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Search: Posts Made By: Doug Fattic
Showing results 1 to 50 of 1000
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Forum: Classic & Vintage
04-16-24, 11:26 AM
Replies: 83
Views: 2,268
Posted By Doug Fattic

Back in the early 80's one of my engineering...

Back in the early 80's one of my engineering friends asked me why bicycle companies didn't tig weld their frames. I said that as far as I knew (which in reality was nothing), it couldn't be done...
Forum: Framebuilders
04-16-24, 11:03 AM
Replies: 25
Views: 666
Posted By Doug Fattic

The problem with your request is that if your...

The problem with your request is that if your primary concern and controlling factor in frame design will be based on a comfortable fit and that will involve some compromises to a frame design. Those...
Forum: Framebuilders
04-13-24, 06:16 PM
Replies: 19
Views: 875
Posted By Doug Fattic

It is possible to make a frame making fixture out...

It is possible to make a frame making fixture out of wood but it gets complicated real fast. Since I and a number of engineers have spent countless hours designing the fixture I have made in Ukraine,...
Forum: Framebuilders
04-12-24, 10:56 AM
Replies: 25
Views: 666
Posted By Doug Fattic

When designing a frame, it is necessary to...

When designing a frame, it is necessary to prioritize what is important and compromise on what less so. For example some cyclists that are older, fatter and less flexible can no longer ride in the...
Forum: Framebuilders
04-11-24, 06:25 PM
Replies: 25
Views: 666
Posted By Doug Fattic

Once a person's fit position is known, then I use...

Once a person's fit position is known, then I use my fixture to create the frame design. I place the chosen seat/seatpost and stem, in the same position as was discovered on the fitting bike. Like...
Forum: Framebuilders
04-11-24, 10:56 AM
Replies: 25
Views: 666
Posted By Doug Fattic

I'm a builder that has been teaching...

I'm a builder that has been teaching framebuilding classes since the middle 70's. There are 2 common approaches to designing a frame. The 1st most commonly used is to design a frame for maximum speed...
Forum: Framebuilders
04-06-24, 08:55 PM
Replies: 7
Views: 266
Posted By Doug Fattic

i have some Reynolds D shaped fork blades and...

i have some Reynolds D shaped fork blades and matching crowns. They vary in rake and curve. In addition I have steerers from the same era. I got them with some of the framebuilding stuff I acquired...
Forum: Framebuilders
04-02-24, 09:39 AM
Replies: 19
Views: 875
Posted By Doug Fattic

Chad, here is a fixture previously owned by...

Chad, here is a fixture previously owned by Michigan builder Randy Smolensky. One of my framebuilding students bought it from his widow. It was included in a group of tools/equipment. The picture...
Forum: Framebuilders
04-01-24, 01:29 PM
Replies: 19
Views: 875
Posted By Doug Fattic

My fixture could be mounted on a wall with either...

My fixture could be mounted on a wall with either 80/20 aluminum extrusion or plywood backing. Or for that matter a plate of aluminum or steel. The cones that hold the tubes can be adjusted to...
Forum: Framebuilders
04-01-24, 09:37 AM
Replies: 19
Views: 875
Posted By Doug Fattic

Yes my fixture can hang on the wall when not in...

Yes my fixture can hang on the wall when not in use. I'm not home where I can take a picture of it on the wall but I found in iPhoto a picture of a student frame and behind it one of my fixtures on...
Forum: Framebuilders
03-31-24, 04:56 PM
Replies: 19
Views: 875
Posted By Doug Fattic

Chad, your question/quest is pretty broad without...

Chad, your question/quest is pretty broad without some kind of guidelines that can help us reach your goal. What is your budget and how much prior experience do you have might be starter questions....
Forum: Classic & Vintage
03-29-24, 02:29 PM
Replies: 22
Views: 591
Posted By Doug Fattic

Jaime Swann is a machinist and framebuilder in...

Jaime Swann is a machinist and framebuilder in Long Island, NY and knowledgable about NYC area early framebuilders. Contacting him might get results. Some mysteries like this one may be extremely...
Forum: Classic & Vintage
03-23-24, 10:21 PM
Replies: 14
Views: 500
Posted By Doug Fattic

I had a close friend that worked for Nuke Proof...

I had a close friend that worked for Nuke Proof years ago (when they were actually in business) and he left because he felt they did not have high enough ethical standards for him. They were light...
Forum: Classic & Vintage
02-21-24, 12:03 PM
Replies: 25
Views: 1,034
Posted By Doug Fattic

I would check the threading on the seat binder...

I would check the threading on the seat binder bolt. The Brits used a Whitworth 9/16" during the classic period. I don't know when they switched to metric binders. Sometimes they can be M8 in other...
Forum: Classic & Vintage
02-14-24, 06:04 PM
Replies: 19
Views: 565
Posted By Doug Fattic

I'm going to repeat what I said in my earlier...

I'm going to repeat what I said in my earlier post. Framebuilders like myself repainted frames all the time in the 70's and 80's and beyond. Frames would get chips in the paint and they would come in...
Forum: Classic & Vintage
02-14-24, 07:20 AM
Replies: 19
Views: 565
Posted By Doug Fattic

Measure to see if there is any slight slope to...

Measure to see if there is any slight slope to the top tube. I'm betting the top tube near the seat lug is bit higher off the ground than close to the head tube. I believe this frame has been...
Forum: Classic & Vintage
02-05-24, 10:26 AM
Replies: 15
Views: 831
Posted By Doug Fattic

Just by chance a frame I made in the early 80's...

Just by chance a frame I made in the early 80's has come back to me for a bit of a paint refresh. I don't have to strip and repaint the whole thing but rather patch up the damages and put on fresh...
Forum: Classic & Vintage
02-04-24, 10:21 PM
Replies: 15
Views: 831
Posted By Doug Fattic

It is a very well made frame. I could have...

It is a very well made frame. I could have explained better that the very fine materials it was made out of were common in the sense easily ordered and used by many framebuilders so the choice of...
Forum: Classic & Vintage
02-04-24, 12:45 AM
Replies: 15
Views: 831
Posted By Doug Fattic

I don't think there is any chance your frame is a...

I don't think there is any chance your frame is a Chris Pauley. The rear dropouts to stays treatment looks kind of similar but they are not the same. It is very doubtful a framebuilder would do both...
Forum: Classic & Vintage
02-03-24, 05:00 PM
Replies: 22
Views: 714
Posted By Doug Fattic

As a bicycle frame painter, I use Bounty paper...

As a bicycle frame painter, I use Bounty paper towels. I need quite a few in the painting process (mostly when sanding but also when cleaning my paint guns) and then they are convenient for bike...
Forum: Framebuilders
01-29-24, 07:42 AM
Replies: 3
Views: 335
Posted By Doug Fattic

Andy I've used those dropouts in my framebuilding...

Andy I've used those dropouts in my framebuilding classes and know they aren't made anymore. I was thinking they were a MAP product too but I'm not positive. This was before I saw Mark's post. ...
Forum: Classic and Vintage Bicycles: Whats it Worth? Appraisals.
01-10-24, 09:40 AM
Replies: 30
Views: 1,952
Posted By Doug Fattic

The OP might want to go to Bob Hovey's Masi...

The OP might want to go to Bob Hovey's Masi website to put his bike into better context. My contribution to this thread was let the OP know that an early Masi made before 1970 was a very rare thing...
Forum: Classic and Vintage Bicycles: Whats it Worth? Appraisals.
01-08-24, 08:28 PM
Replies: 30
Views: 1,952
Posted By Doug Fattic

Let me place this Masi in American context. In...

Let me place this Masi in American context. In the 60's this was a custom top-of-the-line frame one could not get in the US unless they bought a Schwinn Paramount. Only kids rode bicycles in the US...
Forum: Classic & Vintage
01-04-24, 09:57 AM
Replies: 41
Views: 1,744
Posted By Doug Fattic

As a frame painter, I want to affirm what...

As a frame painter, I want to affirm what repechage has said. Most paints have some kind of translucence (in fact some paints are designed to have translucence) and as a result the top color is...
Forum: Classic & Vintage
01-03-24, 12:13 PM
Replies: 196
Views: 10,826
Posted By Doug Fattic

One of the considerations in establishing the...

One of the considerations in establishing the length of a warrenty is choosing the strength of the materials that will be used. Companies would obviously error on the side of strength to avoid the...
Forum: Classic & Vintage
01-01-24, 08:38 PM
Replies: 196
Views: 10,826
Posted By Doug Fattic

I learned how to build titanium frames 31 years...

I learned how to build titanium frames 31 years ago in the 1st ti class UBI taught. Gary Helfrich was the instructor and was the 1st American to learn how to tig weld titanium bicycle frames. He...
Forum: Classic & Vintage
12-31-23, 10:37 PM
Replies: 12
Views: 650
Posted By Doug Fattic

When I was learning how to build frames at Ellis...

When I was learning how to build frames at Ellis Briggs in Shipley, West Yorkshire in1975, Jack Briggs told me about them building frames for Beryl Burton. He explained how she preferred "pencil"...
Forum: Classic & Vintage
12-31-23, 05:44 PM
Replies: 196
Views: 10,826
Posted By Doug Fattic

What I was attempting to explain is that when a...

What I was attempting to explain is that when a cyclist transitions from a road racing style of bike whose position has a deep drop to a more recreational style of bike (as their fitness and...
Forum: Classic & Vintage
12-31-23, 03:56 PM
Replies: 196
Views: 10,826
Posted By Doug Fattic

Yes, there are situations where a 73º seat angle...

Yes, there are situations where a 73º seat angle is too steep. A proper seat angle for a performance road bicycle doesn’t mean it is right for a recreational rider. Fitting is a complex process. It...
Forum: Classic & Vintage
12-30-23, 09:59 AM
Replies: 196
Views: 10,826
Posted By Doug Fattic

Allow me as a custom builder (who no longer takes...

Allow me as a custom builder (who no longer takes orders but still teaches framebuilding classes), why getting a custom frame may be the best option for replacing her Litespeed. That is of course if...
Forum: Classic & Vintage
12-29-23, 12:30 PM
Replies: 196
Views: 10,826
Posted By Doug Fattic

To pah the OP, I've been a custom framebuilder...

To pah the OP, I've been a custom framebuilder for almost 50 years. That includes being a fitter to know how to design a custom frame off of their position. During that time almost half my customers...
Forum: Classic & Vintage
12-28-23, 02:49 PM
Replies: 36
Views: 1,504
Posted By Doug Fattic

It is true that I slapped an early Dura Ace...

It is true that I slapped an early Dura Ace headset on the frame just to keep the fork and frame intact. I'm not where I can measure the DA lower stack height now My Masi came as a complete Campy...
Forum: Classic & Vintage
12-28-23, 12:30 AM
Replies: 196
Views: 10,826
Posted By Doug Fattic

I think it is completely unreasonable to expect...

I think it is completely unreasonable to expect to warranty a 25 year old Litespeed. They - like almost all consumer products - are not going to last forever. Litespeed as a business practice priced...
Forum: Classic & Vintage
12-27-23, 11:40 PM
Replies: 36
Views: 1,504
Posted By Doug Fattic

Before and after I learned to build frames at...

Before and after I learned to build frames at Ellis Brigs in Yorkshire in 1975, I visited a lot of builders to learn any secrets that might be useful. Including in that big group was Masi in Milan...
Forum: Classic & Vintage
12-27-23, 10:01 PM
Replies: 36
Views: 1,504
Posted By Doug Fattic

Just in case someone is interested in the...

Just in case someone is interested in the geometry of my Italian V 58 Masi Gran Criterium, here are pics of its dimensions as shown in my fixture. I feel fortunate that this fixture I designed and...
Forum: Classic & Vintage
12-27-23, 04:50 PM
Replies: 6
Views: 842
Posted By Doug Fattic

I agree with others that those tools look like...

I agree with others that those tools look like dropout alignment tools probably made one-off by some that owns a lathe. This would be easy to confirm if a ruler was put along side the washers to...
Forum: Classic & Vintage
12-27-23, 01:08 PM
Replies: 36
Views: 1,504
Posted By Doug Fattic

My 1972 Masi GC my parents got for me in Milan...

My 1972 Masi GC my parents got for me in Milan (pictures of them collecting it are on Bob Hovey's site) has a Reynolds 531 frame decal in Italian. I remember my mom telling me she asked Faliero about...
Forum: Classic and Vintage Bicycles: Whats it Worth? Appraisals.
12-18-23, 07:59 PM
Replies: 27
Views: 2,027
Posted By Doug Fattic

The best American builders have been able to...

The best American builders have been able to exceed what was done in the classic era. We can charge much more and as a result take more time. Also our knowledge keeps increasing. The classic builders...
Forum: Framebuilders
12-18-23, 04:15 PM
Replies: 9
Views: 664
Posted By Doug Fattic

A belt sander was the tool I didn't have at our...

A belt sander was the tool I didn't have at our workshop where we made frames in Bucha, Ukraine that I missed the most. When the Russians broke in to steal whatever they wanted, they took many of our...
Forum: Classic and Vintage Bicycles: Whats it Worth? Appraisals.
12-18-23, 09:41 AM
Replies: 27
Views: 2,027
Posted By Doug Fattic

Now that he has retired, Rich has enjoyed making...

Now that he has retired, Rich has enjoyed making a number of tribute bikes. An admirer of Eddy Merckx, he has as a goal to make every one of the bikes Eddy used when he rode for different companies...
Forum: Framebuilders
12-17-23, 07:55 PM
Replies: 9
Views: 664
Posted By Doug Fattic

This would make an excellent separate subject...

This would make an excellent separate subject thread. I'd like to see other shop's as well. Seeing what tooling others have and how things are done could spark many other subject threads.
Forum: Classic and Vintage Bicycles: Whats it Worth? Appraisals.
12-17-23, 07:44 PM
Replies: 27
Views: 2,027
Posted By Doug Fattic

It's Rich Gangl by the way, not Joe Gangl. And...

It's Rich Gangl by the way, not Joe Gangl. And yes he is one of the few very top tier frame builders - American or any one else in the world. He has the broadest range of skills that I know any...
Forum: Classic & Vintage
12-11-23, 09:49 AM
Replies: 60
Views: 2,713
Posted By Doug Fattic

I'm a framebuilder that prefers the ride of a...

I'm a framebuilder that prefers the ride of a .7/.4/.7 thin wall tubing bike frame with a 1" top tube. Full stop. I made my 1st very light frame out of Ishiwata 015 tubing in the late 70's. It was a...
Forum: Classic & Vintage
12-07-23, 09:35 AM
Replies: 30
Views: 1,377
Posted By Doug Fattic

I just weighed a Velo Orange Voyager 650b 36º in...

I just weighed a Velo Orange Voyager 650b 36º in my shop. it weighs around 612 grams. A single Pacinti Brevet rim that is also a 650b with 36º weighed 460 grams. Of course the Voyager is a wider...
Forum: Framebuilders
12-07-23, 08:18 AM
Replies: 7
Views: 422
Posted By Doug Fattic

I was about to say the same thing. That Henry...

I was about to say the same thing. That Henry James look alike crown was made narrower by Everest in the era when skinner tires were all the rage. Hank was very protective of his brand and this kind...
Forum: Classic & Vintage
12-06-23, 08:35 AM
Replies: 34
Views: 1,396
Posted By Doug Fattic

I wouldn't. The heat to attach those top tube...

I wouldn't. The heat to attach those top tube brake cable guides distorts the tube a bit. If you take them off you will be able to see that distortion when you sight down the tube. Well I suppose...
Forum: Classic & Vintage
12-06-23, 08:24 AM
Replies: 34
Views: 1,396
Posted By Doug Fattic

No, I went there because I had heard from...

No, I went there because I had heard from Reynolds that every American had failed the 753 test. In the beginning one had to summit a complete frame out of 753 to demonstrate one could braze it...
Forum: Classic & Vintage
12-05-23, 10:11 AM
Replies: 34
Views: 1,396
Posted By Doug Fattic

Back the 70's and 80's I added, subtracted...

Back the 70's and 80's I added, subtracted braze-ons all the time when a frame came in for a new paint job. It was standard procedure not to expect a good paint job to last a long time. They were...
Forum: Classic & Vintage
12-05-23, 08:31 AM
Replies: 40
Views: 1,563
Posted By Doug Fattic

I looked up availability at QBP (a wholesale...

I looked up availability at QBP (a wholesale distributor) for CR-18s. In polished silver in 700C size that have both 32 hole and 36 hole in stock. One would have to order these through a bike...
Forum: Framebuilders
12-04-23, 12:41 PM
Replies: 8
Views: 417
Posted By Doug Fattic

Eric is right there are too many different kinds...

Eric is right there are too many different kinds of front derailleurs to have a standard. And of course their height changes based on how many teeth the front chainring has. Even Shimano's Dura Ace...
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