AVAILABLE FOR PRE-ORDER – Expected arrival: January 2027

# Manufacturer Warranty Handling – Free of Charge
Included in the purchase price of the motorcycle. In the event of a malfunction, MXGuards will manage the warranty process with the Chinese manufacturer. Please note that the manufacturer’s assessment and the procurement of parts may result in a longer processing time.

# MXGuards Extended Warranty Package – +150,000 HUF (gross)
Faster processing, less waiting! In the event of a warranty-covered malfunction, your case will be prioritized. Whenever possible, we will supply the necessary parts from our own stock to get you back on your bike as quickly as possible.
This package does not guarantee immediate repair; parts availability depends on current stock. Your statutory warranty rights remain fully valid in either case.

HENGJIAN S9-YB300H RACE Overview

The HENGJIAN S9-YB300H RACE is a full-size, 300 cc-class 4-stroke enduro motorcycle built around the proven YB300H single-cylinder engine, delivering reliable power and control for demanding off-road a race-focused variant in the S9 family, it combines an off-road chassis with a lighting and instrument package plus upgraded suspension, braking components and reinforced drive parts for intensive training and amateur competition.

Key Features

YB300H 4-stroke, single-cylinder engine for simple, durable performance in a 300 cc-class package.
Approx. 285.8 cc displacement with a balanced output of 18 kW power and 23 Nm torque for controllable drive on loose terrain.
Air-cooled construction to keep the engine layout mechanically straightforward and easy to maintain in off-road conditions.
6-speed manual gearbox with wide-ratio transmission for responsive acceleration and flexible gearing across slow technical sections and faster special stages.
Full-size 21" front and 18" rear off-road wheel combination for stability, obstacle clearance and predictable handling in ruts, sand and roots.
Inverted front fork and rear monoshock suspension with long travel, tuned for enduro and cross-country riding.
Hydraulic disc brakes front and rear for consistent stopping performance in mud, dust and wet conditions.
RACE equipment level with headlight, tail light and handlebar-mounted instrument panel, plus premium suspension, brake and chain components for intensive off-road use.

Technical Highlights

Model	HENGJIAN S9-YB300H RACE
Category	Full-size off-road enduro / motocross motorcycle
Engine type	Single-cylinder, 4-stroke, YB300H platform
Displacement	285.8 cc (YB300H engine family data)
Cooling	Air-cooled
Rated output	18 kW power, 23 Nm torque (manufacturer YB300H specification)
Fuel system	Carburettor-based intake system, configured for off-road torque delivery
Transmission	6-speed manual, chain final drive
Front wheel / tyre	21" off-road wheel with knobby tyre for directional stability and precise steering inputs
Rear wheel / tyre	18" off-road wheel with high-traction knobby tyre for drive and bump absorption
Front suspension	Inverted telescopic fork with long travel, tuned for enduro and motocross terrain
Rear suspension	Monoshock rear suspension with linkage-style swingarm for traction and comfort
Front brake	Hydraulic disc brake
Rear brake	Hydraulic disc brake
Lighting & cockpit	Headlight and tail light with integrated instrument panel for basic riding information
Drive components	Premium chain and braking hardware specified for frequent off-road riding

Typical Use Cases

Off-road enduro riding on forest trails, gravel roads and technical singletrack.
Motocross and enduro training days on natural and man-made tracks.
Club-level and amateur enduro or cross-country competition where a robust 4-stroke platform is preferred.
Off-road rider schools, rental fleets and training environments requiring a durable, full-size 300 cc-class motorcycle.

Specification