I have a group set ultegra Di2 in a BMC Time Machine 2014 just got the Q ring compatible with shimano. size 53/39 and it dosent fit, the local shop said this rings are supposed to be only for dura ace???? help
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Your local shop it's wrong.
Check the rotor website, there we can find lots of pdfs talking about rotor qrings compatibility.
I use a rotor QXL 53-39 with a quarq sram red cranck and durace 9070 group (brakes, fd, rd, chain...)
Check the rotor website, there we can find lots of pdfs talking about rotor qrings compatibility.
I use a rotor QXL 53-39 with a quarq sram red cranck and durace 9070 group (brakes, fd, rd, chain...)