Skip to content
Rider Height
<- Comparison guides

supermoto / default rider 183 cm

MZ Mastiff 660 vs Yamaha XT 125X ergonomics

MZ Mastiff 660 and Yamaha XT 125X land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.

Fit verdict

MZ Mastiff 660

95Comfortable

All contacts reached

Yamaha XT 125X

95Comfortable

All contacts reached

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

Rider fit: reaching the ground

The MZ Mastiff 660 has a 831 mm seat; the Yamaha XT 125X sits at 831 mm, within a few millimetres of each other. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 83 cm for the MZ Mastiff 660 and 83 cm for the Yamaha XT 125X.

Geometry snapshot

Geometry comparison for MZ Mastiff 660 and Yamaha XT 125X
SpecMZ Mastiff 660Yamaha XT 125X
Seat height831 mm831 mm
Wheelbase1,466 mm1,336 mm
Wet weight167 kg-
Displacement660 cc124 cc

Posture metrics

Knee angle

MZ Mastiff 660
Sport (58.1 deg)
Yamaha XT 125X
Sport (57.8 deg)

Hip angle

MZ Mastiff 660
Neutral (93.6 deg)
Yamaha XT 125X
Neutral (96.5 deg)

Elbow angle

MZ Mastiff 660
Relaxed (143.3 deg)
Yamaha XT 125X
Relaxed (143.3 deg)

Torso lean

MZ Mastiff 660
Neutral (12.3 deg)
Yamaha XT 125X
Neutral (10.3 deg)