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Rider Height
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dual-sport / default rider 183 cm

BMW R 80 G/S vs Yamaha XT550 ergonomics

BMW R 80 G/S and Yamaha XT550 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 R 80 G/S

Modeled scoreProvisional
95Comfortable

All contacts reached

Yamaha XT550

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 R 80 G/S lists a 860 mm seat; the Yamaha XT550 lists 860 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 R 80 G/S and Yamaha XT550
SpecBMW R 80 G/SYamaha XT550
Seat height860 mm860 mm
Wheelbase1,465 mm1,400 mm
Wet weight186 kg145 kg
Displacement798 cc558 cc

Posture metrics

Knee angle

BMW R 80 G/S
Sport (67.5 deg)
Yamaha XT550
Sport (67.4 deg)

Hip angle

BMW R 80 G/S
Neutral (107.5 deg)
Yamaha XT550
Neutral (108.7 deg)

Elbow angle

BMW R 80 G/S
Relaxed (143.3 deg)
Yamaha XT550
Relaxed (143.3 deg)

Torso lean

BMW R 80 G/S
Neutral (6.7 deg)
Yamaha XT550
Neutral (5.8 deg)