P130
RIDE REVIEW I 2024 APRILIA RS 457
ENGINE
Aprilia's product manager,
Allesandro Galli, insisted the new
457cc parallel twin was not sim-
ply a "shrunk down 660," saying
they
started with a blank piece
of paper and a mission to build a
class-leading powerplant for the
latest sibling to the RS family.
The result is a liquid-cooled
forward-facing parallel twin-cyl-
inder with double camshafts and
four valves
per cylinder, which
reaches a maximum power of
47.6 horsepower at 9400 rpm.
When it comes to torque, the
RS 457 puts out 32 ft-lb at 6700
rpm. Aprilia claims the RS 457
makes 82 percent of that torque
by the 3000-rpm range.
Aprilia has taken lessons
learned from the larger RS mod
-
els to inform decisions on the
snack-sized
newcomer. The Noale
engineers fully integrated the cool
-
ing circuit and blow-by recovery
circuit
into the engine (eliminating
