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Rider Height
<- Comparison guides

motocross / default rider 183 cm

Beta Motor RX 300 vs Yamaha YZ125 ergonomics

Beta Motor RX 300 and Yamaha YZ125 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.

Fit verdict

Beta Motor RX 300

95Comfortable

All contacts reached

Yamaha YZ125

95Comfortable

All contacts reached

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

Geometry snapshot

Geometry comparison for Beta Motor RX 300 and Yamaha YZ125
SpecBeta Motor RX 300Yamaha YZ125
Seat height940 mm935 mm
Wheelbase1,488 mm1,450 mm
Wet weight--
Displacement293 cc123 cc

Posture metrics

Knee angle

Beta Motor RX 300
Sport (58.1 deg)
Yamaha YZ125
Sport (58.1 deg)

Hip angle

Beta Motor RX 300
Neutral (93.2 deg)
Yamaha YZ125
Neutral (94.0 deg)

Elbow angle

Beta Motor RX 300
Relaxed (143.3 deg)
Yamaha YZ125
Relaxed (143.3 deg)

Torso lean

Beta Motor RX 300
Neutral (12.6 deg)
Yamaha YZ125
Neutral (12.0 deg)