Aebi has modernized the TT 241 and TT 281 mountain tractor models and introduced new versions to the market. According to brand representatives, the equipment received a new control system, PTO and optimized air conditioning system to increase efficiency and reliability. The additional designation “+” in the name of the updated series indicates the manufacturer’s optimization of its Aebi Terratrac TT 241+ 75 hp models. and Aebi Terratrac TT 281+ with 109 hp. The updated air conditioning system ensures optimal air circulation and constant temperature. New materials on the side walls and a special insulating coating on the housing reduce noise levels in the operator's compartment. By updating and optimizing the control system and PTO, the response of the hydrostatic transmission has improved and the aggregation of various attachments has been simplified.