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Search: Posts Made By: Andrew R Stewart
Showing results 1 to 50 of 1000
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Forum: Framebuilders
08-06-20, 07:24 AM
Replies: 21
Views: 341
Posted By Andrew R Stewart

Trail of 64mm is pretty much what I aim for if...

Trail of 64mm is pretty much what I aim for if possible with 700c wheels. Andy
08-06-20, 07:22 AM
Replies: 3
Views: 66
Posted By Andrew R Stewart

I have no experience that I can pull back out of...

I have no experience that I can pull back out of the old grey matter but just about every internal routed cable I have dealt with from that era have no internal tunnel (and sometimes suffer from...
08-06-20, 07:20 AM
Replies: 16
Views: 332
Posted By Andrew R Stewart

No but that's exactly why I like the 3 piece...

No but that's exactly why I like the 3 piece master links, they are harder to come undone. For those who believe that der chains see the hardest use what with shifting stresses and all spend a season...
08-05-20, 07:34 PM
Replies: 4
Views: 119
Posted By Andrew R Stewart

It's a simple math problem to, on paper, design a...

It's a simple math problem to, on paper, design a crank/BB length combo and the resulting ring/frame clearance if you have the same crank mounted on a known BB length. Just measure the amount od...
08-05-20, 06:34 AM
Replies: 16
Views: 332
Posted By Andrew R Stewart

The two piece master link described is likely for...

The two piece master link described is likely for a 1/8" chain, not a 3/32" der chain. The side plate with two holes does have the hole spacing closer then the pins are. One places the plate with...
08-05-20, 06:29 AM
Replies: 4
Views: 134
Posted By Andrew R Stewart

I took the OP's wheel as having the rim on the...

I took the OP's wheel as having the rim on the frame's centerline but the axle is off set to one side. Then this wheel was to be used in a different frame that has centered drop outs and thus the rim...
08-04-20, 06:42 PM
Replies: 3
Views: 97
Posted By Andrew R Stewart

Giant USA is not set up to deal directly with the...

Giant USA is not set up to deal directly with the public. In fact it might be disallowed in their contract with their retail dealers. Cpach has it right. A Giant dealer is the first place to source...
08-04-20, 06:33 PM
Replies: 21
Views: 414
Posted By Andrew R Stewart

The fork looks to made of steel, not more crack...

The fork looks to made of steel, not more crack prone Al. I also suspect the fork was from another factory then that of the frame, as is often the current outsourcing manor. Andy
Forum: Framebuilders
08-04-20, 05:45 PM
Replies: 21
Views: 341
Posted By Andrew R Stewart

One option is to leave the tube diameters as...

One option is to leave the tube diameters as planned but have the TT miter's ears cut flat/vertical and then have the seat stays tops butt/flow into the TT. If done well the stays flow into the sides...
08-04-20, 05:40 PM
Replies: 4
Views: 134
Posted By Andrew R Stewart

AS difficult as to true a wheel. All that dishing...

AS difficult as to true a wheel. All that dishing is is just truing on a grand scale. No more, no less. Andy
08-04-20, 05:37 PM
Replies: 9
Views: 293
Posted By Andrew R Stewart

Take apart your current brakes and clean then...

Take apart your current brakes and clean then lube the various pivots. Adjust their free movement as tight as possible. Get some better pads (KS are good options). Recable with care to square up the...
08-04-20, 05:34 PM
Replies: 21
Views: 414
Posted By Andrew R Stewart

Pull the fork for some future project. make a...

Pull the fork for some future project. make a stool with the shell, ST and rear end and toss the rest. Andy
Forum: Framebuilders
08-04-20, 07:20 AM
Replies: 6
Views: 148
Posted By Andrew R Stewart

I've found that the thicker walled "gas pipe"...

I've found that the thicker walled "gas pipe" frames are easier to straighten with less resulting evidence of having been cold set. The thin walled high strength stuff tend to hold it's bulges and...
08-04-20, 07:17 AM
Replies: 4
Views: 97
Posted By Andrew R Stewart

Is there a question in this op? My question...

Is there a question in this op?

My question is whether the bike's OEM stem has the same dimensions as the information the OP found on line? I would not trust a third party's claims of spec until...
08-04-20, 07:12 AM
Replies: 9
Views: 190
Posted By Andrew R Stewart

People often make the same mistake twice, which...

People often make the same mistake twice, which is why people often don't catch wrong answers on a test when they double check before handing it in to the teacher.

Not saying the OP did make a...
08-04-20, 07:05 AM
Replies: 18
Views: 604
Posted By Andrew R Stewart

Do others see a bent seat tube, centered at the...

Do others see a bent seat tube, centered at the dropped "top tube"? It might be optical distortion from the camera but I've seen enough bent STs on ladies frames to not look for this too. This hinge...
Forum: Framebuilders
08-03-20, 09:08 PM
Replies: 6
Views: 148
Posted By Andrew R Stewart

At one time i would agree with straightening a...

At one time i would agree with straightening a frame and reselling it. But these days unless the bike was something really special I'd likely pass on it. In a time only view parting out a bent bike...
Forum: Framebuilders
08-03-20, 07:11 AM
Replies: 3
Views: 124
Posted By Andrew R Stewart

I have found that dealing in person if at all...

I have found that dealing in person if at all possible is the better method to insure you end up with what you expect (then over the internet or phone). Any chance you can tell us where you are? Andy
08-02-20, 10:25 PM
Replies: 10
Views: 213
Posted By Andrew R Stewart

One makes sure all the areas of slop are tight...

One makes sure all the areas of slop are tight and not a growing issue. Some, like pads in caliper or stanchions in legs are always a tad sloppy, Others like headsets and hubs/rotor mounts can be...
08-02-20, 10:20 PM
Replies: 5
Views: 237
Posted By Andrew R Stewart

When drying chains after cleaning time and temp...

When drying chains after cleaning time and temp are your friends. Chains have a lot of inside area and a lack of gaps to allow solvent to flush away grime and to allow quick drying out. Many times...
08-02-20, 03:55 PM
Replies: 21
Views: 436
Posted By Andrew R Stewart

In the 52 years of riding multi geared bikes I...

In the 52 years of riding multi geared bikes I have only needed a chain tool twice. One of those times was on a tandem. I don't bother to carry one (excepting my self contained multi day tours). I...
08-01-20, 09:55 PM
Replies: 8
Views: 216
Posted By Andrew R Stewart

I might have missed someone mentioning the QR...

I might have missed someone mentioning the QR springs not being in the right arrangement. The small ends go against the axle and the big end against the QR end caps. Andy
08-01-20, 09:51 PM
Replies: 13
Views: 286
Posted By Andrew R Stewart

Are you trying to make replacements? Seems to be...

Are you trying to make replacements? Seems to be that a simple band with a brazed on binder would do the trick. Might have to use a beautiful thing (lathe) to produce the bans to a fit spec first.
...
08-01-20, 03:45 PM
Replies: 4
Views: 133
Posted By Andrew R Stewart

As much as i like my Campy stuff for a do...

As much as i like my Campy stuff for a do everything bike that might see mods or evolution over time I say go with the bigger brands that offer more choices. Next up is what shifters you want/like....
08-01-20, 03:16 PM
Replies: 8
Views: 238
Posted By Andrew R Stewart

I won't vote because any wheel you decide on can...

I won't vote because any wheel you decide on can suffer a single boo boo that ends that wheel's useful life. so "trying to figure out if the build is reasonable for my use, or may run the risk of...
08-01-20, 06:52 AM
Replies: 4
Views: 136
Posted By Andrew R Stewart

Trial and error would be my first thought. This...

Trial and error would be my first thought. This would only take 15 minutes if all was at hand. Between chain ring clearance with the frame and chain line measurements it should be easy to figure out...
08-01-20, 06:50 AM
Replies: 19
Views: 443
Posted By Andrew R Stewart

Shades of Stein grease injectors. While not for...

Shades of Stein grease injectors. While not for the cartridge bearings noted Stein has freewheel/freehub grease injector devices as well as has made a BB sealed and injectable system using Zerk...
07-31-20, 06:27 PM
Replies: 8
Views: 235
Posted By Andrew R Stewart

Agreed that repeated loosening after retightening...

Agreed that repeated loosening after retightening is the classic example of the arm's tapered hole being deformed. Trying to file the flats flat will not work, or the various attempts I've seen never...
07-31-20, 06:23 PM
Replies: 6
Views: 198
Posted By Andrew R Stewart

Ball in detent indexed levers will tend to have...

Ball in detent indexed levers will tend to have the detent grow and thus the overshift grow. Until this frustrates you enough to do something about why change? Is it at that point yet? Only you can...
07-31-20, 06:20 PM
Replies: 2
Views: 128
Posted By Andrew R Stewart

Agreed with the cassette remaining the same but...

Agreed with the cassette remaining the same but for the gear ratio changes that will be with a 2x. Will the new set up with the old cassette do what you need ratio wise? Andy
07-30-20, 10:06 PM
Replies: 5
Views: 243
Posted By Andrew R Stewart

Having sold and serviced more then a few back in...

Having sold and serviced more then a few back in the 1990s I suggest you don't suffer more people with this. Does it work? Sure when all is well set up. But the auto principle is still lacking in...
07-30-20, 07:12 AM
Replies: 18
Views: 358
Posted By Andrew R Stewart

Is the unasked question what front chainring...

Is the unasked question what front chainring would I install (instead of the OEM one) to make up hills easier?

I have to admit the OP is a bit confusing to read. Andy
07-29-20, 03:34 PM
Replies: 45
Views: 855
Posted By Andrew R Stewart

We tweak rack and fender stays often to fit or...

We tweak rack and fender stays often to fit or clear stuff as needed. I want the rack stays and the frame eyes ro fit as square/parallel to each other as possible to minimize anything having a bow or...
07-28-20, 07:21 PM
Replies: 5
Views: 245
Posted By Andrew R Stewart

Good job and thanks for the follow up post. Andy

Good job and thanks for the follow up post. Andy
07-28-20, 07:20 PM
Replies: 24
Views: 404
Posted By Andrew R Stewart

A SunTour equipped bike this old could very well...

A SunTour equipped bike this old could very well have a replacement freewheel that is Shimano and not ST compatible. There's a reason why ST left the market, add 30 years of age and you have an old...
07-28-20, 07:15 PM
Replies: 11
Views: 349
Posted By Andrew R Stewart

IME the rust you should be concerned about is the...

IME the rust you should be concerned about is the stuff you don't see.

You should pull the seat post and sighted down the seat tube? What do the bottle bosses, cable stops, tube vent holes look...
07-28-20, 05:11 PM
Replies: 45
Views: 855
Posted By Andrew R Stewart

No, if they both have to share the same bolt the...

No, if they both have to share the same bolt the rack goes inboard of the fender struts. This placed the rack's load in a more shear direction then a bending one, WRT the bolts. Andy
07-28-20, 06:49 AM
Replies: 1
Views: 111
Posted By Andrew R Stewart

Al on Al is not the best interface to handle...

Al on Al is not the best interface to handle contaminates. Andy
07-28-20, 06:43 AM
Replies: 24
Views: 564
Posted By Andrew R Stewart

Yes, posts are often slightly undersized. I'll...

Yes, posts are often slightly undersized. I'll also add that measuring the seat tube ID is not going to get you a specific dimension. There's too much distortion from heat unevenly applied during...
07-27-20, 09:25 PM
Replies: 24
Views: 564
Posted By Andrew R Stewart

Simple experiment is to remove the brake...

Simple experiment is to remove the brake hanger/stop and then ride the bike and see what happens. Or sub a different bolt that isn't an Allen wrench one. In the as imaged condition can you pivot the...
Forum: Framebuilders
07-27-20, 09:15 PM
Replies: 24
Views: 466
Posted By Andrew R Stewart

0.064" thick is pretty thick for such a small...

0.064" thick is pretty thick for such a small width of surface, to bend and have the bends "take" to the edges. Next time I would consider carving a pre bent piece, a tube section perhaps. Andy
07-27-20, 08:36 PM
Replies: 2
Views: 136
Posted By Andrew R Stewart

Have you checked the options by using a Shiftmate...

Have you checked the options by using a Shiftmate cable pull adaptor from J Tech? With these you can run Shimano cassettes with Campy ders and levers (and many other mixes of brands) Andy
07-27-20, 08:33 PM
Replies: 45
Views: 855
Posted By Andrew R Stewart

Ah missing data provided by photos. The Op has a...

Ah missing data provided by photos. The Op has a rack mounted child ride along device (looks to be a Burley Piccolo, or a copy of. These child "tag a long" devices place a serious amount of lateral...
07-27-20, 08:20 PM
Replies: 5
Views: 245
Posted By Andrew R Stewart

A badly jammed wheel/tire against the chain stay...

A badly jammed wheel/tire against the chain stay could cause a rim to become out of true laterally. If bad enough some radial out of true will result. But I suspect the wheel or tire was already out...
07-27-20, 07:30 AM
Replies: 54
Views: 1,806
Posted By Andrew R Stewart

There are some plants/bushes that produce thorns...

There are some plants/bushes that produce thorns and that are in the NE. When in Cleveland and on one of my first MtB rides at Punderson Pk (before they outlawed bikes from their trails, a long time...
07-26-20, 07:55 PM
Replies: 7
Views: 269
Posted By Andrew R Stewart

In my years the first "upgraded" pads were the...

In my years the first "upgraded" pads were the Scott Mathouser (sp) ones available in both inserts and their unique bonded to finned shoes. Predated KS by a lot of years, although now KS produces...
07-26-20, 11:13 AM
Replies: 7
Views: 269
Posted By Andrew R Stewart

It's been common knowledge for a few decades that...

It's been common knowledge for a few decades that both fresh pads and Kool Stop's in particular improve braking performance. Andy
07-25-20, 07:16 PM
Replies: 27
Views: 719
Posted By Andrew R Stewart

8% more tire width is IMO about 8% less PSI....

8% more tire width is IMO about 8% less PSI. Having said that 120 PSI is WAY HIGH. Is there a reason you run your 23's this high?

I sometimes ask customers if they have a manual shift car and if...
07-25-20, 07:10 PM
Replies: 16
Views: 362
Posted By Andrew R Stewart

My answer is only if you clamp it too tightly....

My answer is only if you clamp it too tightly. Andy
Forum: Framebuilders
07-25-20, 02:29 PM
Replies: 24
Views: 466
Posted By Andrew R Stewart

I aim for about 1mm thick for the finished...

I aim for about 1mm thick for the finished version. The two different batches of my "S" have been slightly differing thicknesses around .040 and I think .045. But with after brazing finishing and how...
Showing results 1 to 50 of 1000
 


 
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