supermoto / default rider 183 cm
HM Moto Derapage vs KTM 640 LC4 Supermoto ergonomics
HM Moto Derapage and KTM 640 LC4 Supermoto land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
HM Moto Derapage
95Comfortable
All contacts reached
KTM 640 LC4 Supermoto
95Comfortable
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The HM Moto Derapage has a 908 mm seat; the KTM 640 LC4 Supermoto sits at 910 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 91 cm for the HM Moto Derapage and 91 cm for the KTM 640 LC4 Supermoto.
Geometry snapshot
| Spec | HM Moto Derapage | KTM 640 LC4 Supermoto |
|---|---|---|
| Seat height | 908 mm | 910 mm |
| Wheelbase | 1,398 mm | 1,510 mm |
| Wet weight | - | 159 kg |
| Displacement | 50 cc | 625 cc |
Posture metrics
Knee angle
- HM Moto Derapage
- Sport (58.0 deg)
- KTM 640 LC4 Supermoto
- Sport (58.2 deg)
Hip angle
- HM Moto Derapage
- Neutral (95.1 deg)
- KTM 640 LC4 Supermoto
- Neutral (92.6 deg)
Elbow angle
- HM Moto Derapage
- Relaxed (143.3 deg)
- KTM 640 LC4 Supermoto
- Relaxed (143.3 deg)
Torso lean
- HM Moto Derapage
- Neutral (11.3 deg)
- KTM 640 LC4 Supermoto
- Neutral (12.9 deg)