Serpent item SER500650 - 2.5mm Aluminium SDX4 hardcoated and light
The standard Aluminum hardcoated framework is 2mm, meaning that your 2.5mm will flex less which could make the SDX4 less aggressive and several other items direct to work a car specifically on greater traction tracks. The considerable maching could well keep the additional fat as a result of comparable values as the 2mm one !