2020 will see the release of two new Harley-Davidson® models, the Pan America™ and the Bronx™, both powered by a brand new power plant – the Revolution® Max engine. We take a look at what the Revolution Max is all about…

More roads to Harley-Davidson®: the all-new Revolution® Max engine

2020 will see the release of two new Harley-Davidson® models, the Pan America and the Bronx, both powered by a brand new power plant – the Revolution® Max engine. We take a look at what the Revolution Max is all about…

At the EICMA show in Milan, Harley-Davidson® introduced two versions of the brand new Revolution® Max powertrain, a 975cc version powering the streetfighter-styled Bronx™, and a 1250cc version powering the Pan America™ adventure touring bike


The V-Twin, reimagined
The Revolution Max powertrain was created by Harley-Davidson for a range of new motorcycle applications as part of the More Roads to Harley-Davidson strategy, with the Bronx and the Pan America models the first examples of new models with the all-new powertrain.

The Revolution Max powertrain is an all-new liquid-cooled V-Twin designed to offer flexible performance with a broad powerband that builds to a surge of high-RPM power. Both new engines are 60-degree V-Twins, liquid cooled and with internal balancing. The V-Twin configuration provides a link to the Harley-Davidson heritage that has seen the V-Twin engine as the primary power source for bikes since 1911, often with the engine as a highlighted design element.

A focus on performance and a characterful ride experience drove the engine architecture, material choices, and aggressive component design optimization found in the new powertrain. To minimize overall motorcycle weight, the engine is integrated into the vehicle as the central member of the frame, while the use of lightweight materials helps achieve an ideal power-to-weight ratio.

The 60-degree ‘V’ angle of the Revolution Max cylinders provides the space needed for dual down-draft throttle bodies to maximise air flow and thus increase performance, while the narrow powertrain profile of the engine profile centralizes mass to enhance balance and handling.

Technical innovation
Liquid cooling of the engine maintains a controlled engine temperature for consistent performance in changing environmental and riding situations, whether riding at speed or stuck in traffic, cold to hot ambient temperatures, conservative or aggressive riding.

The Revolution Max engine also features internal balancing. The internal balancer cancels primary engine vibration to enhance rider comfort and improve vehicle durability, making for a lightweight, powerful and fully balanced powertrain. 

The innovative technical features designed into the Revolution Max powertrain make for some impressive power output figures. The 975cc engine found in the Bronx produces more than 115 horsepower and over 70ft/lb of torque, while the larger 1250cc engine of the Pan America produces more than 145 horsepower and over 90ft/lb of torque.

As well as the impressive power and performance figures of the new engines, at Harley-Davidson great pride is taken in the design and development of powertrains that look as good as they function, guided by the ethos of form and function reporting to emotion. Thus the proportions and contours of the Revolution® Max V-Twin engine evoke the muscular prowess and sculptural form of a professional boxer; the perfect V shape of broad shoulders tapering to a sleek waist. Bold and contoured, classic and contemporary, strong and svelte, the Revolution® Max engine is the next great marriage of muscle with style to grace the Harley-Davidson model line-up.

The Revolution® Max engine will be shipped from the Harley-Davidson® Pilgrim Road Powertrain Operations facility in Wisconsin, and the Pan America 1250 and Bronx 975 models will be available through authorized Harley-Davidson dealerships globally beginning in 2020. Find out more about these future vehicles here.