KyVex Billet Cush Jackshaft | Surron Light Bee X, E Ride Pro, & more

KyVex Billet Cush Jackshaft | Surron Light Bee X, E Ride Pro, 79 Bike, Ventus & Rerode

Available for Pre-Order Now, Estimated Shipping End of July.

The

KyVex Billet Cush Jackshaft

is designed to solve one of the most overlooked weak points in the Surron Light Bee X drivetrain. Every time you accelerate or let off the throttle, shock loads are transferred through the rear sprocket hub. On higher-powered bikes, those repeated impacts can accelerate wear on the chain, sprocket, jackshaft, and other drivetrain components.

Precision CNC-machined from solid

6061 billet aluminum

, the KyVex Cush Jack helps absorb and dampen drivetrain shock before it reaches critical components. The result is smoother power delivery, reduced drivetrain stress, quieter operation, and a more refined riding experience, especially on bikes with upgraded motors, controllers, or batteries.

Installation is completely bolt-on with no cutting, fabrication, or special tools required. It installs in place of the factory component using the included hardware, making it an easy upgrade that pays off every time you ride.

Like every KyVex performance component, the Billet Cush Jack is proudly

made in the USA

from premium billet aluminum, not cast or stamped parts. It's available in six anodized finishes so you can match the look of your build while upgrading performance and durability.

Features

Manufactured by KyVex

Precision CNC-machined from solid 6061 billet aluminum

Absorbs drivetrain shock during acceleration and deceleration

Reduces wear on the chain, rear sprocket, jackshaft, and drivetrain components

Smoother, quieter, and more controlled power delivery

Direct bolt-on replacement, no modifications required

Engineered for stock and high-power builds

Available in Silver, Black, Blue, Purple, Red, and Gold anodized finishes

All installation hardware included

Made in the USA

Technical Specifications

Material: CNC 6061 Billet Aluminum

Manufacturer: KyVex

Country of Manufacture: USA

Installation: Direct bolt-on replacement

Hardware Included: Yes

Available Colors: Silver, Black, Blue, Purple, Red, Gold

Fitment

Surron Light Bee X

E Ride Pro S

E Ride Pro SS 2.0

79 Bike

Ventus V1

Rerode

Important Fitment Notice

Does NOT fit E Ride Pro 3.0

Does NOT fit E Ride Pro SR

Why Upgrade to a Cush Jack?

As power levels increase, drivetrain shock becomes more noticeable and more damaging over time. A cush drive system helps absorb those harsh impacts before they travel through the drivetrain, reducing component wear while making throttle transitions smoother and more predictable. Whether you're racing, riding technical trails, or simply want a more refined bike, this is one of the best reliability upgrades you can make.

Ideal for:

High-performance builds with upgraded controllers, motors, or batteries

Trail, enduro, and motocross riders looking to reduce drivetrain wear

Anyone wanting smoother throttle response and longer drivetrain life