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Rider Height
<- Comparison guides

dual-sport / default rider 183 cm

BMW G 650 GS Sertao vs Yamaha XT125R ergonomics

BMW G 650 GS Sertao has the higher modeled posture score (95 vs 92) for the 183 cm default rider compared with Yamaha XT125R. Treat this as a planning estimate, not a comfort or purchase verdict; compare the source confidence and confirm both bikes in person.

Modeled fit comparison

BMW G 650 GS Sertao

Modeled scoreProvisional
95Comfortable

All contacts reached

Yamaha XT125R

Modeled scoreProvisional
92Comfortable

All contacts reached

BMW G 650 GS Sertao scores higher for the 183 cm default rider in this model. 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 G 650 GS Sertao lists a 861 mm seat; the Yamaha XT125R 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 G 650 GS Sertao and Yamaha XT125R
SpecBMW G 650 GS SertaoYamaha XT125R
Seat height861 mm860 mm
Wheelbase1,484 mm1,335 mm
Wet weight193 kg-
Displacement652 cc124 cc

Posture metrics

Knee angle

BMW G 650 GS Sertao
Sport (67.5 deg)
Yamaha XT125R
Sport (67.3 deg)

Hip angle

BMW G 650 GS Sertao
Neutral (107.1 deg)
Yamaha XT125R
Neutral (110.2 deg)

Elbow angle

BMW G 650 GS Sertao
Relaxed (143.3 deg)
Yamaha XT125R
Relaxed (143.3 deg)

Torso lean

BMW G 650 GS Sertao
Neutral (7.0 deg)
Yamaha XT125R
Upright (4.7 deg)