The SM2DM-53 K50 is a complete professional wholesale bike package: 1500W motor, 12-tube controller, 10-inch aluminum wheels with Jianyu 300-10 tires, dual disc brakes, and a factory-included tail box — all at $1,400 wholesale. For fleet operators evaluating electric motorcycles for sale who need a delivery-ready vehicle without additional accessory procurement, the K50 delivers immediate operational capability out of the box.

Wholesale Bike Value Proposition: K50’s Complete Package at $1,400

The K50’s defining commercial advantage is the factory-included tail box. In the wholesale bikes market, tail boxes are typically sold as accessories at $30–80 per unit retail. The K50 includes a tail box valued at 110 RMB (approximately $15 factory cost) as standard — not as an afterthought, but as a designed-in feature reflecting the K50’s intended use as a delivery and cargo vehicle.

For fleet operators ordering 20–50 units, the tail box inclusion eliminates: a separate accessory purchase order, individual installation for each unit, and retail margin on the accessory. At fleet scale, this creates meaningful procurement simplification that experienced fleet buyers recognize and value.

SMXH Electric Mobility — Factory & Product Video

SM2DM-53 K50 Technical Specifications

1500W/30H Motor with 12-Tube Controller: Performance Architecture

The K50 uses a 1500W, 30H motor paired with a 12-tube controller — a performance architecture optimized for sustained commercial use. The 30H winding provides excellent torque delivery across the full RPM range, and the 12-tube controller (versus standard 6–9 tube alternatives) provides lower per-tube thermal loading, reducing heat accumulation during continuous operation.

For delivery operators running the K50 through 8–10 hour duty cycles in warm Latin American climates, this thermal resilience is the difference between reliable all-day operation and performance degradation in afternoon heat — a real-world performance difference that fleet buyers notice immediately in deployment.

The IEA’s analysis of commercial EV adoption specifically identifies thermal performance in tropical climates as a key reliability factor for commercial two-wheel EV deployment — an area where the K50’s 12-tube controller architecture provides genuine advantage.

Electric Motorcycle for Sale: K50 Fleet Deployment Economics

At $1,400 wholesale (complete with tail box), the K50 supports strong fleet economics for delivery operators:

• Petrol replacement savings: $2–4 per day per unit
• Annual savings per unit: $730–1,460
• Payback period vs. petrol equivalent: 8–18 months
• Fleet of 10 units annual savings: $7,300–14,600

At 10-unit fleet scale, annual fuel savings alone pay for an additional K50 unit every 12–18 months — effectively generating fleet growth from operating savings.

Packaging and Wholesale Distribution

K50 ships in 1700×520×860mm packaging (front wheel off) with tail box packaged inside main box. 40–45 units per 20GP. Full documentation. View full range: electric motorcycle catalog.

FAQ

What battery specification does the K50 use at 72V?
The K50 accommodates both 72V lead-acid and 72V lithium batteries. Lead-acid options: 72V32Ah and 72V40Ah. Lithium options available in 72V configurations. Please specify at order placement. Lithium is recommended for commercial fleet use due to faster charging and longer cycle life.

Is the tail box included with every K50 wholesale bike order?
Yes. The tail box (110 RMB factory value) is standard on all K50 units. The assembly includes the tail box mounting bracket factory-installed. Buyers cannot exclude the tail box for a price reduction — it is integral to the K50’s product specification.

What is the 10-inch aluminum wheel advantage vs. iron rim for commercial electric motorcycle for sale?
Aluminum wheels are lighter (reducing unsprung mass and improving handling response), dissipate brake heat more effectively, and resist corrosion in humid environments. For commercial operators in tropical Latin American markets, aluminum wheels reduce long-term maintenance costs and extend wheel service life vs. iron alternatives.

Can the K50 operate in India under SKD assembly as an electric motorcycle for sale?
SKD assembly kits for the K50 can be arranged for markets where SKD import provides duty advantages. The K50’s specifications are compatible with local assembly in markets with established EV assembly programs.

How does the K50’s 12-tube controller improve fleet performance vs. standard controllers?
In sustained commercial use at tropical temperatures (30–40°C ambient), 12-tube controllers typically maintain full performance output 2–3 hours longer per day than 6-tube alternatives before thermal throttling occurs. For delivery operations running full-day shifts, this translates to approximately 10–15% more productive delivery hours per charge cycle.