QJ Motor SRK 400 (MY2023) — Naked Bike
QJ Motor Press

2023 · Naked Bike · Buyer's Guide

SRK 400 (MY2023)

Stable, Sharp, Surprisingly Affordable

The Machine's Character

The SRK 400 is QJ Motor trying to prove it can build a small naked bike that feels finished on the road, not just on the spec sheet. The engine is a 400 cc liquid-cooled parallel twin with a 360-degree crank. It makes 41 hp at 9,000 rpm and 27 lb-ft at 7,500 rpm, and it sits in a steel trellis frame with an upside-down fork. The styling is sharp and aggressive, and the fit and finish are better than many riders expect from a Chinese-built bike. ABS, an LED headlight and a USB port come standard. Beyond that, the equipment stays deliberately simple.

On the road it feels bigger than its displacement. The chassis is planted and supportive, it stays composed at highway speed, and the front end tells you clearly what is going on. That calm comes with weight. At 410 lb (186 kg) wet it is heavy for a 400, and you feel it in quick direction changes. It favors smoothness over outright sharpness. Running costs are low, maintenance is simple, and 49 mpg gets good range from the 3.6 gal (13.5 L) tank. Keep an eye on the drive chain. For a rider who wants a well-made, good-looking twin for town and back roads, it makes sense.

Hard Numbers

Spec sheets don't ride bikes, but they set the baseline.

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Key specifications
Power 41 hp (30 kW) @ 9,000 rpm
Torque 27 lb-ft (37 Nm) @ 7,500 rpm
Displacement 400 cc
Engine Parallel twin
Cooling Liquid-cooled
Gearbox 6-speed
Final drive Chain
Fork Upside-down (USD)
Front brake 260 mm
Front tire 110/70-17
Rear tire 150/60-17
Seat height 30.9 in (785 mm)
Wet weight 410 lb (186 kg)
Fuel capacity 3.6 gal (13.5 L)
Top speed 106 mph (170 km/h)
Fuel economy 49 mpg (US)

Equipment check

Chassis

  • Rear Suspension Adjustable Standard

Connectivity

  • USB Charging Port Standard

Lighting

  • LED Headlight Standard

Safety

  • ABS Standard
A winding asphalt road descending through the Appalachian Mountains, likely the famous Tail of the Dragon section in Tennessee and North Carolina. Multiple technical right-hand and left-hand curves are visible in this aerial perspective, surrounded by deciduous forest in spring foliage. Clear sunny conditions, well-maintained asphalt with yellow center lines marking the curves.
Mark Stebnicki / Pexels

Known issues

  • Chain noise

    drivetrain rare

    Some owners report unusual noise from the drive chain, potentially indicating early wear or alignment issues.

The Numbers Compared

Compare the technical specifications of the QJ Motor SRK 400 with other bikes in its class.

Head-to-head: QJ Motor SRK 400 vs. its rivals

Alternatives to the QJ Motor SRK 400

If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.

Any price note compares both bikes at the same age — the youngest age both have on the used market — against this QJ Motor SRK 400. “cheaper/pricier” is what that bike costs second-hand, not how worn it is.