Gruppo bici retrò MTB SRAM X9 FSA Comet KMC 2x10 velocità
SRAM X9, 10-speed rear derailleur. SRAM X9, double front derailleur. It's a direct mount type, I believe. 175mm long crank arms. SRAM X9, 2 x 10 speed shifters. KMC 10-speed chain with quick link.