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Search: Posts Made By: Andrew R Stewart
Showing results 1 to 50 of 1000
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Forum: Bicycle Mechanics
10-30-24, 08:18 PM
Replies: 7
Views: 239
Posted By Andrew R Stewart

Does the center/mounting bolt tighten with the...

Does the center/mounting bolt tighten with the recessed nut? If a single pivot does the center bolt portion that the spring is contained in stay tight WRT the center bolt, and thus the frame? Please...
Forum: Bicycle Mechanics
10-29-24, 08:43 AM
Replies: 13
Views: 381
Posted By Andrew R Stewart

Many shift and brake controls are integrated...

Many shift and brake controls are integrated together. Only part jokingly I ask "where have you been the last 30 years?". Shimano's STI, Campy's Ergo and SRAM's double tap are examples of integrated...
Forum: Bicycle Mechanics
10-28-24, 08:01 AM
Replies: 9
Views: 315
Posted By Andrew R Stewart

Shimano's solution was to produce a "silent...

Shimano's solution was to produce a "silent clutch" series of hubs. These hubs use a roller clutch design that has no pawls slapping about or start drives clacking away. These hubs were/are favorites...
Forum: Bicycle Mechanics
10-28-24, 07:56 AM
Replies: 6
Views: 177
Posted By Andrew R Stewart

The old way was to use math, trig, to calculate...

The old way was to use math, trig, to calculate out the different handle bar centers with different stems. I believe that there's a stem change calculator out there on the interweb that only needs to...
Forum: Bicycle Mechanics
10-28-24, 07:36 AM
Replies: 15
Views: 396
Posted By Andrew R Stewart

awac- I have used this method as a quick...

awac- I have used this method as a quick diagnostic tool for customer bikes. I would use a "blank" gift card and insert the spacers in front of the customer then send them out for a test ride. I say...
Forum: Bicycle Mechanics
10-27-24, 07:42 AM
Replies: 6
Views: 226
Posted By Andrew R Stewart

A good example of why a photo for ID purposes is...

A good example of why a photo for ID purposes is a nice idea. Andy
Forum: Bicycle Mechanics
10-27-24, 07:41 AM
Replies: 15
Views: 396
Posted By Andrew R Stewart

My "solution" is to cut up old credit cards and...

My "solution" is to cut up old credit cards and place the little squares between the spokes. Much like paper squares but far longer lasting. A friend has run his front wheel for thousands of miles...
Forum: Framebuilders
10-26-24, 08:13 AM
Replies: 33
Views: 682
Posted By Andrew R Stewart

People will believe what a label says till they...

People will believe what a label says till they learn otherwise. (like bicycle "specific" greases are actually unique to the bike world). Andy
Forum: Bicycle Mechanics
10-26-24, 08:06 AM
Replies: 13
Views: 533
Posted By Andrew R Stewart

"Do you mean that I could have tightened the seat...

"Do you mean that I could have tightened the seat bolt too tightly? I had to pry the clamp apart with a screwdriver after removing the bolt, it was so tight." --AP

This is the clamp that secures...
Forum: Bicycle Mechanics
10-24-24, 08:09 AM
Replies: 7
Views: 318
Posted By Andrew R Stewart

The hubs that use this design that I have dealt...

The hubs that use this design that I have dealt with were fine and reliable when the DS axle spacer/nut was properly tightened. Without better photos and Xray vision I won't say if the splines or...
Forum: Bicycle Mechanics
10-24-24, 08:02 AM
Replies: 13
Views: 533
Posted By Andrew R Stewart

Things happen all the time. Sometimes the "thing"...

Things happen all the time. Sometimes the "thing" happens long before the problem is made known. The seat rails might have been comprised right from the factory, or even the base material of the...
Forum: Bicycle Mechanics
10-24-24, 07:44 AM
Replies: 15
Views: 401
Posted By Andrew R Stewart

Only tangentially related but needs to be said...

Only tangentially related but needs to be said and this thread has reached that point. Rear QR levers should be positioned so that the lever points up and/or forward. On the front it is up/backwards....
Forum: Bicycle Mechanics
10-21-24, 07:37 AM
Replies: 15
Views: 401
Posted By Andrew R Stewart

A simple cap over the hitch post would offer...

A simple cap over the hitch post would offer protection. In fact why don't someone sue the manufacturer for not including a cover cap for when the trailer is not attached. Andy (who is being somewhat...
Forum: Bicycle Mechanics
10-21-24, 07:34 AM
Replies: 12
Views: 422
Posted By Andrew R Stewart

I've found far more thread lockered ring bolts...

I've found far more thread lockered ring bolts that were loose on service jobs to think that thread locker is the cure to a lack of maintenance/periodic checking. I've also oiled or greased nearly...
Forum: Bicycle Mechanics
10-20-24, 11:28 AM
Replies: 9
Views: 306
Posted By Andrew R Stewart

The early versions of Trek's bonded frames didn't...

The early versions of Trek's bonded frames didn't have a replaceable dropout hanger and with the dropout. Being Al they did wear from the QR and axle ends if allowed to move about, were more easily...
Forum: Bicycle Mechanics
10-20-24, 11:17 AM
Replies: 19
Views: 627
Posted By Andrew R Stewart

IME the Bontrager rims thar had serious cracking...

IME the Bontrager rims thar had serious cracking issues were the paired spoke design BUT without any nipple hole eyelets. IIRC the eyeletted version (as imaged by the OP) are, while lighter., longer...
Forum: Framebuilders
10-17-24, 09:36 AM
Replies: 15
Views: 900
Posted By Andrew R Stewart

Mike- Thanks for the words of support. When I...

Mike- Thanks for the words of support. When I read "look it up grasshopper" I started to take issue but I then say who was writing it (and I am a grasshopper to Mike) and also figured he writes for...
Forum: Framebuilders
10-16-24, 09:13 PM
Replies: 15
Views: 900
Posted By Andrew R Stewart

Final report and what you all have been waiting...

Final report and what you all have been waiting for: the list of mistakes and what i should have dones.

First let's see some close ups. ...
Forum: Bicycle Mechanics
10-16-24, 08:03 AM
Replies: 9
Views: 341
Posted By Andrew R Stewart

For this to happen and the stem clamp bolts (it...

For this to happen and the stem clamp bolts (it is a threadless headset, right?) not coming loose as well suggests that something has shrunken doe to the colder air. I highly doubt this is the case....
Forum: Framebuilders
10-14-24, 06:55 PM
Replies: 15
Views: 900
Posted By Andrew R Stewart

Here's some catch up after the end the last post....

Here's some catch up after the end the last post.

I began to sand the paint patch. I should have applied a clear coat but ran out of time and just went with the paint to sand. I taped off the...
Forum: Bicycle Mechanics
10-14-24, 12:59 PM
Replies: 10
Views: 343
Posted By Andrew R Stewart

Independent of original "quality" the condition...

Independent of original "quality" the condition is also a very important part of judgment you ask about. How are the axle and freehub body bearings and how much brake track wear is there? Are there...
Forum: Framebuilders
10-14-24, 12:47 PM
Replies: 14
Views: 574
Posted By Andrew R Stewart

Great shots! Thanks for the follow up. Andy

Great shots! Thanks for the follow up. Andy
Forum: Framebuilders
10-13-24, 09:01 AM
Replies: 14
Views: 574
Posted By Andrew R Stewart

I agree with the frame being now "dead". I didn't...

I agree with the frame being now "dead". I didn't think it was a Cannondale given the dropped rear top tube alone. I'll also bet the frame is 7005 (or sister alloy) and that the welds were done...
Forum: Bicycle Mechanics
10-12-24, 08:13 PM
Replies: 44
Views: 1,911
Posted By Andrew R Stewart

If you want the better/best quality of materials...

If you want the better/best quality of materials and construction in the parts you use and you don't want to stay current in the spec game then, yes, do stockpile the upper grade of parts your bikes...
Forum: Framebuilders
10-12-24, 02:39 PM
Replies: 6
Views: 377
Posted By Andrew R Stewart

"Only your painter knows for sure" I've...

"Only your painter knows for sure"

I've had a few painters tell me that they see a lot of minor pocks, pinholes and lug edge overhang then the reputation of those builders might suggest would be...
Forum: Bicycle Mechanics
10-10-24, 12:37 PM
Replies: 18
Views: 514
Posted By Andrew R Stewart

Bold added by me. I disagree. I've spent my adult...

Bold added by me. I disagree. I've spent my adult life cleaning bikes (usually called fixing them:)) and while I do like being able to take assemblies apart to do so there are many ways of...
Forum: Framebuilders
10-09-24, 08:10 PM
Replies: 15
Views: 900
Posted By Andrew R Stewart

After a couple of days and some consultation I...

After a couple of days and some consultation I decided to try the paint patching with an air brush. Not having one was solved by visiting my local hobby shop (in my youth I spent many hours in...
Forum: Bicycle Mechanics
10-09-24, 12:31 PM
Replies: 45
Views: 1,730
Posted By Andrew R Stewart

Last thoughts on the OP's success. being in the...

Last thoughts on the OP's success. being in the LBS world air impact tooling is an option I generally don't think of too soon. However in the last few years I have had to take a frame next door to...
Forum: Bicycle Mechanics
10-09-24, 12:28 PM
Replies: 45
Views: 1,730
Posted By Andrew R Stewart

Not the case if one handles the grinder well....

Not the case if one handles the grinder well. I've done this splitting the FW core by grinding, sadly, more than a couple of times and each time the hub threads showed only a very small removal of...
Forum: Bicycle Mechanics
10-09-24, 12:16 PM
Replies: 8
Views: 402
Posted By Andrew R Stewart

A really worn sloppy chain, WRT lateral play...

A really worn sloppy chain, WRT lateral play between the inner and outer side plates, can contribute to slow shifting. Shifting that is improved by over travel and trimming back. Which with most...
Forum: Bicycle Mechanics
10-09-24, 12:07 PM
Replies: 17
Views: 1,809
Posted By Andrew R Stewart

Any way to merge these two threads? This one and...

Any way to merge these two threads? This one and Cantilevers wont fit!!! 95 GT Pro Series 24"
Andy
Forum: Bicycle Mechanics
10-09-24, 12:01 PM
Replies: 5
Views: 469
Posted By Andrew R Stewart

I didn't take into account the 24" wheel size. On...

I didn't take into account the 24" wheel size. On a 20" (only the vast majority of the BMX bikes made) a canti generally sticks out too far for good heel clearance. Another reason to link to or...
Forum: Bicycle Mechanics
10-09-24, 08:32 AM
Replies: 5
Views: 469
Posted By Andrew R Stewart

I (and a lot others here, likely) suspect your...

I (and a lot others here, likely) suspect your BMX bike was intended for "U" brakes. Their posts are a single diameter that is larger than canti bosses. The U brake posts are also attached higher up...
Forum: Bicycle Mechanics
10-09-24, 08:24 AM
Replies: 41
Views: 1,613
Posted By Andrew R Stewart

And this is why humor is so vital in our daily...

And this is why humor is so vital in our daily world. Andy
Forum: Bicycle Mechanics
10-07-24, 08:48 AM
Replies: 68
Views: 2,809
Posted By Andrew R Stewart

"and yet, after the initial ride, the labels...

"and yet, after the initial ride, the labels appear to have not rotated symmetrically. sometimes one is @ 11:00 & the other @ 4:00. i don't know how this translates to digital versions." southpier
...
Forum: Framebuilders
10-03-24, 06:42 PM
Replies: 15
Views: 900
Posted By Andrew R Stewart

I've applied the black color and of course ran...

I've applied the black color and of course ran into a problem I could have avoided.

he primer (KD300x black) went on well as did the paint (Jet Black) and I was feeling good. On to the clear and...
Forum: Bicycle Mechanics
10-03-24, 09:00 AM
Replies: 45
Views: 1,730
Posted By Andrew R Stewart

Every so often a freewheel would be too hard to...

Every so often a freewheel would be too hard to remove even with two people working the wheel while the tool is held in a bench vise (for whatever reason, like having been on a tandem...) For the...
Forum: Bicycle Mechanics
10-03-24, 08:53 AM
Replies: 44
Views: 1,628
Posted By Andrew R Stewart

I have had so many similar discussions with...

I have had so many similar discussions with customers and fellow club riders over the years, about front shifting problems, and some have listened and tried what weas discussed and learned how to...
Forum: Framebuilders
09-30-24, 10:22 PM
Replies: 15
Views: 900
Posted By Andrew R Stewart

Since the last photo I shot the red color. This...

Since the last photo I shot the red color. This time I limited the area to reduce the after prep for the next color. The red is the two stage type, the color is the first stage and the gloss (clear)...
Forum: Framebuilders
09-29-24, 09:06 PM
Replies: 15
Views: 900
Posted By Andrew R Stewart

More Paint Efforts on Vitus

Got you to look, didn't I:) You thought this was going to be about One of the bonded Vitus Al frames, which many having been anodized would make an interesting paint project. No, this is about...
Forum: Framebuilders
09-28-24, 10:59 PM
Replies: 21
Views: 903
Posted By Andrew R Stewart

At least the "pro builder" left the lawyer lips...

At least the "pro builder" left the lawyer lips in place on the drop outs. The rest looks really poor. The quotes around "pro builder" suggest my opinion of a fabricator who let's work like this go...
Forum: Bicycle Mechanics
09-28-24, 08:14 PM
Replies: 21
Views: 621
Posted By Andrew R Stewart

There's virtually zero temperature increase of...

There's virtually zero temperature increase of bicycle bearings during use. There's just so little loading with so little RPMs. I've often thought that those noises that occur only at the beginning...
Forum: Bicycle Mechanics
09-28-24, 08:01 PM
Replies: 6
Views: 422
Posted By Andrew R Stewart

The vast majority of hybrids and MtBs that use...

The vast majority of hybrids and MtBs that use these link wires (and it's a LOT of bikes) have the shorter link wire on the rear brake. Usually due to the reduced distance from the casing hanger to...
Forum: Bicycle Mechanics
09-28-24, 08:01 AM
Replies: 44
Views: 1,628
Posted By Andrew R Stewart

It's hard for us to help those who don't want to...

It's hard for us to help those who don't want to do what the mechanisms need to work well. Every article, book, discussion (and that one is in the hundreds as I worked the service department in...
Forum: Bicycle Mechanics
09-28-24, 07:50 AM
Replies: 25
Views: 1,087
Posted By Andrew R Stewart

I will agree that these dropouts look to be...

I will agree that these dropouts look to be "better" than simple plate steel stampings. Given the shaping I suspect they have been "formed" by serious pressure, whether one calls that "forging" is...
Forum: Bicycle Mechanics
09-27-24, 08:11 PM
Replies: 4
Views: 361
Posted By Andrew R Stewart

IIRC that clamp/stand interface is basically a...

IIRC that clamp/stand interface is basically a plastic cone fitted into a plastic socket. Lots of surface contact with a soft material. Every similar Park stand I have used with this design have been...
Forum: Bicycle Mechanics
09-27-24, 07:55 PM
Replies: 4
Views: 451
Posted By Andrew R Stewart

One could bring their torque wrench to a shop or...

One could bring their torque wrench to a shop or other person with another one to compare.

I have felt that the torque listings are more about not going too far in one's tightening (going too...
Forum: Bicycle Mechanics
09-27-24, 07:48 PM
Replies: 25
Views: 1,087
Posted By Andrew R Stewart

No that's not what I was trying to say. "I view...

No that's not what I was trying to say. "I view dropout replacements not due to incident damage to be an indication that the bike might not be the better choice for the intended use" (me)

I am...
Forum: Bicycle Mechanics
09-26-24, 06:37 PM
Replies: 41
Views: 1,613
Posted By Andrew R Stewart

Two words: Zip Lock Bags (OK three words). Andy

Two words: Zip Lock Bags (OK three words). Andy
Forum: Bicycle Mechanics
09-26-24, 06:35 PM
Replies: 25
Views: 1,087
Posted By Andrew R Stewart

Dropout replacements (on a steel frame at least)...

Dropout replacements (on a steel frame at least) are one of those jobs that sounds so easy and pat but often turns out to be harder than expected, even when done by those with some building...
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