I like the LOOK 695. But somehow I believe there is some design issue with the ZED crank. Basically they have done a good job/design to create a one piece crank however they might have neglected the design of the interface of the spider crank with the chainring.
1. Using alloy chainring bolt is not a wise choice as most of them break and replacement is way too costly. Therefore is no way you can tighten the chainring to the max.
2. The chainrings are mated to the spider crank only on the x5 chainring bolts which I feel has minimum support and causes chainring to flex and generate creaking sound. When the ZED crank is in high load, the force is transferred to the inner/back side of the chainring bolt which is holding the chainring only by the circumference of the chainring bolts.
Unlike shimano or campy the chainrings are supported at the back by a L shape structure of the spider crank which I beieve provide a stiffer chainring interface.
2. You need special tools to replace the ball bearing from the ZED crank , which mean you are at the mercy of your bike workshop to chop your $$$$. Small parts of the ZED crank are not cheap too and not easily available.
These are the issues I am facing with my LOOK 695 and I am planning to use my Dura ace crank instead of the ZED 2 crank. Will never have a 2nd
[email protected]@K again.