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Osymetric chain rings
http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=102873
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Author:  JesseD [ Sat May 12, 2012 8:52 pm ]
Post subject:  Osymetric chain rings

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

Author:  alibongo [ Sat May 12, 2012 8:56 pm ]
Post subject:  Re: Osymetric chain rings

Will you be drilling it to save weight?

Author:  Weenie [ Sat May 12, 2012 8:56 pm ]
Post subject:  Re: Osymetric chain rings


Author:  Glovetx [ Sun May 13, 2012 2:01 am ]
Post subject:  Re: Osymetric chain rings

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.

Author:  Machinenoise [ Sun May 13, 2012 5:46 pm ]
Post subject:  Re: Osymetric chain rings

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!

Author:  stella-azzurra [ Sun May 13, 2012 5:48 pm ]
Post subject:  Re: Osymetric chain rings

It only feels that way for a few minutes eventually you muscles adjust. Just buy the other matching ring.

Author:  JesseD [ Sun May 13, 2012 7:15 pm ]
Post subject:  Re: Osymetric chain rings

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

Author:  Machinenoise [ Mon May 14, 2012 7:58 pm ]
Post subject:  Re: Osymetric chain rings

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:

Author:  Zigmeister [ Mon May 14, 2012 8:38 pm ]
Post subject:  Re: Osymetric chain rings

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.

Author:  Weenie [ Mon May 14, 2012 8:38 pm ]
Post subject:  Re: Osymetric chain rings


Author:  JamieL [ Tue May 15, 2012 9:34 am ]
Post subject:  Re: Osymetric chain rings

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.

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