Rear Sprocket MJ-CORSE KTM 390 Adventure 390 Enduro 390 SMC-R
Description
The MJ-CORSE rear crown It is designed to improve the final drive of the KTM 390, offering a perfect combination of lightness, strength and precision.
Made in ergal (high strength aluminum) Manufactured using CNC machining, it guarantees excellent power transfer and a weight reduction compared to steel sprockets. Its optimized design helps keep the chain clean and improves the efficiency of the drivetrain.
Available in multiple configurations, it allows you to adapt the bike's development according to the use: from higher top speed to greater acceleration off-road.
👉 Available in step 520 and with a range of 38 to 52 teeth, which allows for complete customization of the motorcycle's behavior.
⚠️ Important: Many crowns are made to order, so it is recommended to check measurements before purchasing.
Characteristics
- Rear crown MJ-CORSE specifically for KTM 390
- Chain pitch: 520
- Available teeth: 38 to 52
- High-precision CNC machining
- Improves power transmission
- Weight reduction compared to OEM
- Possibility of customizing the development
Materials
- Ergal (high-strength aluminum)
- High quality finish
- High wear resistance
Installation
Direct installation onto the original sprocket carrier without the need for modifications.
Advantages
- Improves acceleration or speed depending on development
- Weight loss
- Greater transmission accuracy
- Ideal for on-road and off-road use
- Fully customizable settings
Compatibility
-
KTM:
-
RC 125 > 2014 - 2024
- Duke 125 > 2014 - 2024
- 125 R Enduro > 2025 - 2026
- Duke 200 > 2015 - 2020
- RC 200 > 2014 - 2020
- Duke 390 > 2013 - 2022
- RC 390 > 2014 - 2024
- RC 390 R > 2014 - 2024
- 390 Adventure > 2020 - 2026
- 390 Enduro > 2024 - 2026
- 390 SMC-R > 2025 - 2026
-
RC 125 > 2014 - 2024
-
HUSQVARNA:
- Husqvarna SM 400 R
- Husqvarna Svartpilen 125 > 2021 - 2024
- Husqvarna Vitpilen 125 > 2024 - 2026
- Husqvarna Svartpilen 401 > 2017 - 2024
- Husqvarna Vitpilen 401 > 2017 - 2024