Performance-focused riders now have a new way to unlock the full capability of the Zero XB and XE.
Sirris Suspension is officially partnering with Zero Motorcycles to bring premium, race-inspired suspension upgrades to the Zero X Line platform.
Designed specifically for electric off-road motorcycles, the new Sirris systems deliver improved control, confidence, and adjustability for riders pushing harder on the trail, at the track, or anywhere demanding terrain calls for more performance.
Purpose-Built Suspension for the Next Generation of E-Moto
Working closely together from the early stages of the X Line platform, Sirris developed custom-tuned suspension systems designed specifically for the XB and XE. The result is a true plug-and-play upgrade that transforms ride feel while maintaining seamless integration with the stock chassis.
From technical trail riding to aggressive race conditions, these systems are built to deliver:
• Increased front-end confidence
• Improved traction and stability
• More consistent damping performance
• Full rider adjustability
• Better balance across varied terrain
"Starting from the initial launch of our new X Line motorcycles, we’ve been working with Sirris to customize performance suspension profiles for the most demanding riding conditions. Now, we’re excited to offer these optimized solutions as turnkey upgrades to all our customers who want to push their XE or XB harder, whether they’re looking for more control on the trail or lining up to race."
— Garrett Johnson Zero Motorcycles VP of Sales & CX for North America
Sirris F43 CMX Fork for Zero XB
The new F43 CMX fork for the Zero XB is engineered as a direct bolt-on replacement for the stock front suspension.
Built around a symmetrical closed cartridge design with dual independent sealed dampers, the F43 is tuned specifically for the XB’s geometry and mixed-terrain riding characteristics.
Key highlights include:
• Fully adjustable compression, rebound, preload, and spring rates
• Multiple spring rate options for rider-specific tuning
• Compatibility with stock XB wheels and chassis geometry
• Simple installation using the stock Zero XB stem
Whether riders are looking for better compliance on rough terrain or more precision at higher speeds, the F43 delivers a substantial performance upgrade without compromising usability.
Learn more about the Sirris F43 CMX fork for Zero XB.
Full Front-and-Rear Suspension System for Zero XE
For riders demanding maximum capability from the Zero XE, Sirris is also introducing a complete F43/R46 suspension package.
The system combines the F43 fork with the Sirris R46 rear shock, tuned together to create a balanced, trail-focused setup with exceptional control and tunability.
The XE package offers:
• Fully adjustable front and rear damping
• Wide spring-rate compatibility
• Tuned geometry for improved handling
• Support for different rider weights and riding styles
• Compatibility with modified or upgraded bike configurations
Take a deeper dive into the full product specs:
> Sirris F43 fork for Zero XE
> Sirris R46 shock for Zero XE
Built by Riders, Tested in Real Terrain
Every Sirris suspension system is developed through extensive rider feedback, testing, and real-world validation.
With roots in high-performance suspension engineering and race-level tuning, Sirris focuses on creating e-moto solutions that improve rider confidence without adding complexity.
The collaboration with Zero Motorcycles reflects a shared commitment to advancing the performance potential of electric off-road riding.
Available Now
Sirris suspension upgrades for the Zero XB and XE are available now through authorized Zero Motorcycles dealers and directly at zeromotorcycles.com.
For more information about the Zero X Line platform, visit Zero Motorcycles.
