haven't the made 6800 tandem chain sets?!
if they had you could just put a standard double chain ring on there and had no problem with the use of di2 (apart from needing a wider range of gears...
@Sainsburys_Ed started
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haven't the made 6800 tandem chain sets?!
if they had you could just put a standard double chain ring on there and had no problem with the use of di2 (apart from needing a wider range of gears...