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Rider Height
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supermoto / default rider 183 cm

Aprilia SX 50 Supermoto vs KTM 390 SMC R ergonomics

Aprilia SX 50 Supermoto and KTM 390 SMC R have modeled posture scores within three points for the 183 cm default rider. Treat this as a planning estimate; posture preference, data confidence, and a real test sit still matter.

Modeled fit comparison

Aprilia SX 50 Supermoto

Modeled scoreProvisional
95Comfortable

All contacts reached

KTM 390 SMC R

Modeled scoreProvisional
95Comfortable

All contacts reached

The modeled scores are within three points, so the result does not distinguish a higher-scoring bike. Treat the result as a planning estimate and compare each bike's geometry confidence before a real test sit.

Rider fit: reaching the ground

The Aprilia SX 50 Supermoto lists a 860 mm seat; the KTM 390 SMC R lists 860 mm, within a few millimetres of each other. Seat height is only a first-pass ground-reach input. It does not establish safety or actual foot contact. Seat width, suspension sag, boots, mobility, load, and individual proportions can materially change the result.

Geometry snapshot

Geometry comparison for Aprilia SX 50 Supermoto and KTM 390 SMC R
SpecAprilia SX 50 SupermotoKTM 390 SMC R
Seat height860 mm860 mm
Wheelbase1,400 mm1,453 mm
Wet weight99 kg161 kg
Displacement50 cc399 cc

Posture metrics

Knee angle

Aprilia SX 50 Supermoto
Sport (58.0 deg)
KTM 390 SMC R
Sport (58.1 deg)

Hip angle

Aprilia SX 50 Supermoto
Neutral (95.1 deg)
KTM 390 SMC R
Neutral (94.0 deg)

Elbow angle

Aprilia SX 50 Supermoto
Relaxed (143.3 deg)
KTM 390 SMC R
Relaxed (143.3 deg)

Torso lean

Aprilia SX 50 Supermoto
Neutral (11.3 deg)
KTM 390 SMC R
Neutral (12.0 deg)