Arrowmax s V2 gear differential set is designed as a direct replacement set to the previous version. Stronger and lighter by 10g than the previous version, the material of the main shalf has been reinforced and is now made in spring steel max carbon to ensure great durability and consistency over a long period of time. It makes the car easier to drive and is suitable for all track conditions. The gear differential set is made to fit on the majority of the 1/10 F1 cars on the market.