Renthal 491--415-38P-BK Ultralight Rear Sprocket 38T KTM 50 SX 2014–2025

✨Renthal 491--415-38P-BK Ultralight Rear Sprocket 38T KTM 50 SX 2014–2025

The Ultralight rear sprocket is engineered to deliver optimal power transfer and reduced rotating mass for mini and electric motocross bikes. CNC-machined from premium 7075-T6 aluminum, this Renthal Ultralight rear sprocket offers exceptional strength while remaining significantly lighter than steel, helping improve acceleration, throttle response, and drivetrain efficiency.

Designed for competitive youth motocross and electric race applications, the Renthal Ultralight rear sprocket features an advanced tooth profile that allows the chain to roll smoothly on and off the sprocket. This design minimizes friction, noise, and wear while extending sprocket and chain life, making it a reliable choice for race prep, training, and performance-focused maintenance.

Key Features

• CNC-machined aluminum construction for precise fit and strength
• High-strength 7075-T6 aluminum alloy
• Approximately 33% lighter than comparable steel sprockets
• Ultra-light design reduces unsprung and rotating mass
• Optimized tooth profile for smoother chain engagement and longer wear

Vehicle Fitment

• 2014–2025 KTM 50 SX
• 2014–2020 KTM 50 SX Mini
• 2014–2016 KTM 50 SXS
• 2018–2024 Husqvarna TC50
• 2018–2019 Husqvarna TC 50 Mini
• 2024 Husqvarna EE 3
• 2021–2022, 2024 Husqvarna EE 5
• 2024 Gas Gas MC-E 3
• 2021–2024 Gas Gas MC 50
• 2021–2023, 2025 Gas Gas MC-E 5
• 2024 KTM SX-E 3
• 2021–2022, 2024 KTM SX-E 5

Frequently Asked Questions

What gearing advantage does a 38-tooth sprocket provide?
A 38-tooth sprocket offers a balanced setup between acceleration and top-end speed, making it suitable for a wide range of track conditions.

Is this sprocket suitable for race use?
Yes, it is designed for competitive motocross and electric mini racing where reduced weight and efficient power transfer are essential.

How durable is the aluminum construction?
The 7075-T6 aluminum used by Renthal provides excellent strength and wear resistance while significantly reducing weight compared to steel.

This rear sprocket is an effective upgrade for riders and mechanics looking to fine-tune gearing, reduce drivetrain weight, and maintain consistent performance on mini and electric motocross bikes.

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