ENGINE TYPE
4 Cylinder 16v DOHC
DISPLACEMENT
421
BORE X STROKE
57.0*41.2mm
COMPRESSION RATION
12.6:1
RATED OUTPUT
57kW (77.6 Hp) @ 14,000rpm
MAX. TORQUE
39Nm @ 13,000rpm
LUBRICATION
Wet Sump
FUEL SUPPL
Electronic Fuel Injection
EXHAUST SYSTEM
Euro 5+ Compliant 4-1
CERTIFICATION
Euro 5
ELECTRICAL SYSTEM
12v
CLUTCH
Multiplate Wet Slipper Clutch
GEARBOX
6 Speed
FINAL DRIVE
Chain
IGNITION
ECU Bosch MSE9.0
COOLING SYSTEM
Liquid Cooled
BATTERY
12V 8Ah
STARTING
Electric
ENGINE OIL
10w40 semi-synthetic
FRONT SUSPENSION
Marzocchi adjustable USD Forks
FRONT BRAKE
Dual Brembo Discs 300mm with Bosch Dual ChannelABS
REAR SUSPENSION
Marzocchi Adjustable Mono-shock
REAR BRAKE
Brembo Disc 240mm with Bosch Dual Channel ABS
FRONT RIM TYPE
multi spoke cast alloy
REAR RIM TYPE
multi spoke cast alloy
REAR RIM DIMENSION
17
FRONT TYRE
120/70-17
REAR TYRE
160/60-17
HEADLIGHT LAMP
LED
TAILLIGHT LAMP
LED
LENGTH
2020mm
WIDTH
755mm
HEIGHT
1130mm
GROUND CLEARANCE
150mm
UNLADEN WEIGHT
185kgs (Wet)
USABABLE TANK VOLUME
16.5L
WHEELBASE
1385mm
SEAT HEIGHT
795mm
POWERFUL 16V DOHC ENGINE
The SRK 421 RR is powered by a screaming 421cc inline 4-cylinder engine that is entirely designed by QJMOTOR. It has a DOHC 16-valve over square architecture thanks to a bore of 57 mm and a stroke of 41.2 mm, it delivers an impressive power output of 77 Bhp at 14,000rpm and a maximum torque of 39 Nm offering exceptional performance from such a small capacity multi cylinder engine.
BREMBO BRAKES and BOSCH ABS
The front brakes feature Brembo 4 piston radial calipers paired with dual 300mm discs (with Bosch Dual channel ABS), delivering exceptional stopping power. At the rear, a single Brembo 2 piston caliper and a 240mm disc (with Bosch Dual Channel ABS) ensure progressive and safe braking
LARGE FUEL TANK
The QJMOTOR SRK 421 RR has a sculpted, curvaceous 16L tank, this ensures you can ride harder for longer.
SPORTY YET COMFORTABLE
The SRK 421 RR has style and comfort combined. The riders seat is sculpted and has a none slip cover, with a narrow step over and a seat height of only 808mm the machine is easy to maneuver.
FULL LED LIGHTING
The SRK 421 RR has stylish LED headlights, tail lights and indicators as standard. The LED lighting system guarantees exceptional visibility and increased safety day & night.
FULL COLOUR 5" TFT DASHBOARD
The dashboard is equipped with a modern and intuitive Full Colour 5-inch TFT screen offering a wealth of essential information.
MARZOCCHI SUSPENSION
The QJMOTOR SRK 421 RR has adjustable Marzocchi USD front forks and a rear mono-shock that gives extreme poise and control on road or track.
RIDER AIDS
The SRK 421 RR is loaded with technology usually only found on bigger capacity machines.
Switchable Rider Modes, TCS Traction Control, TPMS Tyre Pressure and Temperature Monitoring are all fitted as standard.
STYLISH DETAILS
The SRK 421 RR abounds with style - Diamond cut lightweight multi spoke alloy wheels, bold yet simple colours, aggressive angular bodywork, with aerodynamic winglets, LED lighting provides a distinctive visual signature, mass centralised 4-1 sports exhaust.
C-CREATIVE DESIGN
The SRK 421 RR ushers in a new era of QJMOTOR's signature design, inspired by the aesthetics of "mecha" - sharp lines, an aggressive silhouette and robotic-looking optics. It was created in collaboration with the Italian studio C-CREATIVE and renowned motorcycle designer Adrian Morton. The unique, expressive fairings emphasize a strong brand identity that will guide the development of future QJMOTOR motorcycles. The model features clean lines and minimalist graphics, embodying the company's new philosophy of innovation, technology, and elegance. Every element is meticulously crafted and seamlessly integrates into the overall concept.
Explore this vehicle in more detail with our handy video guide. We’ll talk you through its main features, show you some of the highlights of the bike and explain why it could be the right fit for you.
The information in this video was correct at the time of filming. We have made every effort to ensure this video is an accurate representation of the bike above. However, please contact the branch for full details.
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