2021 Harley-Davidson Pan America & Bronx Prototypes
Harley-Davidson displayed its prototypes of the upcoming Pan America and Bronx middleweight motorcycles at EICMA, and revealed that both will use an all-new liquid-cooled V-Twin Revolution® Max engine.
The all-new 60-degree V-Twin Revolution® Max engine has been designed for a new range of Harley-Davidson motorcycles in two different displacements: 1250cc for the new Harley-Davidson Pan America™ and 975cc for the Harley-Davidson® Bronx™. The Pan America™ is designed as an all-new advanced adventure touring multi-purpose motorcycle, and the Bronx™ is a middleweight streetfighter model.
The new liquid-cooled 975cc and 1250cc Revolution® Max engine has a narrow profile that is integrated into the bike as a stressed member of the frame to enhance center of gravity and handling. The fully balanced powertrain has an internal counterbalancer that mitigates primary engine vibration to enhance rider comfort and improve vehicle durability.
Revolution® Max 1250 Engine Performance Targets
- Displacement 1250cc
- More than 145 horsepower
- More than 90 ft. lbs. peak torque
Revolution® Max 975 Engine Performance Targets
- Displacement 975cc
- More than 115 horsepower
- More than 70 ft. lbs. peak torque
Revolution® Max Engine Technical Features
- Liquid-Cooled V-Twin Architecture
o Since 1909 the V-Twin engine has been the centerpiece for legendary Harley-Davidson® motorcycles. This lineage continues into the middleweight performance space with the Revolution® Max engine.
o A 60-degree vee angle of the cylinders provides space for dual down draft throttle bodies that maximize air flow and increase performance.
o Liquid cooling maintains a controlled engine temperature for consistent performance in changing environmental and riding situations.