Admin Posted June 22, 2021 Posted June 22, 2021 Hot on the heels of the RS 660 middleweight supersport, Aprilia introduced the 2021 Aprilia Tuono 660 as an exciting yet more approachable option into its legendary naked bike lineup. Anything with a Tuono badge has a lot to live up to. The Tuono 660 shares an identical liquid-cooled 659cc parallel-twin engine with the RS 660 supersport, which has been dissected by Technical Editor Kevin Cameron here. There are some differences in the Tuono’s electronic rider aids suite, however, including the lack of a factory-equipped quickshifter and inertial measurement unit (IMU), but both are offered as accessories for $200 each. The latter means that traction control and wheelie control settings cannot be independently adjusted as they can on the RS 660. 2021 Aprilia Tuono 660 dyno (Robert Martin/) Placed on our in-house Cycle World dyno, the Tuono 660 belted out an impressive 86.95 peak horsepower at 10,630 rpm and 44.95 pound-feet of torque at 8,860 rpm. Power delivery is mostly linear, but take note of (and listen to!) the slight bump around 7,000 rpm where the Tuono shows its personality in real-world situations. A broad and flat torque curve adds flexibility in gear selection, making for usable driveability at any rpm. It’s neat to see Aprilia already utilizing the impressive output and versatility of the new parallel-twin engine in multiple applications and with great success. In this instance, it helps the 660 rightfully earn its Tuono badging. View the full article Quote
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