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Osymetric chain rings

Posted: Sat May 12, 2012 8:52 pm
by JesseD
Anyone know if you can use an osymetric outer chainring with a round inner ring?

Been offered one for free but it's only the outer!

Thanks all

Re: Osymetric chain rings

Posted: Sat May 12, 2012 8:56 pm
by alibongo
Will you be drilling it to save weight?

Re: Osymetric chain rings

Posted: Sat May 12, 2012 8:56 pm
by Weenie

Re: Osymetric chain rings

Posted: Sun May 13, 2012 2:01 am
by Glovetx
Not sure if you are supposed to but I did for a few weeks. It just felt really goofy (like pedaling with a square chainring) when going to the little round ring.

Re: Osymetric chain rings

Posted: Sun May 13, 2012 5:46 pm
by Machinenoise
You can, but will feel horrible! If its for road, don't bother, and for TT just use a single ring up front! if nothing else its lighter!

Re: Osymetric chain rings

Posted: Sun May 13, 2012 5:48 pm
by stella-azzurra
It only feels that way for a few minutes eventually you muscles adjust. Just buy the other matching ring.

Re: Osymetric chain rings

Posted: Sun May 13, 2012 7:15 pm
by JesseD
Think I might use it for TT's, just have to explain to the OH that as I have been given it for free I now need to build a TT bike as it will go to waste other wise! :D

Re: Osymetric chain rings

Posted: Mon May 14, 2012 7:58 pm
by Machinenoise
stella-azzurra wrote:It only feels that way for a few minutes eventually you muscles adjust. Just buy the other matching ring.


I meant that it will feel horrible switching between the rings, and will likely take longer than you'd like to adjust on the fly.
Am a long term user but still prefer round ones on the road bike. Have a new 54t TT ring in the post! :)

Yeh you clearly need a TT bike for them otherwise all will be wasted :mrgreen:

:up:

Re: Osymetric chain rings

Posted: Mon May 14, 2012 8:38 pm
by Zigmeister
It will really mess with your pedal stroke and the feel going from one to the other. You either need to run oval rings, or round rings. Don't go back and forth.

Re: Osymetric chain rings

Posted: Tue May 15, 2012 9:34 am
by JamieL
JesseD wrote:Think I might use it for TT's, just have to explain to the OH that as I have been given it for free I now need to build a TT bike as it will go to waste other wise! :D


Love this :up: . Got a new chainring so i need to build a bike to put it on...

Sounds very familiar.

Re: Osymetric chain rings

Posted: Tue May 15, 2012 9:34 am
by Weenie