• I have 11-40 with a 34/50. Shimano. I may get smaller rings as the mountain biking round cp4 sounds steep as

  • That's what I plan to run for TransPyr and TCR. I have Woolftooth if the new Ultegra Di2 won't fit 11-40. I have semi-compact on now but that's just what I had in the parts box so I'll have to get full Compact rings after RATN.

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