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Rider Height
<- Comparison guides

naked / default rider 183 cm

BMW F 900 R vs QJ Motor SRK 800 ergonomics

BMW F 900 R and QJ Motor SRK 800 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

BMW F 900 R

Modeled scoreProvisional
95Comfortable

All contacts reached

QJ Motor SRK 800

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 BMW F 900 R lists a 815 mm seat; the QJ Motor SRK 800 lists 815 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 BMW F 900 R and QJ Motor SRK 800
SpecBMW F 900 RQJ Motor SRK 800
Seat height815 mm815 mm
Wheelbase1,518 mm1,450 mm
Wet weight211 kg207 kg
Displacement895 cc778 cc

Posture metrics

Knee angle

BMW F 900 R
Sport (62.0 deg)
QJ Motor SRK 800
Sport (61.7 deg)

Hip angle

BMW F 900 R
Neutral (89.9 deg)
QJ Motor SRK 800
Neutral (91.5 deg)

Elbow angle

BMW F 900 R
Relaxed (143.3 deg)
QJ Motor SRK 800
Relaxed (143.3 deg)

Torso lean

BMW F 900 R
Neutral (14.0 deg)
QJ Motor SRK 800
Neutral (12.9 deg)