Ventus One Plus/V1+ EVO Primary Drive Pulley Kit V2 | EBG

Quick Specs

Ventus One Primary Drive Performance Upgrade

Ventus One Plus / V1+ EVO builds can place sustained torque loads on the primary drive during aggressive acceleration and off-road use. Performance modifications can add further stress to the belt and pulley teeth.

The EBG V2 primary drive pulley kit combines a lightweight 7075-T6 aluminum rear hub with a heat-treated 420J2 stainless steel tooth ring. This hybrid construction reduces unnecessary rotating mass compared with an all-steel pulley while adding a wear-resistant surface where the belt contacts the pulley.

The system is designed to support stable belt tracking, smooth power transfer and consistent drivetrain response during demanding riding.

Built for Stock and Modified Ventus One Builds

The EBG V2 kit is developed for everyday riding, off-road use and performance-modified Ventus One builds. Its heat-treated pulley teeth help maintain consistent tooth geometry during extended operation, while the carbon-reinforced belt provides quiet, low-maintenance power transfer.

This pulley kit does not increase motor horsepower by itself. It is designed to improve primary-drive durability, belt engagement and the consistency of power transfer.

Hybrid Rear Pulley Construction

• CNC-machined 7075-T6 aluminum hub
• Heat-treated 420J2 stainless steel pulley ring
• Lightweight multi-level CNC pocketing
• Premium anodized finish
• Wear-resistant stainless steel tooth section
• High strength-to-weight ratio

The aluminum hub provides strength with reduced weight, while the heat-treated stainless steel ring handles belt contact and tooth wear.

Heat-Treated 420J2 Front Pulley

The front pulley is CNC machined from heat-treated 420J2 stainless steel. Its hardened tooth profile is designed for consistent belt engagement, improved resistance to tooth wear and stable operation under high drivetrain loads.

Carbon-Reinforced Drive Belt

Full-kit configurations include an EBG carbon-reinforced drive belt in the selected width.

18mm Belt

Recommended for riders seeking a durable primary-drive upgrade with straightforward fitment and smooth everyday performance.

20mm Belt

Provides a wider belt contact surface for more heavily modified builds. Confirm available clearance and correct alignment before ordering.

Motor Fitment

Choose OEM Motor for the original compatible Ventus One motor configuration, or VTB Ryuga 52kW when the bike uses the listed VTB motor option.

If you are using an aftermarket motor or are unsure which option to choose, send us a clear photo of the motor output shaft before ordering.

This product is designed for Ventus One Plus / V1+ EVO and is not intended for other e-bike platforms.

Selectable Configurations and Package Contents

Front Pulley Only

• 1 × EBG heat-treated 420J2 stainless steel front pulley

Rear Pulley Only

• 1 × EBG hybrid rear pulley with 7075-T6 aluminum hub and heat-treated 420J2 stainless steel ring

Full Pulley Kit + 18mm Carbon Belt

• 1 × EBG hybrid rear pulley
• 1 × EBG stainless steel front pulley
• 1 × EBG 18mm carbon-reinforced belt

Full Pulley Kit + 20mm Carbon Belt

• 1 × EBG hybrid rear pulley
• 1 × EBG stainless steel front pulley
• 1 × EBG 20mm carbon-reinforced belt

Bonus included with every configuration: 1 × complimentary EBG Belt Tensioning Tool.

Installation Notes

• Select the correct product and motor option before ordering.
• Use the included EBG Belt Tensioning Tool to establish the initial belt tension.
• Check belt alignment, tension and clearance before riding.
• Check all fasteners and belt tension again after the first 50 km.
• Professional installation is recommended if you are unfamiliar with primary-drive alignment.

Frequently Asked Questions

Is this pulley kit made specifically for Ventus One?

Yes. Pulley geometry, shaft fitment and belt length are matched to the Ventus One Plus / V1+ EVO primary drive. It is not intended for other e-bike platforms.

Does this kit add horsepower?

No. The kit does not increase motor output. It is designed to improve belt engagement, drivetrain durability and the consistency of power transfer.

Which belt width should I choose?

Choose 18mm for general performance use and straightforward installation. Choose 20mm when a wider belt is required for a modified build, after confirming sufficient clearance.