hmm

Hi.. biopace in a single speed********** sorry? im missing something? Biopace chainrings are oval not rounded so no way to set the chain tension correctly, or is super streched or is lose at the other round... not in the middle? Do u guys put a RD or s RD supressor to use a biopace chain with a single speed or a fix gear bike?

I remember when biopace came out and as everybody I got a set of chain rings hehehe... (i used them for 3 days) Maybe for a road TT race might work but not usefull in a track at all, not even think in use them in a Road panamerican SC or some important race. I mean.. the concept it is fine but not usefull in real race conditions where u have to change the pace suddenly from 95rpms to 130rpms because of some attack or eat 30 or 40 kms chasing other competitors... no way try to sprint with them... i mean u can but again u'll stay there trying to go faster and seeing how other guys pass u as nothing... maybe in the amateur world or the street or for the fat "bastard" who bought a 6k bucks bike to being used on saturdays.

UM...

Ken Cox... great advice... awesome explanaition :)

i think this has been gone over before...biopace on ss/fg bikes and chain tension. i wanna say there was some way around that, but i can't remember what, or even if i'm remembering that correctly. and i can't think of anything that would make one of those chainrings work, not for the life of me...unless we're mistaken about the dimensions, but i doubt so.

I tension my chain to about an 1/8" slack at the tight point and 3/8" slack at the loose point.
I rarely feel the loose point.
However, the improvement in my climbing ability makes it worth the slight inelegance I rarely feel.

thanks :D

or the lack of plugs? (mmmmmm quad core sample)

or the fact that his saddle is too high?

The saddle does look a little high in the 6 and 12 picture. Other than that you just have to get used to spinning smoothly and applying resistance evenly throughout the pedal stroke if you're trying to slow down.

+1 on the saddle being too high.