Koswork 48P 21T Aluminium Thin Lightweight RC Pinion Gear - KOS03001-21

The Koswork KOS03001-21 is a 48 pitch, 21 tooth aluminium pinion gear designed for use in electric RC cars running a 48P drivetrain. Machined from aluminium rather than steel, this pinion gear is noticeably lighter than standard options, which can reduce rotational mass on the motor shaft. It is a direct-fit choice for any RC vehicle that uses the 48 pitch gear standard, making it a straightforward swap for worn or damaged pinion gears of the same spec.

Key Features

• 48 pitch (48P) tooth profile for compatibility with standard 48P spur gears
• 21 tooth count suits mid-range gearing setups for a balance of acceleration and top speed
• Aluminium construction reduces weight compared to steel pinion gears
• Thin, lightweight profile designed to minimise rotational mass on the motor
• Style code KOS03001-21 for precise part identification when ordering

Compatible With

• Any electric RC car or buggy using a 48 pitch (48P) gear system
• Compatible with motors using the standard 3.17mm (1/8 inch) motor shaft where applicable — verify shaft diameter before fitting

What's Included

• 1x Koswork KOS03001-21 48P 21T aluminium pinion gear