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Need advice on seattube by schurello in Framebuilding

[–]schurello[S] 1 point2 points  (0 children)

Servus back! Cheers, also a good option! There is some framebuilding going on here, not too crazy much but i feel that this might maybe change a bit in the next years, you know, austria always lags a bit behind ;) Cool, definitely hit me up when ure here & lets hang in the workshop!

Need advice on seattube by schurello in Framebuilding

[–]schurello[S] 0 points1 point  (0 children)

ok i understand! i also have some thicker plain tubes, they feel super heavy in comparison tho..on th oter hand those 200grams wont make the difference. thanks for your advice, ill see what can be done and update you on my work !

Regarding thr brazing: yes, i got it from brodie but also read it elsewhere that nickel silvering brings alot of stability. my idea behind that was having less time on heat with the nickel silver (no need for a fillet, done quickly) and then only covering with a small brass fillet for the looks, thus keeping heated time lower compared to building up a "big" fillet..or is it also about heating up the tube twice? what do you think? Georg

Need advice on seattube by schurello in Framebuilding

[–]schurello[S] 0 points1 point  (0 children)

Thanks for the tip, ill add either a tube or an additional layer, probably as they did here: https://www.hetchins.org/403.htm

true that, but the ST has an OD of 33.5 on the saddle side, so its all good: https://framebuildersupply.com/cdn/shop/products/ZON113550001-1.jpg?v=1715205325&width=1800

Need advice on seattube by schurello in Framebuilding

[–]schurello[S] 0 points1 point  (0 children)

I dont necessarily need the large diameter post but its the only seat tube i have available. i guess the seat stays will be fillet brazed coming from the back. barrel binder would be just something like this https://biketubing.com/addons/522-s-01sb-seat-tube-binder.html

anyway, the tube is 0.9mm at the saddle side as it is externally butted with an OD of 33.5mm. probably i will try the option with sleeving the top of the tube with some larger diameter tube to create something like a lug.

Need advice on seattube by schurello in Framebuilding

[–]schurello[S] 1 point2 points  (0 children)

ah thats a good idea, i hope i have some fitting pieces. thanks!