js wrote:Furthermore, if you're going to run a normal, 5-arm ring on the 4-arm (plus-hidden) on the Exogram, then you'll need to accept that you're going to give up a lot in terms of the timing of the shift ramps.
The rings are timed for each other. The two rings should always be aligned together, and if they are rotated together the timing remains the same. Heck, even in this very thread it's been covered and Praxis acknowledges that it works but can not be stated "officially" purely for marketing/sales purposes. If you take another pair of chainrings and install them on the Exogram, rotate to fit, it will work perfectly fine and you will not notice a difference in shift quality.
This thread, quite literally, has already covered everything with these arms and chainrings. It even covered the difference between BB30 and GXP crank arms with chainring compatibility.
It's surprising that on the 16th page of this thread people are stating things that have been proven otherwise earlier in the same thread.