I have no problem on my QR Lucero lite. Though I am using all dura Ace groupo except for K-Force lites w/q ring. ido have to ease into the small ring or I loose chain if I go to fast. They do make a little guide that hooks to front der to make that almost impossable. Probably no help to you but ...

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__________________________________________________
Official Polar Ambassador
http://www.google.com/...P7RiWyEVwpunlsc2JtQQ

Well, it does help a bit. If I can't fix the problem, I can put a DA FD and my problem is fixed ;-)

I;m using the Look proprietary cranks with a DA front der. and the shifting has been perfect from day one. As far as I can tell it shifts the same as round rings.

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Paul

i have that same setup but havent found any problems, trek madone here

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S�rgio Marques
When it hurts is when it feels good ;-)
Sergio-Marques.com

Hi Francois,

the problem is the angle of the braze-on; it's a littel more upright than normal so Specialized designed a spacer that essentially pushes the front derailleur back by 6mm and then it works just fine. by pushing it back (and down) it prevents the chain from rubbing on the little bridge on the front derailleur. we had a machine shop make some for us, and we have the longer bolts, but unfortunately they are not free since we obviously had to pay for them to be made, but I believe they are $8.00 (I'm away for the Christmas and all, so not at my office until the 31st). you can send me an email at kervin@rotorbikeusa.com and I can get one going as soon as I get back.

We have foud this to work on Guru and some 650c bikes as well.

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Kervin

Rotor Bike Components USA
OUR NEW WEBSITE http://www.rotorbikeusa.com

Thanks a bunch. Email sent.