MX / MOTOCROSS SERIES / INTERNATIONAL B2B MOTORCYCLE
K85 4-Stroke
A higher-spec youth MX/Enduro motorcycle combining a 285.8cc four-stroke YB300H engine, 6-speed manual transmission, 21/18-inch wheels and adjustable suspension.
For professional buyers
Distributors · Importers · Dealer groups · OEM / ODM
K85 4-Stroke
01 · MODEL & SUPPLY OVERVIEW
Built around the realities of your market.
A clear view of the product, supply and market considerations that matter at the start of a motorcycle program.
Displacement
285.8 cc
Fuel system
Carburetor
Maximum Power
18 kW @ 8,000 rpm
Brake & Control
Disc / Disc
MOQ
SKD 32 Units
Lead Time
30–45 Days
Supply Format
SKD / CKD
Market Compliance
Reviewed by Target Market
Market compliance：reviewed according to the target market and confirmed separately.
02 · MARKET POSITIONING
A Higher-Spec Youth MX / Enduro Platform
The K85 4-Stroke is developed for youth off-road riders requiring a larger chassis, stronger powertrain and more developed suspension package than compact entry-level youth motorcycles. Its 21/18-inch wheel setup, adjustable suspension and 285.8 cc YB300H standard engine give the model a higher specification position within the KAMAX youth off-road range, while alternative four-stroke engine configurations can be reviewed for different rider levels and market requirements.
Primary Use
Youth MX / Enduro training · Recreational off-road riding · Closed-course riding
Market Fit
Youth off-road riders with prior riding experience
Portfolio Role
Higher-Spec Youth MX / Enduro Platform
03 · Product Highlights
Designed with purpose.
The key design, engineering and equipment decisions that shape the character and everyday performance of the model.
DESIGN
Larger Youth Off-Road Geometry for Developing Riders
The K85 4-Stroke uses a dedicated high-strength steel frame and 21-inch front / 18-inch rear wheel configuration, giving experienced youth riders a substantially larger off-road chassis than compact small-wheel models. A 920 mm seat height, 1,450 mm wheelbase and 330 mm ground clearance create the proportions required for more demanding off-road terrain, while the anti-slip seat supports frequent movement between seated and standing riding positions.
POWER
285.8cc Four-Stroke Power with 6-Speed Control
The standard K85 4-Stroke uses the 176FMN / YB300H, a 285.8 cc single-cylinder air-cooled engine producing 18 kW at 8,000 rpm and 23.5 N·m at 6,500 rpm. A manual clutch and constant-mesh 6-speed transmission provide a complete geared-motorcycle control system, while electric and kick starting provide two starting methods. For B2B projects, alternative four-stroke engine configurations can also be reviewed according to target rider level, required performance and market position.
CONTROL
Adjustable Chassis for More Advanced Youth Off-Road Riding
The K85 4-Stroke combines an adjustable inverted front fork with an adjustable linkage-type rear shock, allowing suspension response to be matched more closely to rider weight, terrain and riding requirements.
Forged aluminum triple clamps, a 6-series aluminum tapered handlebar, aluminum hubs and full-size 21/18-inch wheels create a more developed chassis package than smaller youth dirt bikes. The result is a youth-focused off-road platform with greater chassis size and setup capability for riders who have progressed beyond basic training motorcycles.EQUIPMENT
Rider-Control Hardware Focused on Off-Road Use
The standard K85 4-Stroke keeps its equipment focused on the parts that directly support rider control. An anti-slip seat and serrated stainless-steel footpegs support rider positioning, while front and rear chain guides help maintain chain alignment across uneven terrain. The clutch lever supports one- or two-finger operation for more precise clutch control. The standard configuration does not include a headlight, taillight or instrument, keeping the base motorcycle focused on off-road use.
04 · Technical specifications
Reference data. Project-approved detail.
Core technical data for product evaluation, market assessment and project planning.
Full project datasheet
Detailed specifications may vary according to destination market, selected equipment and approved project configuration.
Model
K85 4-Stroke
* Final technical details are defined by the confirmed project specification.
06 · OEM/ODM & Project Support
Configured for your
market and brand.
KAMAX supports distributors, importers and private-label partners with product configuration, brand customization, supply planning and market-specific preparation — all based on the technical feasibility and commercial scope of the project.
01 Product Configuration
CNC Folding Levers · CNC Aluminum Footpegs · Aluminum Handguards, Headlight · Taillight, Alternative Configurations Available by Project.
Subject to platform availability and feasibility
02 Brand Customization
Body Colors · Brand Logo · Racing Graphics · Number-Plate Graphics · Seat Graphics · Product Labels · Packaging
Subject to MOQ, artwork and production scope
03 Market Adaptation
Engine configuration · Lighting requirements · Instrument specification · Warning labels · Manual language · Product labeling · Destination-market compliance review
Subject to destination-market review
Project support
Flexible Supply
CBU / SKD / CKD project direction.
Export Documentation
Project-related export document support.
Spare Parts Planning
Initial-order spare parts planning support.
Container Planning
Packing and loading direction for shipment.
07 MANUFACTURING & GLOBAL EXPERIENCE
The capability behind every project.
08 · Related Models
Explore other products in the lineup.
Explore all Series
Cub · Underbone · Motocross · Dual-sports · Streets · Scooters · Electrics
09 · Buyer FAQ
Questions from
professional buyers.
Answers to common questions about ordering, customization, supply formats, compliance and after-sales planning.
10 · Start a project
Discuss this model
for your market.
Share your market, expected volume and product requirements. Our team will review the project and provide the relevant technical and commercial information.