Wut?

[Grant]

http://oldtenspeedgallery.com/other-things/randys-getting-started-fixing-up-vintage-bicycles/

 

[RustyGold]

That's the most extreme elliptical chainring I've seen yet .

 

[1oldbikelover]

That's the most extreme elliptical chainring I've seen yet .

”Most extreme” is a good way to describe it! What next? Rectangular?

 

[Grant]

”Most extreme” is a good way to describe it! What next? Rectangular?

Some are rhombus shaped.

 

[RustyGold]

Some are rhombus shaped.

 

[Grant]

View attachment 121511

 

[SpikeFC]

View attachment 121576

This is plainly stupid...

 

[Grant]

This is plainly stupid...

I am fine when they are a bit non round like the Biopace or most of the non round MTB chainrings, but it bugs me when it is like that.

 

[SpikeFC]

I would love to see it shift

 

[kingfish254]

That is a bit extreme looking, but Shimano had the BioPace elliptical chainrings for a long time.