Boom Racing's Muscle Winch is a dedicated and fully waterproofed internal servo winch designed and engineered from the ground up, delivering strong pulling power and reliable performance for any R/C build.

A dual-trigger free-spool unit is integrated into the Muscle Winch for quick winch release. The free spool can be triggered by pressing the button on top or pulling the knob on the bottom, making it accessible from both sides — a major advantage when planning your winch layout. To release the rope, press the top button or pull the bottom knob to disengage the locking mechanism, then pull the rope to the desired length. Release the trigger and continue pulling until you hear a click; the locking mechanism re-engages and the winch is ready to use. Operating up to 12.6V (3S), the Muscle Winch produces up to 40KG (555oz) of torque.

• Fully waterproof internal servo winch designed for R/C builds
• Delivers strong pulling power and reliable performance
• Operates up to 12.6V with up to 40KG (555oz) of torque
• Features billet aluminium case and full metal gears for durability
• Includes metal scale winch hook for added convenience
• Requires spare channel with 3-position switch to control winch
• Can be used with or without free spool
• Radio-controlled cable release functionality included

• 1x Muscle Winch with Free Spool Unit
• 1x Nylon winch line (2m)
• 1x Metal Hook
• 1x Decal sheet
• 1x Instruction Manual

To avoid damaging the Muscle Winch, remove the hook from the rope if it is already attached before setting up the radio.

The battery must be disconnected from the ESC (if the ESC has a power switch) and the Muscle Winch when not in use, to prevent damage to the winch and battery. Do not connect the winch directly to the battery balance port. Damage caused by the above actions will void the warranty.