Early 50s La Gazelle - Eau-de-Nil 🛠️ The Merlot Aftermath 🍷

[vcballbat]

René Herse Racing Bike 1965..
https://www.speedbicycles.ch/velo/550/herse_velo_de_course_1965.html

 

[Guinessisgoodforyou]

Is that the case? I always thought capping a tube or any box section it would do the opposite

I disagree.

 

[Mickeyspinn]

I disagree.

So a cone with a hole at its top point has more torsional rigidity than a capped to a point cone?!
I'm surprised

 

[Imlach]

So a cone with a hole at its top point has more torsional rigidity than a capped to a point cone?!
I'm surprised

So filling and filing makes it less rigid? I'll never understand structural stuff, thank god others are doing the hard work

But won't that mean that all of these fancy frames technically are more harsh in the rear?

I need a drink

 

[Guinessisgoodforyou]

Forms a fillet rather than a butt joint, so possibly more torsional strength.

Is that the case? I always thought capping a tube or any box section it would do the opposite

So a cone with a hole at its top point has more torsional rigidity than a capped to a point cone?!
I'm surprised

It is now unclear what point you're making.

 

[vcballbat]

So a cone with a hole at its top point has more torsional rigidity than a capped to a point cone?!
I'm surprised

So what you're saying is that a 99 is stronger than a cone with hundreds and thousands..

 

[Mickeyspinn]

So what you're saying is that a 99 is stronger than a cone with hundreds and thousands..

Oh ....spanner in works....
Half way through typing out a reply to Guinness....now I'm laughing and can't concentrate..

 

[vcballbat]

Desperately trying to stay on topic here's a brief history lesson..

https://www.renehersecycles.com/legend/

 

[Mickeyspinn]

It is now unclear what point you're making.

Right...
So ...
Fancy pancy dropouts with open ended tubing and unfiled/blended drop out tang are more torsionally rigid than a closed off end of tube?

I always believed that any hollow structure...tube,box section that was capped off lost torsional flex due to being capped off!

It's a small point...I'm trying to weigh the benefits of this approach.....weight,joint strength and torsional compliance. All things that obviously as a frame builder you'd consider to trade against each other for benefit gains.

Oh and vcballbat.....I'll take mine with just a flake..

 

[Guinessisgoodforyou]

We are obviously talking crossed wires