Originally Posted by
beermode
I don't mind some Frankenbike things. The 105 cassettes are said to wear less than Ultegras, and I prefer KMS chains to anything else. I don't know how the Ultegra cranks compare to Praxis though. I test rode a Tarmac with a Praxis and seemed pretty stiff, but I don't punch down kilowatts of energy.
Thanks for the great input. I wonder though if the Ultegra cassette shifts smoother. And, it must be a tiny bit lighter.