AERO X 155

Like most modern fuel-injected engines, the Aerox 155 is tuned lean to meet emission standards, which shows up as throttle lag, extra heat, and a slightly jerky feel at low speed. The FuelX Pro is a plug-and-play fuel injection optimizer that automatically adjusts the air-fuel ratio in real time, so the scooter responds the instant you open the throttle.

The module continuously reads engine condition and riding style, recalibrating fueling to deliver smoother power delivery and improved torque without any permanent modification. It installs inline with the stock wiring in minutes, no cutting required, and keeps adapting as conditions change.

Riders notice a scooter that pulls away from a stop more confidently, holds a steadier throttle through traffic, and feels more refined overall, all from a small module that plugs straight in.

What it does:

• Corrects lean factory fueling for smoother throttle response
• Reduces throttle lag and low-speed jerkiness
• Improves torque delivery for quicker, smoother acceleration
• Continuously adapts to riding style and conditions
• Simple plug-and-play installation, no wiring cuts
• Fits Yamaha Aerox 155 (2022)