Dave in VA
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Dave in VA
Portside Athletics Blog
1. The rings have multiple adjustment points which essentially - move the elliptical part of the ring - further around the crankset - so you experience a higher gearing at different parts of your crank arm positioning. There is a suggested starting point which you can simply change manually with an allen wrench - and there are suggestions as to the effect it has in different parts of the revolution - ie. the apparent gearing change you will experience
2. Front Der - all you need to do is move your front der higher up on the mounting bracket - to accommodate the higher point in the crank twice per revolution.
One of the differents of the ovl/osymetric vs mdt is that they can make the mdt in almost any (oval) shape you want/need ( i had the choice somewhere between 53t 20% and 55t 10%. They also look sexier. They are pricey though.
There is a neutral position with The Q Rings; Position 3. In this position, with the long axis of the ring totally vertical, the crank is at 16:00 in an imaginary clock.
Theoretically, the higest power is with the crank at 15:00, but this position dosnīt considere the inerce of pedalling. This is the regulation of the Osymetric Rings, and you can get that regulation with Position 1 with Q Rings.
For me, Position 3 was too easy to move, but very good if you have some type of knee injuries. The feelings (for me) was like to change to little ring without expeting it.
In position 2, at 15:30 (now Iīm using it), I take advantage of inerce, and my knee (injuried in 2003) is OK.
You can try position 4 or 5 to have minimal impact in your knee, and to avoid the point where you canīt applicate power (dead point???),,
Iīve seen powerful and low cadence cyclists being comfortable in position 1, but I think this position could be more indicated to high cadence cyclists.
Itīs easier to be accustomed to Q Rings if you came from round rings tha if you came from Rotor Cranks,,, anyway, this time uses to be very short
Another diference,, Osymetric is more squared in the dead point..
"How bad can it be?" - SimpleS
Yeah, I have a Cyclocross blog. https://crosssports.net/
I also coach, and do bike fit stuff. Info on that at - http://source-e.net/...member/matthew-hill/ and http://www.footworkscycles.com/node/16