OS MAX 15 RX Graupner 1884 2.49 cm³ capacity. High-power motor for competition use, rear exhaust, twin ballraces, special crankshaft, ABC piston/liner. The tail heat-sink head with large fin area guarantees excellent heat dissipation. Suitable for use in 1:10 scale R/C cars such as Mini IMPULS 10 4 WD, No. 4859, SUPER Mini IMPULS, No. 4857, and others.