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Rider Height
<- Comparison guides

sport / default rider 183 cm

KTM RC 125 vs KTM RC 390 ergonomics

KTM RC 125 and KTM RC 390 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.

Fit verdict

KTM RC 125

90Comfortable

All contacts reached

KTM RC 390

90Comfortable

All contacts reached

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

Rider fit: reaching the ground

The KTM RC 125 has a 824 mm seat; the KTM RC 390 sits at 824 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 82 cm for the KTM RC 125 and 82 cm for the KTM RC 390.

Geometry snapshot

Geometry comparison for KTM RC 125 and KTM RC 390
SpecKTM RC 125KTM RC 390
Seat height824 mm824 mm
Wheelbase1,343 mm1,355 mm
Wet weight156 kg-
Displacement125 cc373 cc

Posture metrics

Knee angle

KTM RC 125
Sport (60.7 deg)
KTM RC 390
Sport (60.7 deg)

Hip angle

KTM RC 125
Neutral (99.7 deg)
KTM RC 390
Neutral (99.6 deg)

Elbow angle

KTM RC 125
Relaxed (143.3 deg)
KTM RC 390
Relaxed (143.3 deg)

Torso lean

KTM RC 125
Forward (25.1 deg)
KTM RC 390
Forward (25.2 deg)