Do you have a Core EXP 3.0, RadiusX 3.0, or RadiusCX 3.0 auto clutch system in your bike? This is the EXP 4.0 upgrade kit for you! Quickly and easily upgrade your existing auto clutch system to enjoy the benefits of Rekluse's next-generation auto clutch technology: EXP 4.0. This upgrade includes a redesigned EXP 4.0 disk fully assembled with Rekluse's recommended tuning settings. Replace your EXP 3.0 disk with your new EXP 4.0 disk and you're ready to ride!
- Consists of: EXP Bases, Rolling Wedges, EXP Springs, Quarter Turn Pins
- More direct power delivery, improved durability, and rider-focused functionality
- Upgraded base material providing improved strength at high temperatures
- Revised base design improving strength and rigidity, translating to more connected lever feel
- Improved wedge design with pins allows for rolling instead of sliding to expand the disk, creating a more responsive feel and smoother engagement
- TorqDrive friction pad design matches revised oil flow characteristics
- Engagement curve designs updated to better match modern motorcycle engine characteristics
- More tuning options with varying wedge weights and EXP springs
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2018-2019 | Beta | RR 250 | |
| 2020-2021 | Beta | RR 250 2 Stroke | |
| 2018-2019 | Beta | RR 250 Race Edition | |
| 2018-2021 | Beta | RR 300 2 Stroke | |
| 2018 | Beta | RR 300 Race Edition | |
| 2019-2021 | Beta | RR-Race Edition 250 | |
| 2019-2021 | Beta | RR-Race Edition 300 | |
| 2021 | Beta | RX 300 | |
| 2018-2021 | Beta | Xtrainer 300 | |
| 2021-2025 | Gas Gas | EC250 | |
| 2021-2026 | Gas Gas | EC300 | |
| 2024-2025 | Gas Gas | ES350 | |
| 2022-2025 | Gas Gas | EX250 F | |
| 2022-2026 | Gas Gas | EX300 | |
| 2022-2026 | Gas Gas | MC250 | |
| 2025 | Gas Gas | MC300 | |
| 2021 | Gas Gas | XC300 | |
| 2013 | Husaberg | TE250 | |
| 2013 | Husaberg | TE300 | |
| 2024 | Husqvarna | FE350 Pro | |
| 2024-2026 | Husqvarna | FE350S | |
| 2024 | Husqvarna | FE350W | |
| 2014-2026 | Husqvarna | TC250 | |
| 2025 | Husqvarna | TC300 | |
| 2014-2019 | Husqvarna | TE250 | |
| 2025-2026 | Husqvarna | TE250 | |
| 2018-2024 | Husqvarna | TE250i | |
| 2014-2019 | Husqvarna | TE300 | |
| 2025-2026 | Husqvarna | TE300 | |
| 2024-2026 | Husqvarna | TE300 Pro | |
| 2018-2024 | Husqvarna | TE300I | |
| 2017-2019 | Husqvarna | TX300 | |
| 2020-2023 | Husqvarna | TX300i | |
| 2013-2019 | KTM | 250 EXC | |
| 2023-2025 | KTM | 250 EXC | |
| 2025 | KTM | 250 EXC F | |
| 2024-2025 | KTM | 250 EXC F Six Days | |
| 2016 | KTM | 250 EXC Six Days | |
| 2018-2019 | KTM | 250 EXC Six Days | |
| 2021 | KTM | 250 EXC Six Days | |
| 2023 | KTM | 250 EXC Six Days | |
| 2025 | KTM | 250 EXC Six Days | |
| 2013-2026 | KTM | 250 SX | |
| 2013-2019 | KTM | 250 XC | |
| 2024-2026 | KTM | 250 XC | |
| 2020-2022 | KTM | 250 XC TPI | |
| 2013-2018 | KTM | 250 XC-W | |
| 2018-2020 | KTM | 250 XC-W TPI | |
| 2013-2019 | KTM | 300 EXC | |
| 2023-2025 | KTM | 300 EXC | |
| 2022 | KTM | 300 EXC Erzbergrodeo | |
| 2024-2026 | KTM | 300 EXC Hardenduro | |
| 2016 | KTM | 300 EXC Six Days | |
| 2018 | KTM | 300 EXC Six Days | |
| 2021-2023 | KTM | 300 EXC Six Days | |
| 2025 | KTM | 300 EXC Six Days | |
| 2023-2026 | KTM | 300 SX | |
| 2013-2019 | KTM | 300 XC | |
| 2024-2026 | KTM | 300 XC | |
| 2013-2018 | KTM | 300 XC-W | |
| 2024-2026 | KTM | 300 XC-W Hardenduro | |
| 2014-2018 | KTM | 300 XC-W Six Days | |
| 2019-2022 | KTM | 300 XC-W TPI | |
| 2020-2022 | KTM | 300 XC-W TPI Erzbergrodeo | |
| 2019 | KTM | 300 XC-W TPI Six Days | |
| 2024-2026 | KTM | 350 EXC F | |
| 2025 | KTM | 350 EXC F Six Days | |
| 2024 | KTM | 350 XW-F | |