DRIVE CUP STEEL EXT HD FOR

• These are upgrade parts which compatible with X-MAXX 8S 77086-4, XRT 8S 78086-4;
• Replacement of Parts# 7754R, the drive cup;
• Super-tough steel for long-lasting durability during extreme RC action;
• The steel material is durable, and also improves the overall performance of the drive cups for X-MAXX 8S 77086-4 XRT 8S 78086-4;