SM2YM-12 DK400 – Factory-Direct 400cc Motorcycle for Wholesale Importers

The SM2YM-12 DK400 is SMXH’s flagship 400cc motorcycle platform, engineered for wholesale importers and OEM buyers who need a high-displacement machine at factory-direct pricing. Built around a twin-cylinder 400cc engine at our Tianjin production facility, the DK400 delivers the performance and presence of a premium naked bike while remaining accessible to emerging market price points. For distributors ready to move beyond the 150cc commuter segment, the SM2YM-12 DK400 opens the performance motorcycle category with proven factory support. Read more about the global motorcycle industry growth at IEA Two-Wheeler Transport Analysis. See the DK400 in production: SMXH Factory Tour – 400cc Motorcycle Line.

Core Specifications – SM2YM-12 DK400

The DK400 is built around a 400cc parallel-twin engine with fuel injection, producing a broad powerband suited to both urban riding and open-road performance. This is the engine displacement that defines the modern mid-size naked bike segment globally — enough power for highway confident riding without the weight and cost penalty of a 600cc+ platform.

• Engine: 400cc parallel-twin, liquid-cooled, fuel injection
• Power Output: 38 hp @ 9,500 rpm
• Torque: 32 Nm @ 7,500 rpm
• Transmission: 6-speed manual with assist and slipper clutch
• Front Suspension: 41mm USD (upside-down) fork, 120mm travel
• Rear Suspension: Monoshock, preload adjustable, 110mm travel
• Wheel Size: Front 17-inch / Rear 17-inch (alloy casting)
• Brakes: Front dual disc 298mm with 4-piston caliper / Rear single disc 240mm
• ABS: Dual-channel ABS standard
• Fuel Tank: 14L capacity
• Seat Height: 795mm
• Curb Weight: 178kg
• Top Speed: 155 km/h
• Colors: Matte Gunmetal, Gloss Black, Racing Orange (standard stock)

Why the DK400 Defines the Mid-Size Naked Bike Segment

The naked bike category has become the dominant motorcycle body style globally, outpacing cruisers and sport bikes combined in unit sales across Europe, Asia, and Latin America. The appeal is straightforward: aggressive streetfighter styling, upright ergonomics that are comfortable for daily commuting, and performance that satisfies enthusiast riders without requiring a full racing tuck. The SM2YM-12 DK400 is built to this formula at a price point that puts true 400cc motorcycle performance within reach of emerging market consumers.

The USD (upside-down) front fork is a specification benchmark for mid-size naked bikes. USD forks provide dramatically better rigidity than conventional telescopic forks at the same diameter, improving steering precision and front-end feel under braking — qualities that sophisticated motorcycle buyers specifically look for when comparing models at the dealership. Combined with the 4-piston front caliper and dual-channel ABS, the DK400’s braking system is comparable to 400cc motorcycle competitors selling at significantly higher retail prices.

The assist and slipper clutch is a feature that separates the DK400 from most Chinese-sourced naked bike alternatives. Slipper clutches prevent rear wheel lockup during aggressive engine braking — a genuine performance and safety feature that experienced riders value and beginners benefit from. Including this specification at factory-direct pricing gives your retail network a strong technical argument against competing models.

Target Markets and Distributor Opportunity

The 400cc displacement class occupies a strategically important position in developed and developing motorcycle markets alike. In Europe and Japan, 400cc motorcycles historically sat at the gateway between learner-legal and full-license categories, creating a permanent demand base. In Southeast Asia — Thailand, Indonesia, Vietnam — the 400cc class is the performance aspirational purchase for riders who began on 150cc commuters and are ready to upgrade. In Latin America, the DK400’s styling and specification place it above the mass-market segment while remaining below import-duty thresholds that make larger-displacement bikes prohibitively expensive.

Importers who have introduced the SM2YM-12 DK400 into their markets report retail price positioning between USD $4,500–$6,500 depending on local market conditions, delivering strong gross margin versus factory-direct FOB pricing. At this price band, the DK400 competes directly with Japanese 400cc platforms that source from factories with significantly higher labor costs — giving the SMXH-sourced product a durable price advantage that does not depend on promotional discounting.

Container and Logistics Terms

The SM2YM-12 DK400 ships 48 units per 40-foot container (CKD packing). Larger displacement and heavier frame require more carton volume than the 150cc range; the 48-unit figure reflects optimal packing density without risk of transport damage to the USD forks and body panels. Assembly time is approximately 30 minutes per unit. All fasteners are metric; color-coded assembly instruction booklet included per carton. FOB Tianjin port pricing. T/T or confirmed L/C accepted. Standard lead time 25–40 days from deposit receipt.

OEM and Private-Label Options

The DK400 platform supports full OEM branding. Given the premium positioning of a 400cc motorcycle, OEM brand identity is particularly important for importers who want to build brand equity rather than simply move units. Available customization includes: tank badge (alloy CNC-machined with your logo), seat design and colour, body panel colour (22 standard colours; custom Pantone at 200-unit MOQ), exhaust system (standard 2-into-1 or optional shorty muffler with carbon-fibre heat shield), handlebar style (standard bar or clip-ons at 150-unit MOQ), and instrument cluster face (digital display with customizable boot logo at 300-unit MOQ).

Importers who have run the DK400 under private-label brands in Southeast Asia have used it as their brand’s hero model — the unit that anchors product photography, media coverage, and brand recognition while the 150cc commuter range drives volume. This dual-role strategy (hero model + volume model) is a proven approach for motorcycle brands in growth markets, and the DK400 is engineered to play the hero model role convincingly.

Compliance Documentation

The SM2YM-12 DK400 ships with a full compliance package: CCC certificate, engine conformity certificate, wiring schematics (English, Spanish, and Thai available), ABS system documentation, and Euro 4 equivalent emissions test data. For markets requiring Euro 5 compliance (EU from 2021 onward), we offer a Euro 5 calibration build at a $95 per unit surcharge; minimum order 100 units for Euro 5 configuration. Inquiry response within 2 business days from our export compliance team.

Frequently Asked Questions

What is the minimum order quantity for the SM2YM-12 DK400?
Standard MOQ is 6 units for first-time orders. Full container (48 units) pricing represents the best per-unit cost and is recommended once homologation is confirmed for your market.

Does the DK400 naked bike come with ABS as standard?
Yes. Dual-channel ABS is standard on all DK400 units. There is no ABS-delete variant available — we consider dual-channel ABS a minimum safety standard for a 400cc motorcycle at this performance level.

Can I specify Euro 5 emissions compliance for EU import?
Yes, with a minimum order of 100 units and a $95 per unit surcharge over standard FOB pricing. Certification documentation from our accredited test facility is included.

Explore the full SMXH gas motorcycle range or contact our export team for DK400 factory pricing and OEM proposals. We reply within one business day.

Dealer Training and Technical Support

Selling a 400cc motorcycle requires a more technically capable dealer network than a 150cc commuter. Customers shopping at this price and performance level ask detailed questions about engine tuning, suspension setup, and long-term maintenance costs. SMXH supports its DK400 importers with a comprehensive technical training package: a 120-page bilingual service manual (English and Spanish), a torque specification card sized for workshop walls, a 60-minute video training series covering DK400 routine maintenance procedures (oil and filter change, valve clearance check, fuel injector cleaning, brake bleeding), and a quarterly technical bulletin covering any production updates or service advisories.

For importers who operate a formal dealer training program, we provide a train-the-trainer package: a PowerPoint presentation covering DK400 technical highlights vs. competing naked bike platforms, plus a demonstration unit preparation guide that walks your master technician through preparing a showroom unit to showroom specification. These materials are co-branded with your logo under standard OEM terms.

Quality Control and Inspection Procedures

Every SM2YM-12 DK400 unit passes a 47-point pre-export inspection at our Tianjin facility before packing. The inspection covers: engine cold start and warm idle, throttle response linearity, ABS self-test cycle, brake hydraulic pressure test (both circuits), clutch engagement point, transmission shift quality through all 6 gears, electrical systems check (headlight, indicators, instrument cluster, USB charging port), fuel system pressure test, frame weld visual inspection, and paint quality assessment against a defined colour chip reference standard.

Inspection records for each unit are retained for 5 years at our Tianjin facility and are available to importers on request. For buyers who require third-party pre-shipment inspection (PSI), we work with SGS, Bureau Veritas, and CCIC — all three have inspectors permanently stationed near our facility and can typically schedule inspections within 5 business days of notification. PSI costs are invoiced to the importer separately; we do not apply a handling fee for coordinating third-party inspectors.

Why Source Your 400cc Motorcycle from SMXH

The case for sourcing a 400cc motorcycle from a Chinese motorcycle supplier is straightforward when the supplier has the engineering depth to back it up. SMXH has been producing performance motorcycles at our Tianjin facility since 2008. The DK400 platform went through 3 full development cycles before reaching export readiness — including 50,000km durability testing on a proving ground equivalent, vibration analysis on the parallel-twin engine mounts, and thermal management validation for tropical climate operation (45°C ambient, 80% humidity).

Importers who source the DK400 are not buying a rebranded generic platform. The DK400 specification — USD fork, slipper clutch, dual-channel ABS, liquid-cooled parallel-twin, 38 hp — was assembled as a coherent engineering package, not as a parts-bin exercise. That coherence is what your retail customers experience on a test ride, and it is what drives word-of-mouth recommendation in performance motorcycle communities in your market.

The SM2YM-12 DK400: The Right 400cc Motorcycle for Wholesale Importers

For importers ready to enter the mid-size 400cc motorcycle segment, the SM2YM-12 DK400 is the factory-direct platform that makes the business case straightforward. A twin-cylinder liquid-cooled 400cc motorcycle with USD fork, slipper clutch, and dual-channel ABS — at factory-direct FOB pricing — gives your retail network a 400cc motorcycle that outspecifies competing models at the same price point. Importers who have introduced the DK400 into Southeast Asian and Latin American markets report that the 400cc motorcycle price-performance story resonates strongly with riders upgrading from 150–250cc platforms. The SM2YM-12 DK400 is SMXH’s answer to what a factory-direct 400cc motorcycle can deliver when engineered without compromise. Browse the complete SMXH gas motorcycle range for complementary models.