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Rider Height
<- Comparison guides

scooter / default rider 183 cm

Vespa ET4 150 vs Yamaha XMAX 400 ergonomics

Vespa ET4 150 and Yamaha XMAX 400 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.

Fit verdict

Vespa ET4 150

95Comfortable

All contacts reached

Yamaha XMAX 400

95Comfortable

All contacts reached

The two bikes are close enough that posture preference matters more than the overall score.

Geometry snapshot

Geometry comparison for Vespa ET4 150 and Yamaha XMAX 400
SpecVespa ET4 150Yamaha XMAX 400
Seat height805 mm800 mm
Wheelbase1,280 mm1,567 mm
Wet weight-210 kg
Displacement150 cc395 cc

Posture metrics

Knee angle

Vespa ET4 150
Sport (57.7 deg)
Yamaha XMAX 400
Sport (58.3 deg)

Hip angle

Vespa ET4 150
Neutral (97.7 deg)
Yamaha XMAX 400
Neutral (91.5 deg)

Elbow angle

Vespa ET4 150
Relaxed (143.3 deg)
Yamaha XMAX 400
Relaxed (143.3 deg)

Torso lean

Vespa ET4 150
Neutral (9.5 deg)
Yamaha XMAX 400
Neutral (13.7 deg)