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Discussion Starter · #1 ·
I am building up this ebay carbon frame with XT parts

http://cgi.ebay.com/Brand-New-12k-Carbon-Fiber-Mountain-Bike-Frame-18_W0QQitemZ360165196691QQcmdZViewItemQQptZMountain_Bikes?hash=item53db84c393&_trksid=p3286.c0.m14&_trkparms=65:12|66:2|39:1|72:1199|240:1318|301:0|293:1|294:50

which front deraill. would I use the M770 or M771? I don't know if I need top or bottom pull.


Thanks!
 

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You'll need a 34.9mm bottom swing (high clamp band), top pull front derailleur - model FD-M771.

The FD-M77x series comes mainly as dual pull units (I've not seen any single pulls) and supplied with shims to fit smaller diameter seat tubes, so there is less of a chance you can mess up with your choice.

Btw, is the stated frame weight accurate?
 

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Discussion Starter · #3 ·
thats great, thanks for the detailed info. as for the actual frame weight it should be here in a day or two. i'll weigh it up right away and post a reply.
 

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Discussion Starter · #4 ·
I got the fram yesterday, weighs in at 1370 grams, a bit more than the description, but it looks really nice. can't wait to build it up.
 
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