These Schumacher Racing Products radius arms are a factory replacement pair for the CAT L1 EVO platform and its compatible vehicles. Each arm features two cylindrical mounting bosses connected by a rigid link body, providing the pivot geometry needed for proper suspension and steering function. Sold as a pair. Features: Sold as a pair Factory Schumacher Racing Products replacement Compatible across multiple Schumacher 1:10 platforms 7/7/26 cs