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Rotor’s 1x13 groupset is an expensive engineering marvel that has a few small issues. Choosing to buy it over more established options would be a completely irrational decision for most of us but, despite its faults, we can’t help but love it. Rotor’s 1x13 groupset officially launched at last year’s edition of EuroBike. It follows in the footsteps of Rotor’s UNO groupset, a 2x hydraulic groupset that was first released way back in 2016. As the name suggests, it is a single ring only 13-speed groupset and
