tribarwarrior Posted September 15, 2009 Share 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! Link to comment Share on other sites More sharing options...
NotSoBigBen Posted September 15, 2009 Share 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 ...... Link to comment Share on other sites More sharing options...
Tankman Posted September 17, 2009 Share http://www.diatechproducts.com/download/data/Q_Rings.pdf found this manual very useful and pretty straight froward! Link to comment Share on other sites More sharing options...
tribarwarrior Posted September 17, 2009 Share shot Tankman!! Link to comment Share on other sites More sharing options...
Speed Devil Posted September 17, 2009 Share 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/ Link to comment Share on other sites More sharing options...
slowtwitch Posted September 19, 2009 Share 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 Link to comment Share on other sites More sharing options...
dollar Posted September 19, 2009 Share Oval chainrings? Is this Biopace for MTB's? Link to comment Share on other sites More sharing options...
dollar Posted September 19, 2009 Share Ah - sorry spotted - TT bike. So it's Biopace making a comeback? Link to comment Share on other sites More sharing options...
slowtwitch Posted September 19, 2009 Share 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 Link to comment Share on other sites More sharing options...
dollar Posted September 19, 2009 Share 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 Link to comment Share on other sites More sharing options...
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