i guess it's fitting my first post is one asking for help. i'm currently revamping my bike by working towards an ultegra 6500 conversion. in the future i might go full ultegra, or throw in some d/a components. i don't know yet. my question is what else would i need to get a working group:

Ultegra 6500 crank (double 53x39t)
Ultegra 6500 bb
Ultegra 6500 front der

and i hope to pair this, at least for the time being with...

105 rear der (long cage)
Tiagra 9spd cassette 12x25t
Tiagra Shifters

thanks guys.

i guess it's fitting my first post is one asking for help. i'm currently revamping my bike by working towards an ultegra 6500 conversion. in the future i might go full ultegra, or throw in some d/a components. i don't know yet. my question is what else would i need to get a working group:

Ultegra 6500 crank (double 53x39t)
Ultegra 6500 bb
Ultegra 6500 front der

and i hope to pair this, at least for the time being with...

105 rear der (long cage)
Tiagra 9spd cassette 12x25t
Tiagra Shifters

thanks guys.
The Tiagra, 105 & Ultegra 9-speed are completely compatible. Mix and match as you please. - TF

thanks for the heads up turtle...i got a sweet deal on a set of ksyrium equipes so i'll probably end up going with a new 6500 cassette anyways.