Arrowmax 48P 21T 7075 Hard Pinion Gear - AM-348021

The Arrowmax AM-348021 Pinion Gear is a 48 pitch, 21 tooth pinion gear machined from 7075 aluminium for use in 1/10 and 1/12 scale electric RC cars running a 48P drivetrain. Arrowmax's choice of 7075-grade aluminium gives this pinion significantly greater hardness and wear resistance compared to standard 6061 alloy, making it a solid choice for competitive racing or regular track use where drivetrain durability matters. At 21 teeth, the AM-348021 sits in the mid-range of the 48P gear spectrum, offering a balanced gear ratio when paired with an appropriate spur gear.

Key Features

• Machined from 7075 hard aluminium for superior hardness and wear resistance over standard alloy pinions
• 48 pitch (48P) tooth profile for compatibility with standard 48P spur gears used across a wide range of 1/10 and 1/12 scale RC cars
• 21 tooth count provides a mid-range gear ratio suitable for balancing speed and torque on typical track surfaces
• Precision-cut teeth for consistent mesh and reduced drivetrain noise
• Compact, lightweight construction that adds negligible rotating mass

Compatible With

• Electric RC cars and buggies using a 48 pitch (48P) gear system
• 1/10 scale on-road and off-road electric RC platforms with 48P drivetrains
• 1/12 scale electric RC cars with 48P spur gears
• Motors with a 3.17mm (1/8 inch) shaft — confirm shaft diameter before ordering

What's Included

• 1x Arrowmax AM-348021 Pinion Gear 48P 21T (7075 Hard)