Extra Volume / EV Series—Designed
for general road riders, featuring adjustable spring preload and an air preload assist system, with adjustable
rebound damping. The EV system increases gas volume within a limited space, effectively reducing heat generation during shock operation to stabilize oil temperature and damping force, thereby maintaining optimal performance. The EV
shock absorber is an entry-level option for general road enthusiasts looking to initially improve their vehicle’s stability.

.Monotube Oil-Gas Separation: The shock absorber features
a monotube oil-gas separation design. The monotube’s excellent heat dissipation effectively lowers the operating temperature of the damping oil, while the large-diameter piston serves as the foundation for a wide-range damping force adjustment. The oil-gas
separation also protects the damping oil from foaming, which could otherwise compromise damping force stability.
.High-Sensitivity Wide-Range Piston: The high-sensitivity wide-range piston, combined with a smooth oil channel design and the diverse torque variations provided by the large piston, ensures the shock absorber delivers the appropriate damping force required to effectively
dampen harmonic motion during operation at low, medium, and high speeds (across a wide range).
.Adjustable Spring Preload + Built-in Gas Preload: Spring preload can be fine-tuned to meet the rider’s
specific needs. Additionally, the built-in, precisely calculated high-pressure inert gas assists the spring preload, offering a wide range of settings while simplifying the setup process and saving time.
.Adjustable extension damping (rebound): With 15 effective
extension damping settings, riders can customize the setup to suit their own riding style.
.Enlarged Shock Body Gas Chamber: Based
on the principles of Boyle’s Law and the ideal gas equation, the original internal gas chamber volume has been increased within a limited space, ensuring that the compressed gas chamber volume does not become too small and generate excessive heat.
.Length Adjustable: For certain
models, the maximum length can be adjusted by 5 mm, allowing riders to fine-tune the vehicle’s ride height, rake angle, and center of gravity.
.12-Month Warranty: A guarantee of quality
service—the shock absorber comes with a 12-month warranty (limited to Taiwan proper).