Flex Shaft St: 42" Blackjack
The official ProBoat Blackjack 42 Flex Shaft Set delivers smooth, reliable power transfer from your motor to the propeller. Designed as a direct OEM replacement part, this high-performance RC boat flex shaft ensures maximum speed and efficiency on the water.
Keep your ProBoat Blackjack 42 running at peak performance with this genuine factory replacement flex shaft set. Engineered to withstand high-torque 8S brushless power systems, this drive cable reduces friction and vibration, preventing drivetrain failure during high-speed runs. Essential for routine maintenance or repairing a damaged drive setup on your large-scale RC catamaran boat.
Is the ProBoat Blackjack 42 Flex Shaft Set a direct replacement part?
Yes, the ProBoat Blackjack 42 Flex Shaft Set is a genuine OEM replacement part engineered specifically to fit the ProBoat Blackjack 42 brushless RC boat without any modification.
How often should I grease the flex shaft on my ProBoat Blackjack 42?
You should inspect and grease the ProBoat Blackjack 42 Flex Shaft Set with high-quality marine grease after every 1 to 2 runs to prevent friction, heat buildup, and premature wear.
What causes a ProBoat Blackjack 42 Flex Shaft to snap or fray?
Flex shaft damage on the ProBoat Blackjack 42 usually occurs from insufficient marine lubrication, an improperly spaced drive prop gap, or hitting underwater objects at full throttle.







































