Skip to content
Rider Height
<- Comparison guides

sport / default rider 183 cm

Aprilia RS 125 vs Aprilia RS4 125 ergonomics

Aprilia RS 125 and Aprilia RS4 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

Aprilia RS 125

90Comfortable

All contacts reached

Aprilia RS4 125

90Comfortable

All contacts reached

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

Geometry snapshot

Geometry comparison for Aprilia RS 125 and Aprilia RS4 125
SpecAprilia RS 125Aprilia RS4 125
Seat height820 mm820 mm
Wheelbase1,350 mm1,353 mm
Wet weight144 kg144 kg
Displacement124 cc124 cc

Posture metrics

Knee angle

Aprilia RS 125
Sport (60.7 deg)
Aprilia RS4 125
Sport (60.7 deg)

Hip angle

Aprilia RS 125
Neutral (99.6 deg)
Aprilia RS4 125
Neutral (99.6 deg)

Elbow angle

Aprilia RS 125
Relaxed (143.3 deg)
Aprilia RS4 125
Relaxed (143.3 deg)

Torso lean

Aprilia RS 125
Forward (25.2 deg)
Aprilia RS4 125
Forward (25.2 deg)