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 is engineered to deliver exceptional performance and durability for Yamaha YZ450F and YZ450FX models from 2010 to 2017. Featuring an upgraded base material, this clutch offers improved strength at high temperatures, which is critical during demanding riding conditions. The internal wall of the EXP 4.0 base has been redesigned to enhance strength and rigidity, resulting in a more connected and responsive lever feel for the rider. The friction pads on the outside of the EXP disk now match the proprietary friction design found on Rekluse TorqDrive clutch plates, promoting better oil flow, enhanced cooling, and consistent operation for reliable performance during intense riding sessions.
Features:
- Auto Clutch Benefits: Eliminates stalling and allows smooth start and stop without clutch lever engagement
- Enhanced Power Transfer: Provides increased power transfer over original equipment manufacturer (OEM) systems
- Gear Tuning Advantage: Enables riders to run a taller gear, improving suspension efficiency and reducing rider fatigue
- Durable Clutch Pack: TorqDrive friction disk technology ensures longer clutch life with minimal adjustments
- Full Control: Maintains full clutch lever operation to override auto functionality when needed
- Rider Confidence: Improves control, traction, and confidence across challenging terrains
- Upgraded Base Material: Offers superior strength and resistance to high temperatures for increased durability
- Revised Base Design: Improves strength and rigidity for a more connected feel at the clutch lever
- Innovative Wedge Design: Features pins and rolling contact for smoother engagement and a responsive feel
- Optimized Friction Pads: Match the revised oil flow characteristics for better cooling and consistent operation
- Updated Engagement Curves: Better align with modern motorcycle engine dynamics for seamless power delivery
Fits
2010 Yamaha YZ450F
2011 Yamaha YZ450F
2012 Yamaha YZ450F
2013 Yamaha YZ450F
2014 Yamaha YZ450F
2015 Yamaha YZ450F
2016 Yamaha WR450F
2016 Yamaha YZ450F
2016 Yamaha YZ450FX
2017 Yamaha WR450F
2017 Yamaha YZ450F
2017 Yamaha YZ450FX
2018 Yamaha WR450F
2018 Yamaha YZ450F
2018 Yamaha YZ450FX
2019 Yamaha WR450F
2019 Yamaha YZ450F
2019 Yamaha YZ450FX
2020 Yamaha WR450F
2020 Yamaha YZ450F
2020 Yamaha YZ450FX
2021 Yamaha WR450F
2021 Yamaha YZ450F
2021 Yamaha YZ450FX
2022 Yamaha WR450F
2022 Yamaha YZ450F
2022 Yamaha YZ450FX
2023 Yamaha WR450F
2023 Yamaha YZ450FX
2024 Yamaha WR450F