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Search: Posts Made By: Andrew R Stewart
Showing results 1 to 50 of 1000
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10-18-19, 01:12 PM
Replies: 3
Views: 100
Posted By Andrew R Stewart

Yes, the lever clamp screw is up in the lever,...

Yes, the lever clamp screw is up in the lever, viewed when the lever is pulled against the bars. And the screw head is easier to access with the cable removed from the lever. Easy to do with no...
10-18-19, 01:09 PM
Replies: 8
Views: 231
Posted By Andrew R Stewart

Often these failures are "hidden" during riding...

Often these failures are "hidden" during riding by the ft brake mounting bolt acting as a bolt keeping the, loose in crown, steerer from coming out. Remove the ft brake and watch out!. Andy
Forum: Framebuilders
10-18-19, 08:53 AM
Replies: 11
Views: 250
Posted By Andrew R Stewart

Tom- Are you welding or brazing? I ask because...

Tom- Are you welding or brazing? I ask because the counter guy seemed to reference welding. And, perhaps when welding it does result in a weld other then desired. But then nearly no one who welds...
Forum: Framebuilders
10-17-19, 07:15 PM
Replies: 9
Views: 221
Posted By Andrew R Stewart

Good chance yes. The higher heat of brass will...

Good chance yes. The higher heat of brass will potentially distort things more. Andy
10-17-19, 09:04 AM
Replies: 2
Views: 89
Posted By Andrew R Stewart

The BB axle and the cups and the crank arms will...

The BB axle and the cups and the crank arms will all fit together and "like" each other. What I can't say is if the resulting location of the chainrings be where the rest of the bike wants them to be...
10-16-19, 03:26 PM
Replies: 10
Views: 192
Posted By Andrew R Stewart

First thing I think of is to check the pulleys....

First thing I think of is to check the pulleys. Forgetting to install that little sleeve can cause a lot of chain drag. Next is the chain it's self. Old lube can gummy up and get sticky. Of course...
Forum: Framebuilders
10-16-19, 09:00 AM
Replies: 11
Views: 250
Posted By Andrew R Stewart

Short answer, yes OP will work for brazing a...

Short answer, yes OP will work for brazing a frame.
This topic has been extremely well covered in the second link, below, to Velocipede Salon. The first link is about O concentrators, another...
10-16-19, 08:48 AM
Replies: 8
Views: 318
Posted By Andrew R Stewart

Grease where bearings seat. Carbon paste is to...

Grease where bearings seat. Carbon paste is to increase the grip of a clamped item. Bearings are not clamped. Andy
10-14-19, 10:00 PM
Replies: 10
Views: 201
Posted By Andrew R Stewart

I'll bet a beer at the Philadelphia bike expo...

I'll bet a beer at the Philadelphia bike expo that this park tool won't fit within a rim's presta valve hole. So far only woodcraft gets it. Andy
10-14-19, 09:58 PM
Replies: 37
Views: 1,352
Posted By Andrew R Stewart

Well, I'm 63 years old and still get the morning...

Well, I'm 63 years old and still get the morning paper delivered. Why? Because I like to read stuff that's not bouncing all over the place and has a contrast between the type and the surface...
10-14-19, 09:06 PM
Replies: 37
Views: 1,352
Posted By Andrew R Stewart

woodcraft- The peeves are there for you to find...

woodcraft- The peeves are there for you to find out.

Not sure how I feel about those who reject reading/viewing yet still want to know what was said. Andy
Forum: Framebuilders
10-14-19, 08:13 PM
Replies: 9
Views: 221
Posted By Andrew R Stewart

This is why many will jig the rear end at a few...

This is why many will jig the rear end at a few MMs wider then the final spec. Start looking down the lengths of built bike's seat stays and you'll see many with a slight dog leg centered at the...
10-14-19, 08:07 PM
Replies: 15
Views: 5,392
Posted By Andrew R Stewart

And this design, using the small cog as the...

And this design, using the small cog as the threaded lock ring for the other cogs, is what Shimano initially used for a number of years with their freehub/cassettes. As indexing came onto the market...
10-14-19, 08:00 PM
Replies: 10
Views: 201
Posted By Andrew R Stewart

Every tubular tire I've seen for decades uses a...

Every tubular tire I've seen for decades uses a Presta valve. The imaged tool is for a Schrader valve.

The OP's question is one more reason to not use stupid deep rims:) Really, with sew ups any...
10-14-19, 07:56 PM
Replies: 37
Views: 1,352
Posted By Andrew R Stewart

I bit and besides the very distracting nature of...

I bit and besides the very distracting nature of the image (I think he's riding a bike but could be a camel for that matter) understood all his points. Agreed with a few, don't care to ever mention a...
10-13-19, 08:41 PM
Replies: 3
Views: 198
Posted By Andrew R Stewart

My many dozens of sew ups of experience suggests...

My many dozens of sew ups of experience suggests that You'll get 1000 miles or until it goes flat:)

Really, it depends. Front or rear? How heavy are you? How abrasive are your roads? Do you pick...
Forum: Framebuilders
10-13-19, 07:12 PM
Replies: 8
Views: 388
Posted By Andrew R Stewart

https://www.bikeforums.net/framebuilders/775610-fr...

https://www.bikeforums.net/framebuilders/775610-framebuilding-suppliers.html This thread has some good sources to start with. There's Craig's List, E Bay then various frame building facebook and ...
Forum: Framebuilders
10-12-19, 09:26 PM
Replies: 14
Views: 440
Posted By Andrew R Stewart

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/1041x756/scan0010_6ac1edad59dbe2da855050c90bbc59fab1f21f17.jpg...
Forum: Framebuilders
10-12-19, 09:20 PM
Replies: 25
Views: 816
Posted By Andrew R Stewart

I strongly suspect that the embellishments are...

I strongly suspect that the embellishments are add ons. Either by attaching prior to brazing the joints or after. This is how many of the fancy English stuff was done too.

As to CNC for lugs, sure...
10-12-19, 08:52 PM
Replies: 14
Views: 346
Posted By Andrew R Stewart

Interesting possible solution, the off set axle...

Interesting possible solution, the off set axle washers. Do try it and let us know how they work for you. Andy
10-12-19, 10:59 AM
Replies: 14
Views: 346
Posted By Andrew R Stewart

Not sure of all you wrote... If your "too...

Not sure of all you wrote...

If your "too small" reference is about the crown's seat for the race then do know that has nothing to do with the outer shape of the crown race. It's ID is...
10-12-19, 08:35 AM
Replies: 12
Views: 295
Posted By Andrew R Stewart

This is the beauty of the first couple of...

This is the beauty of the first couple of generations of Campy (and Sachs) Ergo brifters. The left/front lever isn't a true indexed one. It just has a number of stepped points of movement and one...
10-12-19, 08:31 AM
Replies: 1
Views: 113
Posted By Andrew R Stewart

Not familiar with these spacers but as long as...

Not familiar with these spacers but as long as they have a round hole for the steerer, that they stack on and support the steerer all the way around it (and not just at the tip of the aero tear drop...
10-12-19, 08:28 AM
Replies: 8
Views: 220
Posted By Andrew R Stewart

I'll add that what works when all is new and...

I'll add that what works when all is new and tight/not worn and how that arrangement works when the miles/grit/sloppiness have added up can be rather frustrating. When gear system parts are sort of...
Forum: Framebuilders
10-11-19, 09:40 PM
Replies: 14
Views: 440
Posted By Andrew R Stewart

TH- I have no problem with your reasoning as long...

TH- I have no problem with your reasoning as long as you have no problem with what others think of your frames. Others might feel differently, I am at this second state. When I first started out...
10-11-19, 08:27 PM
Replies: 8
Views: 220
Posted By Andrew R Stewart

Yes, done frequently. The key to doing it easily...

Yes, done frequently. The key to doing it easily is some details and decisions. Bikes of that era will want what is currently called short cable pull brake levers, compatible with calipers and...
10-11-19, 06:02 PM
Replies: 9
Views: 253
Posted By Andrew R Stewart

IIRC Stronglight moved from their older extractor...

IIRC Stronglight moved from their older extractor threads of a 23.35mm diameter to the JIS standard of 22mm diameter in 1982 (or that's what my Sutherlands just confirmed). TA use to be 23mm in...
10-11-19, 11:13 AM
Replies: 14
Views: 346
Posted By Andrew R Stewart

As to the headset question- I suspect one (or...

As to the headset question- I suspect one (or more?) of a few possibilities. First is using too large ball diameters in the lower stack. Next is not using the lower cup's specific crown race, it...
10-11-19, 11:03 AM
Replies: 14
Views: 346
Posted By Andrew R Stewart

See this recent thread for more back story. ...

See this recent thread for more back story. https://www.bikeforums.net/bicycle-mechanics/1185462-fg-brake.html

No surprise when one doesn't get the answer they wish to seek others' opinions.
...
10-11-19, 10:53 AM
Replies: 11
Views: 219
Posted By Andrew R Stewart

Sure if a bike was equipped with the wrong...

Sure if a bike was equipped with the wrong ferules it would increase the likely hood of problems. This isn't a common thing but it does happen, more often after a casing replacement had been done by...
10-11-19, 10:08 AM
Replies: 6
Views: 199
Posted By Andrew R Stewart

I have no skin in this but to offer experience...

I have no skin in this but to offer experience and note your assumption of going to and from the track isn't use on a public thoroughfare. But maybe you do have a privet trail from home to the track....
10-11-19, 09:24 AM
Replies: 11
Views: 219
Posted By Andrew R Stewart

We see this problem with both the proper steel...

We see this problem with both the proper steel SIS ferules as well as the plastic ones. Andy
10-11-19, 09:23 AM
Replies: 11
Views: 337
Posted By Andrew R Stewart

It would be a simple added element to have a...

It would be a simple added element to have a plate with a "V" notch bolt to the two tubes' ends. When the "V" notched plates were used (either all the time or as needed) the axle would run parallel...
10-11-19, 09:14 AM
Replies: 11
Views: 219
Posted By Andrew R Stewart

This happened because you used your bike, and...

This happened because you used your bike, and likely didn't replace cables as frequently as you obviously should have. We see this casing strands migrating lengthwise often enough. On cheap as well...
10-10-19, 11:30 PM
Replies: 17
Views: 357
Posted By Andrew R Stewart

Some earlier bar end shifters that had indexing...

Some earlier bar end shifters that had indexing also had a friction option. Controlled by usually rotating a bezel or ring on the outer end of the shift pod. It is possible to have this ring...
10-10-19, 08:39 PM
Replies: 12
Views: 295
Posted By Andrew R Stewart

Two points- One is that all the Shimano (and to a...

Two points- One is that all the Shimano (and to a lesser degree other) brifters tend to stress/fray the cable about 1/4" from it's head (out of sight and hopefully not out of mind too). This isn't...
10-10-19, 08:29 PM
Replies: 11
Views: 337
Posted By Andrew R Stewart

I've used an Atomic stand, too many years ago:)...

I've used an Atomic stand, too many years ago:) What I remember was that solid axles didn't fit, the dishing marks were pretty useless (not that this is a real need), it's rim indicators sucked and...
Forum: Framebuilders
10-10-19, 05:30 PM
Replies: 25
Views: 816
Posted By Andrew R Stewart

I'm no manufacturer (although if I did make...

I'm no manufacturer (although if I did make frames as a business the courts would consider me one:)) but I don't think the model you describe would be economically viable. For a number of reasons,...
10-10-19, 05:24 PM
Replies: 6
Views: 199
Posted By Andrew R Stewart

This adaptor still requires the rear brake bridge...

This adaptor still requires the rear brake bridge to be the proper distance from the rim for the caliper/pads to fit. I guess if you can't drill through the bridge then this adaptor is your ticket. ...
10-10-19, 05:20 PM
Replies: 5
Views: 2,010
Posted By Andrew R Stewart

Different models of "classic" loose ball cup and...

Different models of "classic" loose ball cup and cone Campy headsets use different size balls. As two examples- the road Strada Record/NR used 3/16" top and bottom. The same vintage Pista versions...
10-10-19, 05:16 PM
Replies: 8
Views: 318
Posted By Andrew R Stewart

Assembly paste/carbon paste is an grease like...

Assembly paste/carbon paste is an grease like carrier with some sort of grit suspended in it to better fill the gap between clamped parts and increase the friction of the clamped part. It can serve...
10-10-19, 08:33 AM
Replies: 68
Views: 4,086
Posted By Andrew R Stewart

My usual reply to the which lube should I use is...

My usual reply to the which lube should I use is this analogy. It's not which brand of soap you use when you bathe. It's that you do bathe and use some sort of soap. Andy
Forum: Framebuilders
10-10-19, 08:28 AM
Replies: 14
Views: 440
Posted By Andrew R Stewart

This! Most people don't know how to or what to...

This! Most people don't know how to or what to look for on a hand made frame to determine the "quality" of the build. They see the sizzly and assume the steak will be good too. Book by it's cover...
10-10-19, 08:17 AM
Replies: 4
Views: 175
Posted By Andrew R Stewart

Shimano's ring spacing and their ft der cable...

Shimano's ring spacing and their ft der cable pull ratio differences between their road and MtB lines is well known. Within the each there have been subtle differences, generally between...
Forum: Touring
10-09-19, 10:41 PM
Replies: 30
Views: 1,119
Posted By Andrew R Stewart

Getting away from my three older sisters and...

Getting away from my three older sisters and wanting to be self reliant. Andy
10-09-19, 10:40 PM
Replies: 29
Views: 845
Posted By Andrew R Stewart

MH- I was just talking about this aspect of...

MH- I was just talking about this aspect of current bike design/manufacturing with a co worker that I will likely end up teaching how to build a frame. The life cycle of a modern bike is less then...
Forum: Framebuilders
10-09-19, 08:36 PM
Replies: 25
Views: 816
Posted By Andrew R Stewart

If grain structure was really important then...

If grain structure was really important then stamped/pierced/folded and welded lugs would be the choice. Perhaps the least expensive way to make lugs too. Yet other factors are considered to be more...
10-09-19, 08:14 PM
10-09-19, 09:21 AM
Replies: 4
Views: 212
Posted By Andrew R Stewart

Yes, the ring to ring spacing and the ring...

Yes, the ring to ring spacing and the ring thickness can be different. If the ft der is friction controlled then some of these differences are not in play, one just trims the ft cage (via the lever)...
10-08-19, 10:46 PM
Replies: 1
Views: 97
Posted By Andrew R Stewart

So assuming a lot (like you have Shimano STI...

So assuming a lot (like you have Shimano STI levers) and that the break point of the cable is inside the shifter... There are, maybe by now, hundreds of posts, threads and vids of various attempts to...
Showing results 1 to 50 of 1000
 


 
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