

Are you referencing Shimano's Bio Pace ring design?

If so they are more "egg" shaped, not oval. Andy
Showing results 1 to 50 of 1000
 


 
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