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Rider Height
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supermoto / default rider 183 cm

KTM 640 LC4 Supermoto vs KTM 660 SMC ergonomics

KTM 640 LC4 Supermoto and KTM 660 SMC 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

KTM 640 LC4 Supermoto

Modeled scoreProvisional
95Comfortable

All contacts reached

KTM 660 SMC

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 KTM 640 LC4 Supermoto lists a 910 mm seat; the KTM 660 SMC lists 909 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 KTM 640 LC4 Supermoto and KTM 660 SMC
SpecKTM 640 LC4 SupermotoKTM 660 SMC
Seat height910 mm909 mm
Wheelbase1,510 mm1,509 mm
Wet weight159 kg-
Displacement625 cc654 cc

Posture metrics

Knee angle

KTM 640 LC4 Supermoto
Sport (58.2 deg)
KTM 660 SMC
Sport (58.2 deg)

Hip angle

KTM 640 LC4 Supermoto
Neutral (92.6 deg)
KTM 660 SMC
Neutral (92.8 deg)

Elbow angle

KTM 640 LC4 Supermoto
Relaxed (143.3 deg)
KTM 660 SMC
Relaxed (143.3 deg)

Torso lean

KTM 640 LC4 Supermoto
Neutral (12.9 deg)
KTM 660 SMC
Neutral (12.9 deg)