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Starting a Columbus Air road bike frame build ...this could take a while!

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Starting a Columbus Air road bike frame build ...this could take a while!

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Old 12-31-14, 04:18 PM
  #26  
bodge
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I polished the scratches out of the Air seatpost that I'll be using:


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Old 12-31-14, 04:21 PM
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This Friday, I'm stopping by Dale Saso's shop again, to start building my first frame from scratch - it's been nice working with him on this project. I'll post some photos of the results when I get back.
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Old 01-03-15, 01:11 PM
  #28  
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It took a whole day of working to get this together, but I'm happy with the results. There weren't any major disasters - just a lot of measuring and adjusting to keep it precise.

...now I need to spend some quality time with my files, and get started on the rest of the frame.

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Old 01-05-15, 12:39 AM
  #29  
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I don't know anything about brazing but it looks nice to me. What kind of jig did you use?
-Steve
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Old 01-06-15, 12:37 PM
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Originally Posted by PithyBikes
I don't know anything about brazing but it looks nice to me. What kind of jig did you use?
-Steve
First we did a few steps without a jig:

-brazing the steerer tube to the fork crown, and putting the steerer into a lathe to machine the race seat
-brazing the fork ends to the blades and roughly aligning the ends

Later, we put the three pieces into a jig that held the steerer tube and the dropouts at the proper rake.
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Old 01-06-15, 07:20 PM
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should be satisfying to ride a bike that you've built from scratch, if that's what is intended. the hard part will not be building the frame, i think, but resisting the temptation to talk about something other than the frame you built to your cycling buddies. it could wear thin pretty quickly, i would think.
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Old 01-06-15, 10:44 PM
  #32  
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Originally Posted by hueyhoolihan
should be satisfying to ride a bike that you've built from scratch, if that's what is intended. the hard part will not be building the frame, i think, but resisting the temptation to talk about something other than the frame you built to your cycling buddies. it could wear thin pretty quickly, i would think.
Initially one is a bit smug, even condescending. But after a while an aloof attitude works well. Andy
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Old 01-06-15, 11:14 PM
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Originally Posted by bodge
It took a whole day of working to get this together, but I'm happy with the results.
I'm impressed with the result too! Well done Bodge.

Watching with interest.



Originally Posted by Andrew R Stewart
Initially one is a bit smug, even condescending. But after a while an aloof attitude works well. Andy
I still get a buzz when folks do a double take at the bamboo bike.
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Old 01-07-15, 12:48 AM
  #34  
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Very interesting. I always wondered how a race seat is done on custom forks. This makes me want to build a custom set at some point. Nothing completes a frame like custom forks made just for it. Looking forward to seeing your next progress.
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Old 01-07-15, 01:21 AM
  #35  
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Originally Posted by Andrew R Stewart
Initially one is a bit smug, even condescending. But after a while an aloof attitude works well. Andy
im sorry, could you repeat that? i wasn't listening...
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Old 01-07-15, 09:12 AM
  #36  
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Originally Posted by PithyBikes
Very interesting. I always wondered how a race seat is done on custom forks. This makes me want to build a custom set at some point. Nothing completes a frame like custom forks made just for it. Looking forward to seeing your next progress.
There re pre machined crown race seats available, often used when making unicrown forks. The fork in the photo looks to have a crown with a race seat already machined in it, like many crowns do. After brazing the fork one can use a lathe or a crown race cutter to take the seat down to size. Andy.
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Old 01-31-15, 08:20 AM
  #37  
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I see in one of the pics you have two different on top areo shifter braze ons. I didn't see these at the nova site
or ceway uk. Where did you get them? I am looking forward to seeing your areo set up.
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Old 01-31-15, 11:29 AM
  #38  
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Originally Posted by long john
I see in one of the pics you have two different on top areo shifter braze ons. I didn't see these at the nova site
or ceway uk. Where did you get them? I am looking forward to seeing your areo set up.
Those aero shifter bosses were included with the tubing that I bought - there is one on sale on ebay now:

1980s Art Stump Aero Shift Lever Boss 2 | eBay
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Old 01-31-15, 11:38 AM
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It would be very straightforward (and a whole lot cheaper) to make one out of a pair of regular shifter bosses.
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Old 01-31-15, 11:40 AM
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Originally Posted by bodge
Those aero shifter bosses were included with the tubing that I bought - there is one on sale on ebay now:

1980s Art Stump Aero Shift Lever Boss 2 | eBay
Neat device if you want internally routed cables, or above the BB cable guides. Andy.
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Old 01-31-15, 12:13 PM
  #41  
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Originally Posted by bodge
Those aero shifter bosses were included with the tubing that I bought - there is one on sale on ebay now:

1980s Art Stump Aero Shift Lever Boss 2 | eBay
The old "Escargot" shifter boss! Haven't seen one of those in years...
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Old 05-29-15, 04:36 PM
  #42  
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any updates?
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Old 04-25-24, 06:01 AM
  #43  
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hi there -good day dear Bodge hi there dear untershausen - and doug Fattic of course hi there dear all,

well the question is still relevant i think

.... getting cheap materials - eg Tubes for the frame - low cost suppliers in Europe needed
oing a bike frame build, having a really hard time sourcing Tubing in Europe, anybody know where to go for getting cheap materials - eg Tubes for the first frame
I love to see bikeframe suppliers in Europe - eg. France, Spain, Italy, Germany, Czech, Poland Ukrain, Bulgaria, Hungary and so on. I need to have some low price suppliers for all things tubing

especially the Main-Frame tube - but also the
Lugs and other things
Shells

Look forward to hear from you Perhaps we can work on a supplier-listduring the christmas-holiday we try to add a little list... - a compilation of suppliers in Europe.

Europe: . some findings...
Reset-Racing: reset-racing.de or allmost everything - especially tubing
custom-Acacemy: https://www.custom-academy.de/ - allmost everything - especially tubing
UBI - https://www.bikeschool.com/ sells Kaisei tubing and some lugs
Jan Heine's "Compass" -- https://www.compasscycle.com/Framebuilding.html -- sells a couple of fork crowns and fork blades
ciclicorsa: https://ciclicorsa.com/ - allmost everything: E-Mail: info@ciclicorsa.com
Ceeway: Framebuilding Bicycles. Tubing, Parts, and Tools - allmost everything
Bike Europe https://www.bike-eu.com - many parts
Tennant-Metall: https://www.tennant-metall.de/de/gueten/25crmo4-4130 - tubing
Kellys bicycles, gear and accessories | Kellys https://www.kellysbike.com
The biggest Slovak bicycle producer offering wide range of mountain, road, trekking, cross, women and junior bicycles.
FESTKA https://festka.com tube.jpg. Festka bicycles are small technological miracles carefully packaged in unique ...
Corratec Home | Corratec https://www.corratec.com : Shadow Edge Tube 2.0 - worldwide most stable and safest corratec E-Bike frame...
Antidote – CUSTOM HANDCRAFTED BIKES - Antidote https://antidotebikes.com Antidote is a small boutique company based in the south of Poland. ... fiber pieces in them, creating state of art, high performance mountainbike frames.
BIKE TECHNOLOGY - Zumbi Cycles https://zumbicycles.com - tubing etc. from Poland : Mail: shop@zumbicycles.com
RychtarskiBicycleWorkshop: Kajac Custom Rychtarski - Bicycle Workshop @RychtarskiBicycleWorkshop
Facebook Post
Mail; info@rychtarski.com
SingleBe Ing. Tomáš Kutin E-Mail: info@singlebe.co

see also: some interesting lists:
https://theframebuilders.com/list/
https://images.squarespace-cdn.com/c...g?format=1000w

plz correct me if i am wrong and if i have added some incorrect information: ,,, - i can do (add) the corrections here. Thanks for the help!
📷
see the non European:
ACTOFIVE https://www.actofive.com Frames: core of the bicycle industry - HuangWei Al Alloy Welding - founded in February 1992
Prof. Bicycle Frame, Fork: Prof. Bicycle Frame, Fork, Parts and Wheelchair Products Manufacturer. Bikeframe Welding. OEM Welding. ISO 9001.
Wicks Aircraft https://www.wicksaircraft.com/ 4130 tubing
Aircraft Spruce https://www.aircraftspruce.com/ 4130 tubing

i love to see a global list - that also contains the supplier - of the ones that contains all the one especially those in the easter european countries too..
many many thanks..

update: here i found a map - that might be helpful

https://utahrandonneur.files.wordpre...b5b4e80a06.jpg

note: https://utahrandonneur.wordpress.com...ycling-brands/

The map was created by Andrea Bonfanti from Italy. He a noted De Rosa historian who also wrote the book on De Rosa bicycle history. I have both the map and book, he does an amazing job of research and is very knowledgeable and approachable.


well i look forward to hear from you

cheers
apollo
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Old 04-25-24, 06:30 PM
  #44  
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9 year old Zombie thread....let it sleep
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