I am considering a new Siena frameset. I can get a 2007 model at a slight discount but was wondering if there were improvements to the 2008 frame?

This may or may not be an improvement to you but the 2008's haave longer headtubes. For me using a 2007 in my size would mean a large stack of spacer which rings loud the ugly bell. The 2008 I could use only on 10mm spacer which is a look I can live with.

thanks, one more question... I need the 56cm frame. Will a longer head tube make much of a difference from a performance aspect?

thanks, one more question... I need the 56cm frame. Will a longer head tube make much of a difference from a performance aspect?

The performance can only be compromised if the fit is wrong and that would included requiring a stack height that exceeds the maximum allowable per the fork manufacturer. Althouth that would be a safety issue verses a performancr issue. By requiring a size 56 you need a M/L?

It was an 08, it looked the same as 07, 06, but it had a ht ext., not a super sloper tt.

Thanks for the all the input!

I just purchased a new 2006 siena frame (56 cm - M/L) and fork on e-bay and should have it by end of week. I may have other questions during the build.

Come to think of it I have one now.. I have two cranks that I can use. What is your opinion on a crank for this bike... 6500 Ultegra or an FSA Pro Team Issue Carbon? I think both are 03 models.

thanks

Anybody have a definitive answer as to what the differences are between the 06, 07 and 08 Siena frames?

The 06 and 07 appear idential - this is from research here and litespeed catalogues.

The 08 looks similar but with a taller heattube. any other differences?