Gravel Bike Marin Cortina AX1 Shimano Grx 2×10 Cyclocross Bike Posted June 24, 2024 Gravel Bike Marin Cortina AX1 Shimano Grx 2×10 Cyclocross BikeMarin cortina ax1 size 54 upgraded to Shimano grx hydraulic disc brakes, rotor crank, Pirelli tyres. More info on request. Cash/bank transfer on collection.