The base material used for EXP 4.0 has been updated to provide better strength in high temperature environments, critical for the heat clutch systems create. Next, the internal wall of the EXP 4.0 bases were redesigned for strength and rigidity, which helps translate to a more connected lever feel for the rider. On the outside of the EXP disk, riders will notice the friction pads now match the proprietary friction design found on Rekluse TorqDrive clutch plates. Applying this friction pad design helps match oil flow characteristics of the clutch pack beneath, promoting improved cooling capability and consistent operation. The ‘wedges’ are a critical component to the centrifugal functionality of EXP 4.0. In the previous iteration, the Teflon wedges would slide up and down ramps built into the EXP bases to engage and disengage the clutch. EXP 4.0’s wedge has been improved to now use rolling contact with built-in pins. Rolling versus sliding creates less friction and resistance, providing smoother engagement and a more responsive feel, creating stronger power delivery overall. New roller design reduces the friction coefficient by 98% When you need the best, look no further than RadiusCX it is the top of the line auto clutch product that brings together all of our latest technology into one package. TorqDrive friction disk technology coupled with the new EXP 4.0 and our Core technology results in significant advancement in auto performance with exceptional hook-up, lever feel and durability. Just when you thought auto couldn’t get better, RadiusCX 4.0 has raised the bar.
The REKLUSE Racing RadiusCX 4.0 Clutch offers advanced auto clutch technology designed to enhance performance, durability, and rider control on a variety of modern dirt bikes. Featuring a redesigned base material that withstands high-temperature environments, this clutch ensures consistent operation even under demanding conditions. The internal wall reinforcement provides increased strength and rigidity, resulting in a more connected and responsive lever feel for the rider. The clutch's exterior friction pads are now aligned with the proprietary TorqDrive clutch plate design, promoting optimal oil flow, improved cooling, and reliable engagement during rides.
Central to the RadiusCX 4.0's performance improvements are the upgraded wedges equipped with built-in pins that enable rolling contact. This new design reduces friction by 98%, allowing for smoother engagement, quicker response, and stronger power delivery. The roller system minimizes resistance compared to traditional sliding wedges, providing a more seamless and controlled riding experience. This innovative feature contributes to better throttle response and rider confidence, particularly in challenging terrain.
Designed for high-performance applications, the RadiusCX 4.0 includes features such as longer clutch life, less need for adjustments, and the ability to override auto functionality with full clutch lever use. It allows riders to run taller gears, optimize suspension performance, and extend engine longevity. The clutch's engagement curve has been refined to match the characteristics of modern motorcycle engines, making it suitable for competitive and recreational riding alike. With its combination of upgraded materials, innovative wedge design, and proven TorqDrive technology, the RadiusCX 4.0 delivers superior hook-up, smooth engagement, and exceptional durability, setting a new standard in auto clutch performance.
Compatible with a range of models including 2017 Husqvarna FX 450, 2015-2017 KTM 450 SX-F Factory Edition, 2016-2017 Husqvarna FC 450, and 2016-2017 KTM 450 XC-F, this clutch is an essential upgrade for riders seeking maximum control and reliability on the trail or track.
Features:
- Auto Clutch Benefits: Eliminates stalling, start and stop without engaging the clutch lever
- Increased power transfer over OEM for improved performance
- Allows taller gear ratios for better suspension efficiency and energy savings
- Longer clutch life with less adjustments needed over time thanks to TorqDrive technology
- Full clutch lever functionality remains for manual override at any time
- Enhances rider control, traction, and confidence in challenging terrain
- More direct power delivery and improved durability with the EXP 4.0 upgrade
- Reinforced base material for high-temperature strength and durability
- Revised base design improves rigidity and lever feel
- Innovative wedge design with pins enables rolling contact, ensuring smoother engagement
- Friction pad design matches optimized oil flow for better cooling
- Updated engagement curve to suit modern motorcycle engine characteristics
Fits
2015 KTM 450 SX-F Factory Edition
2016 Husqvarna FC 450
2016 KTM 450 SX-F
2016 KTM 450 SX-F Factory Edition
2016 KTM 450 XC-F
2017 Husqvarna FC 450
2017 Husqvarna FX 450
2017 KTM 450 SX-F
2017 KTM 450 SX-F Factory Edition
2017 KTM 450 XC-F
2018 Husqvarna FC 450
2018 Husqvarna FX 450
2018 KTM 450 SX-F
2018 KTM 450 SX-F Factory Edition
2018 KTM 450 XC-F
2019 Husqvarna FC 450
2019 Husqvarna FX 450
2019 KTM 450 SX-F
2019 KTM 450 SX-F Factory Edition
2019 KTM 450 XC-F
2020 Husqvarna FC 450
2020 Husqvarna FX 450
2020 KTM 450 SX-F
2020 KTM 450 SX-F Factory Edition
2020 KTM 450 XC-F
2021 Gas-Gas EX 450F
2021 Gas-Gas MC 450F
2021 Husqvarna FC 450
2021 Husqvarna FX 450
2021 KTM 450 SX-F
2021 KTM 450 XC-F
2022 Gas-Gas EX 450F
2022 Gas-Gas MC 450F
2022 Husqvarna FC 450
2022 Husqvarna FX 450
2022 KTM 450 SX-F
2022 KTM 450 XC-F
2023 Gas-Gas EX 450F
2023 Gas-Gas MC 450F
US Dollars
