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Search: Posts Made By: Andrew R Stewart
Showing results 1 to 50 of 1000
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Forum: Framebuilders
04-26-24, 04:55 PM
Replies: 3
Views: 70
Posted By Andrew R Stewart

Do we know the tubing brand/version? Steel tubes...

Do we know the tubing brand/version? Steel tubes are pretty good with being bent a bit as long as: the cross sections remain large (no crimping/folds), the number of back and forth bending was few,...
Forum: Bicycle Mechanics
04-26-24, 08:52 AM
Replies: 4
Views: 102
Posted By Andrew R Stewart

Generally just over a 1/2" of adjustment is...

Generally just over a 1/2" of adjustment is needed as that's what the chain length units are. (Assuming a 1/2" pitch is being used which nearly all chain driven bike have these days). There's no...
Forum: Framebuilders
04-26-24, 08:28 AM
Replies: 9
Views: 169
Posted By Andrew R Stewart

Did I miss John T's post? Or is it in another...

Did I miss John T's post? Or is it in another thread? Andy
Forum: Framebuilders
04-25-24, 09:17 PM
Replies: 6
Views: 206
Posted By Andrew R Stewart

1" x.25" hot rolled strip. Here's a shot of the...

1" x.25" hot rolled strip. Here's a shot of the first practice of design from a couple years ago and one of the current pair made. When I decided to try disk brakes the traditional dropouts just...
Forum: Bicycle Mechanics
04-25-24, 01:42 PM
Replies: 38
Views: 751
Posted By Andrew R Stewart

I don't think we can make this assumption yet....

I don't think we can make this assumption yet. The frame can be straight, the chain and seat stays being the same length and centered laterally WRT the front triangle, but for some reason the wheel...
Forum: Bicycle Mechanics
04-25-24, 01:37 PM
Replies: 15
Views: 13,184
Posted By Andrew R Stewart

The issue with assuming a smaller tooth count,...

The issue with assuming a smaller tooth count, besides wear rate increase and that chordal effect I mentioned 4 years ago (post #8), will lead to more bike speed is that one also needs to be able to...
Forum: Framebuilders
04-25-24, 09:33 AM
Replies: 6
Views: 206
Posted By Andrew R Stewart

I don't have any experience with all the non USA...

I don't have any experience with all the non USA sources excepting CeeWay. I order from them every couple of years, and when I do I load up on extra product to both lower the per unit shipping cost...
Forum: Framebuilders
04-25-24, 09:00 AM
Replies: 9
Views: 169
Posted By Andrew R Stewart

What type of paint application are you using?...

What type of paint application are you using? Rattle can, brush on, compressor powered spray gun? What type of paint is already on the frame? Have you looked at paint types/brand limitations or...
Forum: For Sale
04-24-24, 09:33 AM
Replies: 5
Views: 436
Posted By Andrew R Stewart

Yes, however I am also aware of forum etiquette...

Yes, however I am also aware of forum etiquette and have though that posting for sale stuff away from this sub forum was one of those "grey areas". Since I don't frequent the C&V sub forum I didn't...
Forum: Bicycle Mechanics
04-23-24, 02:03 PM
Replies: 8
Views: 247
Posted By Andrew R Stewart

There's really a shade of grey WRT when a lube is...

There's really a shade of grey WRT when a lube is considered an oil VS a grease as greases and oils vary in their thickness. A thinner grease might be more injectable but it generally will then be...
Forum: Bicycle Mechanics
04-23-24, 01:54 PM
Replies: 38
Views: 751
Posted By Andrew R Stewart

If the wheel sits centered in the frame and if...

If the wheel sits centered in the frame and if the brake bosses are located in the same places of either side the brake pads generally are in the same spot in the arm's slots. The photo doesn't show...
Forum: Framebuilders
04-23-24, 07:59 AM
Replies: 5
Views: 216
Posted By Andrew R Stewart

I don't like the look of a wider top of the fork...

I don't like the look of a wider top of the fork blades compared to the dropout end too. But the parts in play (blade diameter at the top VS bottom), the amount of tire width and clearance, the...
Forum: Bicycle Mechanics
04-22-24, 02:17 PM
Replies: 25
Views: 527
Posted By Andrew R Stewart

"Shifting into the spokes" is a classic...

"Shifting into the spokes" is a classic indication of the chain's movement not being controlled properly. Once limit screws are set (or at least the low gear one) they rarely spin in their threads as...
Forum: Bicycle Mechanics
04-22-24, 12:18 PM
Replies: 25
Views: 527
Posted By Andrew R Stewart

A few comments- An aprox 15" gear (24x42 on...

A few comments-

An aprox 15" gear (24x42 on a "27" wheel") is a very low gear and one that being able to balance the bike (especially a tandem), at the 3ish MPH that this low ratio is often run...
Forum: Bicycle Mechanics
04-22-24, 10:03 AM
Replies: 35
Views: 898
Posted By Andrew R Stewart

This thread is beginning to drift into a "how to...

This thread is beginning to drift into a "how to do it right" and a "what's right" pissing session.

I would ask if the OP has yet tried to mount the tire and see what the actual fit up results...
Forum: For Sale
04-21-24, 07:28 PM
Replies: 5
Views: 436
Posted By Andrew R Stewart

Fuji Finest 1974 21"

Yes, a 49 year old Fuji for sale. In 1974 I bought a 1973 Finest, first bought bike with sew ups. Sold it a couple years later as it was a 23" and way big. Bought another, this time a 1976, and kept...
Forum: Bicycle Mechanics
04-21-24, 03:01 PM
Replies: 35
Views: 898
Posted By Andrew R Stewart

I had thought one of the differences between...

I had thought one of the differences between these and common butyl tubes was their inability to stretch much. As in the crossection/width had to match up pretty closely to that of the mounted tire....
Forum: Bicycle Mechanics
04-21-24, 08:44 AM
Replies: 4
Views: 228
Posted By Andrew R Stewart

Wasn't this recently asked about? Maybe the OP is...

Wasn't this recently asked about? Maybe the OP is shopping for the answer they want?

I wouldn't mess with the chance of a wheel coming loose or not being tightened well enough. As others have...
Forum: Bicycle Mechanics
04-16-24, 03:20 PM
Replies: 10
Views: 468
Posted By Andrew R Stewart

I lived in Santa Cruz for a few months (a long...

I lived in Santa Cruz for a few months (a long time ago) and had a chromed Fuji (Finest). My commute was only just over a mile but went down nearly 200+ feet to almost sea level and up nearly the...
Forum: Bicycle Mechanics
04-15-24, 08:11 AM
Replies: 10
Views: 468
Posted By Andrew R Stewart

The usual way to insure water is gone from...

The usual way to insure water is gone from threads is to wipe them off and let them evaporate off any remaining moisture. Using a water displacer (as in WD40) to further rinse/flow moisture off the...
Forum: Framebuilders
04-14-24, 04:16 PM
Replies: 3
Views: 268
Posted By Andrew R Stewart

Every paint formulation I have used for bikes had...

Every paint formulation I have used for bikes had its own recoat time. Many are like guy says, suggesting a recoat after set up but before fully dry or after fully dry (and then a fine wet/dry...
Forum: Bicycle Mechanics
04-14-24, 04:02 PM
Replies: 15
Views: 583
Posted By Andrew R Stewart

The two usual methods to secure loose balled (as...

The two usual methods to secure loose balled (as in no cartridge bearings) FHB to the hub shell is with a hollow bolt that is removed from the LH hub side or having a FHB with s threaded stud (again...
Forum: Bicycle Mechanics
04-12-24, 08:22 PM
Replies: 8
Views: 392
Posted By Andrew R Stewart

Unless the rivet in question is joining the cog...

Unless the rivet in question is joining the cog with a spyder/carrier. Andy
Forum: Bicycle Mechanics
04-12-24, 08:20 PM
Replies: 8
Views: 392
Posted By Andrew R Stewart

Yes. You might not have the tooling or skills. or...

Yes. You might not have the tooling or skills. or you might not be able to create a rivet with the minimal heads that the common cassette ones have. (Specific rivets for the application using...
Forum: Bicycle Mechanics
04-11-24, 11:46 AM
Replies: 5
Views: 206
Posted By Andrew R Stewart

Have you asked any bike shops if they can install...

Have you asked any bike shops if they can install a Helicoil? Some shops are good with this repair method, others would rather just sell a new arm. When done properly a Helicoil is stronger than the...
Forum: Bicycle Mechanics
04-11-24, 11:42 AM
Replies: 23
Views: 500
Posted By Andrew R Stewart

Really?? Common fact that molds and dies wear,...

Really?? Common fact that molds and dies wear, pre molded material mix varies the density somewhat with each batch, woven fibers vary some as well as their woven "tightness". It's called...
Forum: Framebuilders
04-09-24, 07:43 PM
Replies: 6
Views: 325
Posted By Andrew R Stewart

Good to see better photos. I agree with Eric, If...

Good to see better photos. I agree with Eric, If I were to consider fixing this I would likely replace the tubes. But I'd want to check out the rest of the frame first. Andy
Forum: Bicycle Mechanics
04-08-24, 09:32 PM
Replies: 13
Views: 506
Posted By Andrew R Stewart

I do much the same cleaning, sometimes working...

I do much the same cleaning, sometimes working the pawls with a pick to help the dissolving of the gummy grease in the pivot. Where i differ is in the lube after free pawl movement. I like oils with...
Forum: Bicycle Mechanics
04-08-24, 04:43 PM
Replies: 33
Views: 1,394
Posted By Andrew R Stewart

Just guessing but with so little to go on- That...

Just guessing but with so little to go on- That crack has been there for a while given the rust showing on the edges/face in photo 1 and 2. That the rest of the bike shows a lot of surface rust...
Forum: Bicycle Mechanics
04-07-24, 06:51 PM
Replies: 21
Views: 768
Posted By Andrew R Stewart

Do I see a front der with frozen pivots? The der...

Do I see a front der with frozen pivots? The der should be able to move in and out with only fingers proding it (and the cable not attached to or influencing it). Does it? If so this wouldn't be the...
Forum: Bicycle Mechanics
04-07-24, 06:34 PM
Replies: 5
Views: 334
Posted By Andrew R Stewart

Sure looks like the spring, if available, will...

Sure looks like the spring, if available, will just slip back in (after general cleaning and considering the other two springs' remaining life). But likely the springs are specific to the...
Forum: Bicycle Mechanics
04-07-24, 09:24 AM
Replies: 4
Views: 201
Posted By Andrew R Stewart

IME all Shimano indexed intended 8 cog cassettes...

IME all Shimano indexed intended 8 cog cassettes have had the same cog to cog center dimensions, they all are interchangeable WRT the cog spacing. The same for SRAM 8 speed cassettes and the two...
Forum: Bicycle Mechanics
04-06-24, 07:16 PM
Replies: 16
Views: 518
Posted By Andrew R Stewart

In my world vise grips are for holding stuff...

In my world vise grips are for holding stuff being ground or brazed more often than not. But they do have their place in the repair world, thankfully that place is small and easy to avoid many times....
Forum: Framebuilders
04-06-24, 07:58 AM
Replies: 13
Views: 569
Posted By Andrew R Stewart

Mike- I don't like AL's softness and crack...

Mike- I don't like AL's softness and crack propagation tendency. I don't like the increase of stiffness that is done to combat the fatigue limit problem. I don't like how one has to join it (rivets,...
Forum: Bicycle Mechanics
04-05-24, 09:22 PM
Replies: 16
Views: 518
Posted By Andrew R Stewart

When teaching people about truing wheels I often...

When teaching people about truing wheels I often suggest they "pick up" a wheel that they can practice on and not worry about their own bike.

I have to admit that I am a bit hesitant to strongly...
Forum: Bicycle Mechanics
04-03-24, 07:49 AM
Replies: 3
Views: 271
Posted By Andrew R Stewart

Generally freehubs tend to be specific to the...

Generally freehubs tend to be specific to the hubshell interface, which tends to be manufacturer (note I don't say brand) specific. So, a Shimano FHB won't fit a DT hub, as example. However, there...
Forum: Bicycle Mechanics
04-01-24, 07:51 AM
Replies: 7
Views: 417
Posted By Andrew R Stewart

Years ago when Bike World was still being...

Years ago when Bike World was still being published they would have an April Fools story each year. Yak butter derived chain lube (snuck out of the USSR no doubt) was one. Andy
Forum: Bicycle Mechanics
03-31-24, 08:10 PM
Replies: 5
Views: 221
Posted By Andrew R Stewart

In the shop the gold standard in searching for a...

In the shop the gold standard in searching for a noise is being able to finally reproduce the right forces on the bike to consistently create the noise. Then you can play with the method to fix. Keep...
Forum: Framebuilders
03-31-24, 07:52 PM
Replies: 20
Views: 1,081
Posted By Andrew R Stewart

Keep your fingers on the pulse of the used for...

Keep your fingers on the pulse of the used for sale on line sites. Used jigs of all sorts come up routinely. The challenge will be finding one close enough to not need shipping.

I know of a flat...
Forum: Bicycle Mechanics
03-30-24, 07:18 PM
Replies: 36
Views: 791
Posted By Andrew R Stewart

A few comments- I should have been more specific...

A few comments- I should have been more specific WRT galling and galvanic corrosion and how they might relate to BB cups and damage. galvanic corrosion will tend to freeze the cup in place and make...
Forum: Bicycle Mechanics
03-30-24, 08:05 AM
Replies: 36
Views: 791
Posted By Andrew R Stewart

One aspect of the more current factory assembled...

One aspect of the more current factory assembled BBs is that they are not intended to be serviced so they are considered disposable by most. For better or worse dependent on how you feel about...
Forum: Bicycle Mechanics
03-30-24, 07:48 AM
Replies: 28
Views: 1,198
Posted By Andrew R Stewart

Brakes are simple levers. There's no magic to...

Brakes are simple levers. There's no magic to their function. For the same dimensions (pivot boss to pad VS pivot to arm's end/cable connection) the brake will have the same leverage. Only if the...
Forum: Bicycle Mechanics
03-28-24, 10:19 AM
Replies: 10
Views: 293
Posted By Andrew R Stewart

1- most freehub bodies are brand, hub model...

1- most freehub bodies are brand, hub model specific. I would assume only one FHB will work with this hub.
2- I suspect the FHB is trapped between the axle (and the different diameter steps along...
Forum: Bicycle Mechanics
03-28-24, 07:11 AM
Replies: 28
Views: 853
Posted By Andrew R Stewart

You can do whatever you like, already did some. ...

You can do whatever you like, already did some.

Front axle ejection from a downward facing dropout is a well known possible safety issue. So much so that all kinds of preventative methods are used...
Forum: Bicycle Mechanics
03-27-24, 04:36 PM
Replies: 10
Views: 293
Posted By Andrew R Stewart

Peter, Peter couldn't you at least clean the...

Peter, Peter couldn't you at least clean the parts... Have you placed you finger inside the hubshell bearings, spinning them to feel their condition? The same could be done for the freehub body...
Forum: Bicycle Mechanics
03-27-24, 01:09 PM
Replies: 5
Views: 209
Posted By Andrew R Stewart

generally the crown race seat has a slightly...

generally the crown race seat has a slightly larger diameter then the rest of the steerer right above the seat.

Cane Creek's headset dimensional specs pages shows the 1.5" fork crown race seat...
Forum: Bicycle Mechanics
03-27-24, 12:36 PM
Replies: 14
Views: 464
Posted By Andrew R Stewart

Photos? Ben- I agree with the introduction...

Photos?

Ben- I agree with the introduction of indexing the shifting is often more abusive. Although I think it's the teeth profiling and lift pins that are more to blame as they aid the ability...
Forum: Framebuilders
03-27-24, 08:31 AM
Replies: 8
Views: 484
Posted By Andrew R Stewart

And if you do build the frame post a few shots...

And if you do build the frame post a few shots here for our pleasure. Andy
Forum: Bicycle Mechanics
03-26-24, 03:22 PM
Replies: 26
Views: 819
Posted By Andrew R Stewart

JA Stein made (makes currently?) a crank...

JA Stein made (makes currently?) a crank extractor thread repair kit It has an oversized thread tap (pilot too IIRC) and the now oversized extractor/puller.

Bicycle Research and BR offered an...
Forum: Bicycle Mechanics
03-26-24, 07:37 AM
Replies: 26
Views: 819
Posted By Andrew R Stewart

One trick is to go ride the bike with a crank arm...

One trick is to go ride the bike with a crank arm retaining bolt only finger tight. In time the crank will come loose and the bolt will keep it from falling off the bike while you limp home. Andy
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