Harley Davidson FLHTCUTG Tri Glide Ultra Trike 2015 Service Manual

TopSpeed's own review of this generation makes the development process clear: for Project Rushmore, "the folks at Harley not only asked riders what they wanted, but they worked with riders through development and testing to make sure it was right." First introduced in 2009 as Harley's return to three-wheeled motorcycles after the Servi-Car ended production in 1973, the Tri Glide Ultra got a genuine ground-up redesign for 2015 — not a cosmetic refresh.

Power comes from the Twin-Cooled High Output Twin Cam 103, a genuine engineering leap TopSpeed calls the strongest, hottest-running Twin Cam engine Harley had built to that point — partially liquid-cooled, circulating coolant through the heads and around the exhaust valves to a radiator tucked behind the lower fairings, keeping heat away from rider and passenger. Displacing 1,690cc via a 3.87 in. bore and 4.374 in. stroke with a 10.0:1 compression ratio, it delivers a claimed 106.2 lb-ft of torque at 3,750 rpm through a 6-speed Cruise Drive transmission with electric reverse actuated by handlebar controls — genuinely necessary given the trike's substantial mass and footprint.

The chassis was engineered from scratch specifically for three-wheel dynamics rather than adapted from a two-wheeled platform — Harley's own team lengthened and raked the front forks (enlarged to 49mm) and stiffened the triple clamp to optimize steering feel for a vehicle carrying entirely different forces than a standard touring bike. New rear-to-front linked brakes deliver genuinely stronger stopping power, using a 6-piston fixed front caliper, while new Daymaker LED headlamps and LED fog lamps improve night visibility considerably over the outgoing halogen setup. The redesigned Boom! Box 6.5 GT infotainment system brings a 6.5-inch full-color touchscreen and voice-activated control for music, phone, and GPS — genuinely car-rivaling convenience. Luggage compartments were reworked with more interior space, a sleeker exterior profile, and new one-hand-operable latches, claiming 6.8 cubic feet of total capacity. Dimensions run 105.1 in. long with a 65.7-inch wheelbase, 26-degree rake, and 27.1 in. laden seat height, riding on a 16-inch front and dual 15-inch rear wheel setup with a 6-gallon tank. 2015 pricing started at $32,999 for Vivid Black.