• I'm on 52/36 R8000 which shifts great. Is 1tooth more going to make it explode?

  • No, it's not.

    I've used a 53/36 combination with absolutely no ill effect in t'Alps, and still run it with good effect to this day.

    Dura-Ace 9070 standard cage with 53/36 Ultegra 6800 chainset/ rings.

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