Oval Chain Rings

[tribarwarrior]

Howdy

 

Not sure if this discussion has come up befire but I am wanting to put a oval shaped chain ring on my TT bike (has Dura-Ace) components, anybody have any experience witht this ?? what do I need to know ?? How do I go about choosing the right degree ??

 

Any advice will be greatly appreciated!

 

[NotSoBigBen]

I am using the rotor rings on my converted for TT roadbike. Can't remember exact setup and I'm lazy to go out now but I did it according to their advice in the manual for a TT setup ......

[Tankman]

http://www.diatechproducts.com/download/data/Q_Rings.pdf

 

 

 

found this manual very useful and pretty straight froward!

[tribarwarrior]

shot Tankman!!

[Speed Devil]

Check out this site. They make the Q-rings. You can download the manual there too.

 

See if you can get a 2nd hand set of Q-rings. They are quite expensive to buy new.

 

http://www.rotorbikeusa.com/

[slowtwitch]

tribarwarrior, I'v got a cheap set of rings for you to first try before you invest in a expensive set.

 

Comes of the old Shimano Biopace cranks

 

PM me

[dollar]

Oval chainrings? Is this Biopace for MTB's?

[dollar]

Ah - sorry spotted - TT bike.

 

So it's Biopace making a comeback?

 

[slowtwitch]

Oval chainrings? Is this Biopace for MTB's?

 

Why not?

 

I think it's 42/52 so maybe not the best combenation, but it will give a good idea of the oval concept

[dollar]

I have two road bikes that use biopace chainrings and I dont have a problem with it at all. I find them to be smooth and comfortable. Sheldon Brown also liked them - his article explains how much graft Shimano put into developing them.

 

I must add that I am a "for fun cyclist" and would not suggest that they are going to give you and edge in racing. I like them