Which means the Freedom 106 cubic-inch 50-degree V-twin powers the Gunner, its four-valve heads (and hydraulic lifters) making this one of the best-running cruiser engines on the market. The engine, gearbox, and primary drive have continued to be refined over the years. Major upgrades came in 2011, with redesigned shift dogs and strategic use of helical gears to both quiet operation and reduce drive lash. Neutral assist was also added, which, as the name implies, makes finding neutral easier. Overall, this is a nice-shifting mechanically quiet powerplant that is much more refined in operation than early versions of the 106/6 powertrain.