Merida Reacto 5000 Carbon Road Bike Shimano Ultegra 58cm L 2017 Posted January 9, 2024 Merida Reacto 5000 Carbon Road Bike Shimano Ultegra 58cm L 2017Shifters: Shimano Ultegra 6800. Front Derailleur: Shimano Ultegra 6800. Rear Derailleur: Shimano Ultegra 6800. Year of Production: 2017. Rear Cassette: Shimano 105 (11:26 ratio).