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.
Praxis is one of few (possibly only) manufacturers besides Shimano that cold-forges their chainrings, which supposedly results in better stiffness. They're generally well-regarded, though a little heavier and more expensive than Shimano options (as a stand-alone purchase).