Rovan Buggy. Its internal geartrain uses a combination of copper and aluminum for optimal strength-to-weight performance. HPI Baja 5B. HPI Baja 5T. Gear Type: Copper & Aluminum. With its high torque output, durable construction, and waterproof capability, the LW-30MG is a dependable choice for enthusiasts seeking precision and power in harsh or wet conditions.
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