The signature big twin engine on the 2024 Harley-Davidson Road Glide gets a big upgrade for the new model year — literally. Compared with the Milwaukee-Eight 107 on the 2023 model year, the Milwaukee-Eight 117 engine on the 2024 model year uses its larger displacement to make 19 more horsepower and 19 more pound-feet of torque. In addition to the boosted power output, the engine on the 2024 model year is slightly more fuel efficient than the outgoing power plant.  This Whiskey Fire Road Glide wont last long, come in today and see it for yourself.