IIRC one doesn't want to exceed a 16 tooth difference between the 2 chain rings in order to have decent shifting.

YMMV,

Hugh

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Genetics load the gun, lifestyle pulls the trigger.

My buddy is a top mechanic at a LBS here in LA, rides that exact setup and says it works just fine for him. I think he runs di2 with that setup, but either way it's 9070 or 9000.

We are going to try 53/36 aero Q-Rings on my bike soon. Hoping that combo works well, since for some reason no one seems to make a 37T inner ring.

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Amateur recreational hobbyist cyclist
https://www.strava.com/athletes/337152
https://vimeo.com/user11846099

You know how minimal the difference is between a 36, 37 and 38 tooth chainring :)

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Rodney
TrainingPeaks | Altra Running | RAD Roller
http://www.goinglong.ca