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Rider Height
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naked / default rider 183 cm

Triumph Speed Four vs Yamaha MT-125 ergonomics

Triumph Speed Four and Yamaha MT-125 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.

Fit verdict

Triumph Speed Four

95Comfortable

All contacts reached

Yamaha MT-125

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 Triumph Speed Four has a 810 mm seat; the Yamaha MT-125 sits at 810 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 81 cm for the Triumph Speed Four and 81 cm for the Yamaha MT-125.

Geometry snapshot

Geometry comparison for Triumph Speed Four and Yamaha MT-125
SpecTriumph Speed FourYamaha MT-125
Seat height810 mm810 mm
Wheelbase1,394 mm1,325 mm
Wet weight-142 kg
Displacement599 cc124 cc

Posture metrics

Knee angle

Triumph Speed Four
Sport (61.5 deg)
Yamaha MT-125
Sport (61.3 deg)

Hip angle

Triumph Speed Four
Neutral (92.8 deg)
Yamaha MT-125
Neutral (94.6 deg)

Elbow angle

Triumph Speed Four
Relaxed (143.3 deg)
Yamaha MT-125
Relaxed (143.3 deg)

Torso lean

Triumph Speed Four
Neutral (12.0 deg)
Yamaha MT-125
Neutral (10.9 deg)