QJ Motor SRK 921 RR vs Yamaha YZF-R9
Side-by-side comparison for used motorcycle buyers
QJ Motor SRK 921 RR vs Yamaha YZF-R9. QJ Motor SRK 921 RR: 120.5bhp @ 11,300rpm hp, 230.6kg fully fuelled (508 lbs) weight, top speed 157mph. Yamaha YZF-R9: ~119 hp hp, ~414 lbs (188 kg) weight, top speed ~150 mph (est.), Motoryk rating 8.5/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
QJ Motor SRK 921 RR
Yamaha YZF-R9
Horsepower (hp)
120.5 hp
119 hp
Torque (Nm)
63.6 Nm
68 Nm
Top Speed (km/h)
157 km/h
150 km/h
Weight (kg) — lower is better
230.6 kg
414 kg
Type
Sportbike
Sportbike
Horsepower
120.5bhp @ 11,300rpm
~119 hp
Torque
63.6lb-ft @ 8900rpm
~68 lb-ft
Top Speed
157mph
~150 mph (est.)
Weight
230.6kg fully fuelled (508 lbs)
~414 lbs (188 kg)
Fuel
—
—
Fairing
Yes
Yes
Individual Reviews
Yamaha YZF-R9
8.5/10
"The sportbike sweet spot that R6 fans actually wanted sooner."
Pros
+Triple torque, usable everywhere
+Modern electronics suite standard
+Lighter than R1 alternatives
Cons
−Aggressive ergonomics fatigue quickly
−Expensive fairing replacement costs
−Early fueling software issues
Top 10 Accessories
Picks that work on either bike.
