The QJMotor SRK 421 RR pairs a 421 cc inline-four with a manufacturer-listed price of €5,999 in France or £5,299 plus £300 on-the-road charges in the UK. Those country-specific listings make it a lower-priced supersport option to investigate, but they do not prove it is better value than a Kawasaki ZX-4RR or any other rival. The decision depends on local fees, exact equipment and licensing, and ownership support that a buyer should verify before comparing.
What does the SRK 421 RR offer?
QJ Motor Germany lists a 421 cm³ liquid-cooled, 16-valve DOHC inline-four, producing 57.0 kW (77.5 PS) at 14,000 rpm and 39 Nm. QJMOTOR UK describes its output as 57 kW/77 bhp at 14,000 rpm and torque as 39 Nm at 13,000 rpm. These are the manufacturers’ market-page figures; retain each page’s units rather than treating the figures as independent test results. QJ Motor Germany specifications · QJMOTOR UK model listing
The listed transmission is six-speed with chain drive. Across the German, French, and UK market pages, the stated ready-to-ride or wet weight is 185 kg, seat height 795 mm, fuel capacity 16.5 L, and tire sizes 120/70 ZR17 front and 160/60 ZR17 rear. Those dimensions help establish the bike’s basic fit and equipment, but they do not tell you how it feels on the road.
What do the listed prices include?
The available manufacturer prices are specific to their markets and are not directly comparable out-the-door amounts.
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| Market | Published price | What to account for |
|---|---|---|
| France | €5,999 including VAT | Registration certificate and preparation/on-road costs are excluded. QJMOTOR France describes it as a 2026 French-market arrival. QJMOTOR France listing · QJMOTOR France launch announcement |
| United Kingdom | £5,299 plus £300 OTR charges | The UK page says OTR covers registration, road tax, pre-delivery inspection, and dealer delivery; charges may vary geographically. QJMOTOR UK model listing |
For a fair comparison with a rival such as the Kawasaki ZX-4RR, obtain same-country, same-date dealer quotes that include delivery, registration, preparation, and any other mandatory charges. The available figures do not establish a saving against that model. QJMOTOR UK’s phrase “The pound for pound supersport champion” is marketing language, not an independent value assessment. QJMOTOR UK news and positioning
Which features are listed, and may they vary by country?
The market pages describe a substantial equipment package, but their feature lists are not identical. Confirm the specification of the exact bike being offered rather than assuming every advertised feature applies in every country.
Rank #2
- Fitment: QJMOTOR SRK550RS SRK550 RS SRK RKS 550RS
- Material : Aluminum
- Item Type : Foot Rests
- Suspension and brakes: The French page specifies adjustable Marzocchi suspension, radial Brembo front calipers, dual 300 mm front discs, and a 240 mm rear disc. Germany lists fully adjustable suspension and Brembo brakes; the UK page lists adjustable Marzocchi suspension and Brembo brakes.
- Electronic aids: The French page lists ABS, traction control, launch control, and two riding modes. Germany lists ABS and TCS, while the UK page specifies Bosch dual-channel ABS.
- Display and connections: Germany lists a 7-inch colour TFT and USB charging socket. France describes a connected 7-inch TFT with Bluetooth/navigation and USB-A and USB-C. The UK page’s cited equipment details do not establish those display or connectivity features.
For French-market details, see QJMOTOR France’s SRK 421 RR page; for Germany, see QJ Motor Germany’s specifications; and for the UK, see QJMOTOR UK’s model listing.
What should riders verify about licensing?
Licensing claims differ by market. QJMOTOR France describes an A2-restricted version at 47 hp; the UK page lists minimum licence A. These statements do not establish a universal licensing rule or confirm that a specific bike is restricted as required. Check local homologation, the exact variant, and the documents for the bike with the seller and relevant licensing authority before purchase.
Rank #3
- Fitment: For QJMOTOR SRK400
- Material : Aluminum
- Item Type : Foot Rests
How to compare it with a rival
Use a like-for-like checklist rather than judging by headline price or a single engine figure. For the SRK 421 RR, the manufacturer pages provide several specifications; they do not establish a complete comparison with a named rival.
- Get the full local price. Ask for a written quote covering the bike, delivery, registration, preparation, and mandatory charges.
- Match the exact model year and trim. Confirm the equipment fitted to each market version, including suspension, brakes, electronics, display, and connectivity.
- Compare the riding package. Consider power and torque figures alongside weight, seat height, riding position, and an in-person fit or test ride where available.
- Check legal eligibility. Confirm the local homologation and licence restriction for the exact variant, not just the model name.
- Investigate ownership support locally. Ask the dealer for warranty terms, service schedule and costs, parts availability and lead times, and resale support. The cited model pages do not establish these ownership details.
What remains unknown about long-term value?
A low listed price and a detailed equipment sheet are not enough to determine total cost of ownership. The cited manufacturer pages do not establish warranty duration, authorized dealer and parts coverage, service intervals or costs, reliability history, real-world fuel consumption, resale value, or insurance costs. Ask local dealers for written warranty and service information and check whether parts support is practical in your area before treating the price as a complete value verdict.
Rank #4
- For QJMOTOR SRK 600/550 Motorcycle Windshield Screen Shield Windscreens Wind Deflectors Front Glass Increased
- Made of high‑strength polycarbonate material, impact‑resistant and shatter‑proof, effectively blocks strong wind, flying debris and bugs during riding for a more comfortable long‑distance touring experience.
- High‑transparency surface ensures clear vision, will not distort sight, scratch‑resistant coating reduces daily wear and keeps good visibility in various weather conditions.
- Adjustable height & angle design allows you to customize wind deflection according to your riding posture, greatly reduces wind pressure on chest and helmet at high speed.
- Smooth aerodynamic shape optimizes airflow, reduces wind noise while riding; please double‑check your motorcycle model before purchase to confirm fitment.
Replacement tire fitment
The listed front tire size is 120/70 ZR17, with a 160/60 ZR17 rear. These dimensions identify size only; they do not specify a tire brand or model. Before ordering, check the motorcycle’s required load and speed ratings and confirm exact fitment for its wheel and market version.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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