component compatability

[Malb...@yahoo.com]

Dear Common Cycle
Question for building up a specialized allez. I have a Shimano 105
right side STI that is a 10 speed and a Shimano ultegra left side that
is 2 x 9. I was going to use a 10 speed rear derailleur but wanted to
know if I should use a 2 x 9 or a 2 x 10 for the front derailleur?
Also should I use a 9 or 10 speed chain? Or would it be a lot better
to just make sure my STI's match better? Any help would be
appreciated. Thanks
Malcolm

[Benjamin Schultz]

Hi Malcom,
Your front shifter doesn't care whether you're running 9 or 10 speed
in the rear. You need to use whatever chain matches your cassette (9
or 10 sp). Your shifters don't have to match; they're separate units.
Ben

[Malcolm Bell]

Thanks Ben,  this will help a lot.  When you guys meet at OA on Wednesdays can people come to get help with their bike?

---

From: Benjamin Schultz <benjamin....@gmail.com>
To: Common Cycle <commo...@googlegroups.com>
Sent: Friday, February 10, 2012 9:44 AM
Subject: Re: component compatability

[Benjamin Schultz]

That's why we're at OA on Wednesdays!
See you there,
Ben