Legs; OK! Lungs; not!
Join Date: Apr 2009
Location: Coral Springs, FL
Bikes: ''09 Motobecane Immortal Pro (Yellow), '02 Diamondback Hybrid, '09 Lamborghini Viaggio, ''11 Cervelo P2
Ghost or Phantom Chain ring vs adjustable tensioner. Which is more efficient?
My tandem does not have an eccentric BB it has a chain tensioner on the sync chain. I've seen some posts and threads regarding the use of "Ghost" or "Phantom" chain rings in lieu of a chain tensioner.
Certainly it is a bit more eye catching, but on the MTB forums there is some discussion, and mention of them popping out. I suppose on a road bike that is much more unlikely, but still a possibility.
From the assembled wisdom of the experienced tandemistas that frequent this forum, what are your opinions on these vs the tensioner?
I got an old D.A. RD and salvaged and idler wheel with bearing to replace the stock wheel in my tensioner. I'm wondering if a Ghost wheel might be more efficient.
What are your thoughts?
NOTE: a few of the posts in the MTB forum mentioned that the rings should be rings with out ramps. What are your thoughts on that? That will limit the selection a little.
Last edited by bobthib; 03-05-11 at 03:54 PM.