“Nice, not perfect.”

“Do I like my 300's? Well yeah, but you should have a nice product for the outrageous MSRP. I don't love them, however. Myself or my bike techs could not get these cranks to work with any ISIS bb other than the one Zipp sells. My cranks were purchased independently from the bb, and it was extremely difficult for me to track one down at the time. Shifting is clunkier than with my Ultegra level shimanos. They are however, as they claim, the lightest and stiffest cranks on the market. I abuse my bike on rough roads, in muddy conditions, on gravel, in my car, wherever, and these [*]'s are tough.”