It's no secret that Indian has been diligently building a new class-leading liquid-cooled V-Twin, but now the cat is completely out of the bag. Indian is stoking the flames of the horsepower wars with the release of its new PowerPlus engine with a claimed 122 horsepower and 128 lb-ft. of torque. The liquid-cooled PowerPlus is making its debut as the powerplant for the 2020 Challenger, Indian’s newest bagger with a frame-mounted fairing.

“We challenge our engineers with the notion that anything less than best-in-class design and performance will simply not get it done, and it’s clear with this new engine that they have delivered on that high standard,” said Steve Menneto, Indian Motorcycle President. “Countless hours were spent in design, development and testing to ensure this is the best liquid-cooled V-Twin ever developed, and I could not be prouder of our team and this incredible motor.”

In regards to Mennoto’s statement about best-in-class performance, comparatively the 2020 Harley Road Glide Limited with the Milwaukee-Eight 114 puts out a claimed 122 lb-ft. while Yamaha’s 1854cc Star Eluder reportedly puts out 126 lb-ft.

Similar to the 1133cc engine used in the Indian Scout, the new Indian PowerPlus has overhead camshafts with four valves per cylinder but otherwise is a clean sheet design. The engine features hydraulic valve lash adjusters and hydraulic camshaft chain tensioners and its big pistons will be fed by 52mm dual bore throttle bodies. Its rev range is said to have a higher ceiling of 6,500 rpm which is about 1,000 rpm more than its primary competitor. The unit construction crankcase utilizes a semi-dry sump oil system while the six-speed transmission comes with a true overdrive. It also has an assist clutch to keep clutch pull light. Riders will be able to customize throttle mappings and traction control settings via three ride modes – Rain, Standard and Sport. The PowerPlus will be built in Osceola, Wisconsin, while final motorcycle assembly will take place in Indian Motorcycle’s production facility in Spirit Lake, Iowa.

The name of Indian's new engine pays homage to the Indian PowerPlus motorcycle produced from 1916 to 1924.

Indian Motorcycle PowerPlus Engine Specifications:

·         Engine Displacement: 108 cubic inches (1769 cc)

·         Horsepower: 122 hp at 5,500 rpm

·         Torque: 128 lb-ft. at 3,800 rpm

·         Maximum Engine Speed: 6,500 rpm

·         Architecture: 60-degree V-Twin, liquid-cooled powerplant

·         Crankcase: Unit design featuring a high capacity semi-dry sump oil system

·         Timing System: Overhead camshafts and four valves per cylinder

·         Fuel System: Electronic fuel injection. 52mm dual bore throttle bodies

·         Compression Ratio: 11:1

·         Transmission: Six-speed with true overdrive, constant mesh

·         Clutch: Assist clutch