The lever actuated system is available for the 150, 125, 105 and 9000 models. The optional ATR speed control system incorporates all of the features used on the smaller wheel 800 and 900 series, but the system on the Aero is more effective. For the Aero 150 the system has one neutral position and 4 resistance settings. The 125 has 3 resistance positions and the 105 and 9000 have 2 resistance positions. The ATR functions equally well in both dry and wet conditions.

The ATR assembly is made from aluminum, stainless steel and nylon. The large black anodized aluminum lever is easy to grab and pivots on solid stainless steel pins. Nylon rollers and washers are used to reduce noise generation by vibration from skiing on rough surfaces. Almost all Aero skis are sold with the speed reducer system.