There is a new geometry of the bike combined with the most up-to-date Shimano groupset made for newbie racing in XC and MTB marathons. The Shimano Deore M 5120 is really a 1x10 generate with a very new rear derailleur mechanism. Update March 2020: Undomestic has announced that they're manufacturing https://encapsuladosvip.com/lever-4-0/