QJMOTOR SRK 421 RR Manual

The QJMOTOR SRK 421 RR has officially arrived to shake up the midweight supersport category, blending aerodynamic engineering with highspeed styling. The SRK 421 RR fuses a screaming fourcylinder soundtrack with precision control to deliver an unprecedented thrill for those chasing the ultimate ride. The heart of the SRK 421 RR is a 421cc inline fourcylinder, 16v DOHC engine producing 77.6ps (57kW) at 14,000rpm. Designed for linear and smooth power delivery, the engine is beginnerfriendly while offering highrev thrills for trackinspired performance. A peak torque of 39Nm is delivered at 13,000rpm, but still produces enough lowend urgency to ensure responsive delivery on city streets.The engine also features DLCtreated valve tappets, an electroplated ceramic cylinder and a forged alloy steel camshaft. Highend components are also used from famed Japanese companies, including FCC paperbased clutch plates, NTN bearings, RIK piston rings, and Daido crankshaft bearings. The SRK 421 RR has been crafted by the designers of some of the most acclaimed motorcycles and features original mechainspired styling that creates a futuristic presence. Its aerodynamic bodywork includes bold lines, geometric cuts, and a hollowed tail section that channels airflow to reduce drag. The aggressive front face is equipped with a Ram Air intake to ensure efficient combustion and enhanced power output at speed.Other distinctive styling touches include a threedimensional floating taillight and a raceready rider triangle created by lowered handlebars and raised footpegs. The 16litre fuel tank is sculpted for ergonomic support, while the 808mm seat height ensures accessibility for a wide range of riders.he steelaluminium composite braided frame provides highstrength rigidity and has an evenlybalanced weight distribution for handling agility. This is paired with fully adjustable upsidedown telescopic forks and a rear multilink shock absorber from Marzocchi. Premium stopping power is provided by Brembo radial fourpiston calipers acting on 300mm dual front discs and a twopiston caliper operating a 240mm single rear disc, supported by a dualchannel ABS system.The rider interface is headlined by a 7inch TFT display featuring a multilanguage menu, smartphone connectivity, and navigation mirroring. Riders can toggle between Normal and Sport modes to adapt throttle response and the level of intervention from the Traction Control System (TCS) and ABS. Sport is