Qj Motor Sf450r vs Aprilia Rs 660
Side-by-side comparison for used motorcycle buyers
Qj Motor Sf450r vs Aprilia Rs 660. Qj Motor Sf450r: 47 hp @ 9,500 rpm — estimated hp, 195 kg (wet/curb weight) — estimated weight, top speed 175 km/h — estimated, Motoryk rating 7.0/10. Aprilia Rs 660: 100 hp @ 10,500 rpm hp, 169 kg (wet/curb weight) weight, top speed 235 km/h, Motoryk rating 8.5/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Qj Motor Sf450r
Aprilia Rs 660
Horsepower (hp)
47 hp
100 hp
Torque (Nm)
43 Nm
67 Nm
Top Speed (km/h)
175 km/h
235 km/h
Weight (kg) — lower is better
195 kg
169 kg
Type
Supersport
Supersport
Horsepower
47 hp @ 9,500 rpm — estimated
100 hp @ 10,500 rpm
Torque
43 Nm @ 7,500 rpm — estimated
67 Nm @ 8,500 rpm
Top Speed
175 km/h — estimated
235 km/h
Weight
195 kg (wet/curb weight) — estimated
169 kg (wet/curb weight)
Fuel
4.5 L/100km (approx. 22 km/L) — estimated
5.5 L/100km (approx. 18 km/L typical real-world average)
Fairing
Yes
Yes
Individual Reviews
Qj Motor Sf450r
7.0/10
"Solid budget sportbike if you accept the reliability uncertainty."
Pros
+Punchy parallel-twin delivery
+Solid chassis and suspension
+Aggressive looks, reasonable ergonomics
Cons
−Limited long-term reliability data
−Parts sourcing can be slow
−Resale value unproven
Aprilia Rs 660
8.5/10
"A genuinely special middleweight — buy it, but buy it carefully."
Pros
+Thrilling mid-range power delivery
+Exceptional chassis and handling
+Premium electronics for class
Cons
−Early ECU software problems
−Fragile fairings, expensive replacements
−Patchy dealer network support
Top 10 Accessories
Picks that work on either bike.
