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Rider Height
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naked / default rider 183 cm

Kawasaki Z800 vs QJ Motor SRK 921 ergonomics

Kawasaki Z800 and QJ Motor SRK 921 have modeled posture scores within three points for the 183 cm default rider. Treat this as a planning estimate; posture preference, data confidence, and a real test sit still matter.

Modeled fit comparison

Kawasaki Z800

Modeled scoreProvisional
95Comfortable

All contacts reached

QJ Motor SRK 921

Modeled scoreProvisional
95Comfortable

All contacts reached

The modeled scores are within three points, so the result does not distinguish a higher-scoring bike. Treat the result as a planning estimate and compare each bike's geometry confidence before a real test sit.

Rider fit: reaching the ground

The Kawasaki Z800 lists a 834 mm seat; the QJ Motor SRK 921 lists 835 mm, within a few millimetres of each other. Seat height is only a first-pass ground-reach input. It does not establish safety or actual foot contact. Seat width, suspension sag, boots, mobility, load, and individual proportions can materially change the result.

Geometry snapshot

Geometry comparison for Kawasaki Z800 and QJ Motor SRK 921
SpecKawasaki Z800QJ Motor SRK 921
Seat height834 mm835 mm
Wheelbase1,445 mm1,425 mm
Wet weight229 kg218 kg
Displacement806 cc921 cc

Posture metrics

Knee angle

Kawasaki Z800
Sport (61.7 deg)
QJ Motor SRK 921
Sport (61.6 deg)

Hip angle

Kawasaki Z800
Neutral (91.7 deg)
QJ Motor SRK 921
Neutral (92.2 deg)

Elbow angle

Kawasaki Z800
Relaxed (143.3 deg)
QJ Motor SRK 921
Relaxed (143.3 deg)

Torso lean

Kawasaki Z800
Neutral (12.8 deg)
QJ Motor SRK 921
Neutral (12.5 deg)