450CC 4 Stroke Dirt Bike | Water-Cooled Balance-Shaft 38kW 4-Stroke Motocross & Enduro Motorcycle, YKF-X NC450S
This 450cc 4 stroke dirt bike combines its engine and chassis equipment for motocross and enduro riding. It uses a four-stroke, water-cooled, built-in balance shaft NC450S engine with 38kW of listed output. The powertrain also includes electronic fuel injection, electric starting, and a 6-speed transmission. These features define how the bike starts, receives fuel, and transfers engine power. The three-way adjustable suspension lets riders change the chassis settings, while disc brakes and 350mm of ground clearance help complete the off-road setup.
| Engine Type | 4-Stroke, Built-in Balance Shaft, NC450S, Single cylinder, Water-cooled |
|---|---|
| Displacement (cc) | 450CC |
| Max Power (kW/rpm) | 38KW/9500rpm |
| Max Torque (N.m/rpm) | 40N.m/7000rpm |
| Start Mode | Electric Start |
From
| Quantity | Price | Discount |
|---|---|---|
| 1-3 | $5,047.00 | $0.00 |
| 4-36 | $4,274.81 | 15.3% |
| 37+ | $3,971.99 | 21.3% |
Orders are confirmed by quotation and Proforma Invoice. T/T, L/C for qualified bulk orders, and Alibaba trade assurance are available upon request.
Each vehicle is inspected before shipment. Photos, videos, packing details, commercial invoice, and packing list can be provided.
YKF-X NC450S 4 Stroke Dirt Bike
A high-output 450cc dirt bike for motocross and enduro buyers – built around a water-cooled NC450S balance-shaft engine, electronic fuel injection, electric start and an international 6-speed transmission.
A high-spec 450cc dirt bike built for dealers and importers
The YKF-X NC450S is built for wholesale buyers who need a stronger 4-stroke motorcycle in the 450cc category. Its NC450S engine combines water cooling, a built-in balance shaft and EFI for responsive power delivery, while KYB suspension, J.JUAN brakes, CNC aluminum hubs, DID rims and a Renthal fatbar give the bike a more premium hardware package.
For dealers, importers and fleet buyers, the NC450S gives you a visually aggressive enduro model with clear spec advantages and room for OEM/ODM branding.
Built around the parts buyers ask for
NC450S EFI Engine
Water-cooled, single-cylinder, 4-stroke NC450S engine with built-in balance shaft and electronic fuel injection.
38kW High Output
The NC450S engine delivers 38kW at 9500rpm and 40N.m at 7000rpm, giving dealers a serious 450cc-class performance model.
KYB Front Suspension
KYB 54/60-950mm double-chamber, double-adjustable front suspension for more serious enduro riding.
J.JUAN Disc Brakes
260mm dual-piston front disc brake and 240mm single-piston rear disc brake help complete the high-spec chassis package.
DID Wheels & Chain
DID aluminum rims and DID 520HDS chain add recognizable component value for dealers and serious riders.
350mm Ground Clearance
Long-travel stance, 1465mm wheelbase and 350mm ground clearance suit off-road, trails and enduro use.
Close-up selling points for your showroom
Use the details that matter: suspension, brakes, wheels, engine layout and cockpit parts. These are the areas buyers inspect first when comparing 450cc off-road motorcycles.
Full Spec Sheet
EU type-approval documents for European importers
YKF MOTO provides X03 / NC450 EU type-approval documents for European-market orders, helping importers move faster on compliance review and dealer preparation.
Who the NC450S is built for
The NC450S is a strong fit for dealers who need a more premium 450cc dirt bike for enduro, trail and motorsport-style markets.
Motocross Dealers
A sharp-looking 450cc model with high-spec components for showroom comparison.
Enduro & Trail Buyers
EFI, 6-speed transmission and long-travel suspension for rough outdoor riding.
OEM / ODM Projects
Suitable for buyers building a private-label 450cc dirt bike line.
Container Wholesale
CBU supply with 50 units per 40HQ for bulk distribution planning.
Factory-direct motorcycle wholesale partner
Direct From Factory
Manufacturer-side support for wholesale pricing, production planning and repeat orders.
OEM / ODM Welcome
Custom logo, color matching and packaging options for brand owners and distributors.
Export Packaging
Container-ready motorcycle supply for importers, wholesalers and dealer networks.
QC Before Shipment
Pre-shipment checks help reduce after-sales issues and protect your dealer reputation.
Parts Support
Spare parts support for repeat sales, repair service and fleet maintenance.
Global Buyer Support
Our team helps overseas buyers prepare specifications, documents and order details before shipment.
Wholesale Buyer Questions
What type of buyer is the YKF-X NC450S for?
Does this model use EFI?
What are the key premium components?
Can we order with our own brand?
Do you provide EU type-approval documents?
How do I get wholesale pricing?
Get a factory-direct quote on the YKF-X NC450S
Tell us your target quantity, destination market and branding needs. We will reply with factory-direct pricing, lead time and shipping options.
Request Wholesale QuoteAccessories Purchase
Vetted-supplier sourcing of frames, engines, drivetrain & electricals with full traceability.
Incoming Quality Control
AQL sampling on every inbound lot; non-conforming parts rejected and returned.
Product Assembly
Torque-controlled assembly lines with station-level checklists for ATV, UTV, dirt & pit bikes.
Process Quality Control
In-line inspection at critical stations; defects routed back to assembly for rework.
Finished Product
Engine run-in, brake, lighting, throttle and road-test verification on each unit.
Outgoing Quality Control
Pre-shipment AQL audit per ANSI/ASQ Z1.4; any failure loops back to assembly.
Finished Goods Warehousing
Climate-controlled storage, serialized bin locations and FIFO dispatch queue.
Packing & Shipping
Export-grade crating, fumigation, container loading plans and BL documentation.
Closed-loop rework
When PQC or OQC detects a non-conformity, the affected unit is routed back to Product Assembly with a traceable defect ticket. Nothing moves forward until it passes — zero-escape to our customers.
