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Search: Posts Made By: Andrew R Stewart
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03-18-24, 08:44 AM
Replies: 25
Views: 348
Posted By Andrew R Stewart

This! Santana even use to offer a riser adaptor...

This! Santana even use to offer a riser adaptor for their customers, I've installed a few when I worked at Allstar in Raleigh. I've also installed one for a second level of handlebar mounted...
Forum: Framebuilders
03-17-24, 08:45 PM
Replies: 1
Views: 71
Posted By Andrew R Stewart

Riveted on frame parts are not common replacement...

Riveted on frame parts are not common replacement parts even from the better brands, sadly to say my experience with the various Bianchi USA versions best practice dealer support wasn't the norm......
03-15-24, 06:54 AM
Replies: 16
Views: 322
Posted By Andrew R Stewart

My solution is to just run the casing outside the...

My solution is to just run the casing outside the tube. Andy
Forum: Framebuilders
03-14-24, 03:28 PM
Replies: 4
Views: 211
Posted By Andrew R Stewart

Rustoleum Spraying Questions

Not rattle can but proper HVLP gun sprayed. I am beginning my slow learning/reacquaintance with compressor fed spraying. I have chosen Rustoleum brush on canned paint for it's low cost. So much of my...
Forum: Framebuilders
03-14-24, 01:16 PM
Replies: 32
Views: 589
Posted By Andrew R Stewart

The understanding of speed shimmy that I have...

The understanding of speed shimmy that I have come to believe in is it's being a harmonic vibration/oscillation and that by changing the frequency the parts can vibrate at can disrupt/change the...
03-14-24, 07:49 AM
Replies: 28
Views: 553
Posted By Andrew R Stewart

Evapo-Rust will convert the rust to a benign...

Evapo-Rust will convert the rust to a benign substance without harming any other materials. It is available in local hardware stores. Andy

The Best Rust Remover | Quick & Easy with CRC's...
Forum: Framebuilders
03-13-24, 08:35 PM
Replies: 32
Views: 589
Posted By Andrew R Stewart

The quote I like about very flexible frames and...

The quote I like about very flexible frames and down hill speeds was what Andy Hampsted said. Something like "the only thing worse than climbing without a TI bike is descending on one". Andy
03-13-24, 08:21 PM
Replies: 12
Views: 208
Posted By Andrew R Stewart

My experience and understanding is that the...

My experience and understanding is that the biggest issue with swapping back and forth between ISO and JIS and back again is that the JIS axle end would sit slightly inboard of where the ISO axle's...
03-13-24, 11:36 AM
Replies: 12
Views: 208
Posted By Andrew R Stewart

The 1990s Campy Ergo levers can have an issue...

The 1990s Campy Ergo levers can have an issue with the lever (the G springs engaging the index wheel) being able to hold that last click of the front lever when shifting into the big ring. Ders that...
Forum: Framebuilders
03-12-24, 09:51 AM
Replies: 32
Views: 589
Posted By Andrew R Stewart

I went through a "how light can I build a frame"...

I went through a "how light can I build a frame" period only a couple of years after starting out. Not as extreme as some here have done (Mark I'm talking about you:)) but I got down to around .4/.7...
03-12-24, 09:33 AM
Replies: 6
Views: 195
Posted By Andrew R Stewart

For a rear hub/wheel there's about 3X the...

For a rear hub/wheel there's about 3X the increase of leverage/play between the axle and the rim.

One of the really neat aspects of a cartridge bearing (be they radial or angular contact and ball...
03-11-24, 09:24 PM
Replies: 14
Views: 19,045
Posted By Andrew R Stewart

Raleigh used what they called 1020 tubing at one...

Raleigh used what they called 1020 tubing at one time for their lower level road bikes. We use to joke that the 2040 French tubing was twice as good:)

I never placed too much value on much of the...
03-11-24, 05:26 PM
Replies: 14
Views: 19,045
Posted By Andrew R Stewart

Andy

Andy
03-11-24, 05:07 PM
Replies: 5
Views: 179
Posted By Andrew R Stewart

I suspect that the bearings, regardless of the...

I suspect that the bearings, regardless of the design, have a "seal" between the rolling elements and the wild outside.

Even low grade cup and cone bearings can last a long time, IF the rider...
03-11-24, 10:59 AM
Replies: 15
Views: 343
Posted By Andrew R Stewart

Growing up I was told by a few older wrenches of...

Growing up I was told by a few older wrenches of a local auto mechanic that "burned off his face" when working on a tire that had been reinflated with an aerosol. Seems that fix a flat (note the...
Forum: Framebuilders
03-11-24, 08:47 AM
Replies: 17
Views: 424
Posted By Andrew R Stewart

I strongly suggest you use a filler that your are...

I strongly suggest you use a filler that your are comfortable with. A well brazed joint that's not done cold, or not overheated and not taking too long to do (time at temp) is more than strong enough...
03-10-24, 05:17 PM
Replies: 2
Views: 153
Posted By Andrew R Stewart

These fitting shims are held in place by a couple...

These fitting shims are held in place by a couple small patches of double sided adhesive foam/tape. A simple hard pull or slight prying should release them from the metal clamp. Andy
03-09-24, 08:45 AM
Replies: 10
Views: 306
Posted By Andrew R Stewart

Duragrouch- Delta use to offer those levers, one...

Duragrouch- Delta use to offer those levers, one of the Asian forging companies produced them and house labeled them as their clients wanted. IIRC the levers lost out to shorter 2 or 3 fingered...
03-08-24, 10:18 AM
Replies: 10
Views: 306
Posted By Andrew R Stewart

"Speed Dial is more about adjusting brake feel...

"Speed Dial is more about adjusting brake feel rather than converting between long and short pull." grumpus

yet when these came out it was the ability to accommodate both short and long pull...
03-08-24, 08:47 AM
Replies: 10
Views: 306
Posted By Andrew R Stewart

And this is why we ask for more data than mere...

And this is why we ask for more data than mere model names.

Duragrouch- The adjustable cable end seating to lever pivot dimension has been done on other levers for decades. Likely the best known...
03-07-24, 08:52 PM
Replies: 10
Views: 306
Posted By Andrew R Stewart

Which version of brake are design are your Altus...

Which version of brake are design are your Altus levers mead for. They should have a part number which with some homework will tell you is they are for a canti or a linear system.

Canti intended...
03-06-24, 09:20 PM
Replies: 23
Views: 468
Posted By Andrew R Stewart

Does the frame have a metal insert at the post...

Does the frame have a metal insert at the post binder/top of seat tube? Is there wear on that lip that coincides with the post 's indents (and that's what they look to me)? Would just filing off the...
03-05-24, 09:43 PM
Replies: 23
Views: 468
Posted By Andrew R Stewart

Without a photo it's not happening:) post a shot...

Without a photo it's not happening:) post a shot to the gallery or a third party sharing site and let us know.

The seat post clamps that I have dealt with have a lip that is less than the tube...
03-05-24, 08:05 PM
Replies: 23
Views: 531
Posted By Andrew R Stewart

Differing amounts of thread cutting/chasing and...

Differing amounts of thread cutting/chasing and grit/grime build up can be common enough reasons to feel different efforts on either side.

What brand/type of BB did you install? Some have plastic...
Forum: Framebuilders
03-05-24, 07:06 PM
Replies: 17
Views: 424
Posted By Andrew R Stewart

As long as the fillet is 3x the wall thickness...

As long as the fillet is 3x the wall thickness guideline I have nearly never seen a failed fillet joint that wasn't also poorly brazed. More usual is a tube issue in the HAZ. While I grew up loving...
Forum: Framebuilders
03-05-24, 06:57 PM
Replies: 17
Views: 424
Posted By Andrew R Stewart

Thanks for following up. A bunch of years ago...

Thanks for following up. A bunch of years ago there were a few segmented fork failures that were posted and talked about on various forums. They have been referenced every so often since and it seems...
Forum: Framebuilders
03-05-24, 08:36 AM
Replies: 17
Views: 424
Posted By Andrew R Stewart

Do you remember the wall thicknesses of the...

Do you remember the wall thicknesses of the various tubes? Andy
Forum: Framebuilders
03-05-24, 08:35 AM
Replies: 17
Views: 424
Posted By Andrew R Stewart

First I ask what is meant by "steerer angle"? Do...

First I ask what is meant by "steerer angle"? Do you mean head tube steering angle? If so the fork has nothing to do with that but that frame angle does locate the fork at that angle, to establish...
Forum: Framebuilders
03-05-24, 08:24 AM
Replies: 5
Views: 166
Posted By Andrew R Stewart

https://longshen.tange-design.com/webfile/longshen...

https://longshen.tange-design.com/webfile/longsheng/b202310261353181816_.jpg

Is this the style of crown you're looking for? Andy
Forum: Framebuilders
03-05-24, 08:10 AM
Replies: 5
Views: 166
Posted By Andrew R Stewart

One could always become a true business that...

One could always become a true business that imports products. All kinds of permits, regulations, insurance and business letters of credit (or the international equivalent) would likely be needed...
03-05-24, 08:02 AM
Replies: 86
Views: 2,009
Posted By Andrew R Stewart

"What I'd like is a chain with actual bushings...

"What I'd like is a chain with actual bushings inside the rollers like (I think) pre-derailleur bikes," Duragrouch

Almost. Roller/bushinged chains were the common der chains for decades, until the...
Forum: Framebuilders
03-04-24, 06:12 PM
Replies: 15
Views: 586
Posted By Andrew R Stewart

Today I had the urge to have an outside vise....

Today I had the urge to have an outside vise. Would have to be on casters or be able to be hand carted around, leveling feet because vise rock is just sad. Andy (rode in 70*F weather today then...
Forum: Framebuilders
03-04-24, 09:47 AM
Replies: 15
Views: 586
Posted By Andrew R Stewart

If the cost for this jig really is only $100 the...

If the cost for this jig really is only $100 the materials and base are worth it alone. Andy
03-04-24, 09:42 AM
Replies: 86
Views: 2,009
Posted By Andrew R Stewart

I'm no lubricant expert but I do observe the...

I'm no lubricant expert but I do observe the world and see what others have done for generations before. Wax as a chain lube has had the issue of long term corrosion protection ever since I first...
03-04-24, 09:28 AM
Replies: 20
Views: 427
Posted By Andrew R Stewart

Back in the day we just leaned over the bike and...

Back in the day we just leaned over the bike and watched for when the pedal touched the ground, then we "measured" the angle between the seat tube and the road. Andy (who has sharpened his Campy...
03-04-24, 09:23 AM
Replies: 22
Views: 612
Posted By Andrew R Stewart

Sorry if I was thinking in Fahrenheit. But I do...

Sorry if I was thinking in Fahrenheit. But I do provide my location for those who might want further indication when I forget to specify. Perhaps I can blame my stove's manufacturer:)

A common...
03-03-24, 10:23 PM
Replies: 86
Views: 2,009
Posted By Andrew R Stewart

A real reason why wax is not as long lasting as...

A real reason why wax is not as long lasting as an oil can be is its lack of flow. Wax gets scuffed/rubbed/scraped off the chain's surfaces in use and wax being a solid the now bare spots won't...
03-03-24, 03:40 PM
Replies: 11
Views: 293
Posted By Andrew R Stewart

I would find a Wheels Manufacturing replacement...

I would find a Wheels Manufacturing replacement axle, cutting it to size if needed. There's no reason except preference to retain the Campy brand for an axle. I ran Campy NR hubs for a few decades...
03-03-24, 09:39 AM
Replies: 10
Views: 264
Posted By Andrew R Stewart

I might speculate that this fork has been service...

I might speculate that this fork has been service tested and has passed.

At first I thought the steerer had been squeezed (like in a vise) to ovalize the top/open end. But reading that the wall...
03-02-24, 10:04 AM
Replies: 22
Views: 612
Posted By Andrew R Stewart

I have mounted a small bench vise on a roughly...

I have mounted a small bench vise on a roughly 1'x3' board and then use pipe clamps to hold this board on top of another table (kitchen:)). A quick way to get a solid vise and also store it away in a...
03-01-24, 09:18 PM
Replies: 22
Views: 612
Posted By Andrew R Stewart

I didn't keep track of the shop servicings I have...

I didn't keep track of the shop servicings I have done over the years. That's the job of the shop. But it was fairly early on in the cartridge bearing freehub era with Mavic ones. One of the first I...
03-01-24, 12:34 PM
Replies: 12
Views: 310
Posted By Andrew R Stewart

Rear wheel likely has stainless spokes and the...

Rear wheel likely has stainless spokes and the front has galvanized spokes (not of a stainless alloy, thus is magnetic).

I like the dig at those of us who ask for more information, you did ...
03-01-24, 12:31 PM
Replies: 31
Views: 848
Posted By Andrew R Stewart

"I know that no offense was intended in this...

"I know that no offense was intended in this comment, or in some of the other comments questioning my ability to use a caliper, and no offense was taken, but I have to stand up for myself at least a...
03-01-24, 12:15 PM
Replies: 31
Views: 848
Posted By Andrew R Stewart

I have yet to see a production post sizing gage...

I have yet to see a production post sizing gage that has the diameter steps being long enough to go past the lug's bottom edge. Measuring anything above this point and claiming that measurement is...
03-01-24, 12:08 PM
Replies: 35
Views: 1,065
Posted By Andrew R Stewart

Yan- I know the personal satisfaction one gets...

Yan- I know the personal satisfaction one gets when riding one's own work, especially when on a bucket list ride. Mine was going nearly cross country on my self made touring bike.

I guess my...
03-01-24, 08:46 AM
Replies: 35
Views: 1,065
Posted By Andrew R Stewart

And it is this exact assumption that...

And it is this exact assumption that wheelbuilders take issue with. That outward appearance is the final say of skill and quality. Much like not reading the book because you already know the story by...
03-01-24, 08:41 AM
Replies: 22
Views: 612
Posted By Andrew R Stewart

The couple handfulls of freehub bearing...

The couple handfulls of freehub bearing replacements I've done often found the bearing was so tightly held that I resorted to heating the FH body in an oven (about 250* for 15 minutes or so) to...
03-01-24, 08:35 AM
Replies: 31
Views: 848
Posted By Andrew R Stewart

Yes, terms matter and the "seat post" is really...

Yes, terms matter and the "seat post" is really the frame's "seat tube".

I see chips on the seat lug's ears right where one might place the tip od a screwdriver to try to pry out/bigger the seat...
02-29-24, 01:42 PM
Replies: 11
Views: 308
Posted By Andrew R Stewart

Personally I would chose to take advantage of 40+...

Personally I would chose to take advantage of 40+ years of development and patents expiring and get a Shimano Acera/Altus with a hanger plate (the old Positron's is welded to the shaft of the top...
02-29-24, 01:30 PM
Replies: 35
Views: 1,065
Posted By Andrew R Stewart

A tolerance aspect that I am very picky about is...

A tolerance aspect that I am very picky about is that of the rim's brake tracks. They should be both consistent width and remain smooth at the seam. Nether have much if anything to do with what we...
Showing results 1 to 50 of 1000
 


 
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