2021 Kymco AK 550

In April 2021, the AK550 underwent a slight update in which the ETS, the Ride by Wire electronic accelerator control system, was introduced and the SBA1 engine debuted, which was Euro 5 approved and delivered 51 HP (37.5 kW) at 7,500 rpm. It is fitted with 15″ 5-spoke alloy wheels with 120/70-15 tyres at the front and 160/60-15 at the rear.

The AK550 range was updated at the end of 2022 with the debut of the new variant called “Premium” which went on sale in spring 2023 and joined the "ETS" version. The AK550 Premium is a version designed for greater motorway comfort, it has the same frame and chassis as the AK550 ETA and stands out for its different specific body design: all the plastics are different and the front area is wider to better protect against aerodynamic noise at high speeds, larger LED headlights, higher electric windscreen, 15" five-spoke alloy wheels with 120/70-15 tyres at the front and 160/60-15 at the rear, new belt transmission with smaller dimensions. The AK550 Premium has a length of 2,000 mm, width of mm, height of 1,494 mm, wheelbase of 1,580 mm, dry weight of 238 kg mm and seat height of 790 mm. The engine is the twin-cylinder SBA1B 550 cc with 51 hp (37.5 kW) delivered at 7,500 rpm and 52.3 Nm of maximum torque at 5,750 rpm.