B.O.R Chainrings 4 bolt Shimano

Discuss light weight issues concerning road bikes & parts.
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itsacarr
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by itsacarr

Anyone with experience with B.O.R chainrings shifting on eTap or Dura Ace 9000? B.O.R have some nice looking new shimano compatible 4 bolt mounted rings that I hadn't seen before. Wonder if anyone had any experience with shifting any of their rings.

by Weenie


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