adventure / default rider 183 cm
BMW R 1250 GS vs KTM 1390 Super Adventure S Evo ergonomics
BMW R 1250 GS has the higher modeled posture score (100 vs 95) for the 183 cm default rider compared with KTM 1390 Super Adventure S Evo. Treat this as a planning estimate, not a comfort or purchase verdict; compare the source confidence and confirm both bikes in person.
Posture overlay
The default rider's modeled seated posture on each bike, solved from the same geometry as the score panels and overlaid on one ground line so seat height and reach differences are visible at a glance.
Modeled fit comparison
BMW R 1250 GS
All contacts reached
KTM 1390 Super Adventure S Evo
All contacts reached
BMW R 1250 GS scores higher for the 183 cm default rider in this model. 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 BMW R 1250 GS lists a 850 mm seat; the KTM 1390 Super Adventure S Evo lists 847 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
| Spec | BMW R 1250 GS | KTM 1390 Super Adventure S Evo |
|---|---|---|
| Seat height | 850 mm | 847 mm |
| Wheelbase | 1,514 mm | 1,558 mm |
| Wet weight | 249 kg | 245 kg |
| Displacement | 1,254 cc | 1,350 cc |
Posture metrics
Knee angle
- BMW R 1250 GS
- Neutral (93.1 deg)
- KTM 1390 Super Adventure S Evo
- Sport (65.7 deg)
Hip angle
- BMW R 1250 GS
- Neutral (112.0 deg)
- KTM 1390 Super Adventure S Evo
- Neutral (99.6 deg)
Elbow angle
- BMW R 1250 GS
- Relaxed (143.3 deg)
- KTM 1390 Super Adventure S Evo
- Relaxed (143.3 deg)
Torso lean
- BMW R 1250 GS
- Neutral (18.0 deg)
- KTM 1390 Super Adventure S Evo
- Neutral (10.7 deg)
Fit by rider height
Modeled ground contact by rider height, in 5 bands from 5'2" to 6'4" (158-193 cm).
| Rider height | BMW R 1250 GS | KTM 1390 Super Adventure S Evo |
|---|---|---|
| 158 cm / 5'2" | Tiptoe only | Tiptoe only |
| 167 cm / 5'6" | Tiptoe only | Tiptoe only |
| 176 cm / 5'9" | Balls of feet | Balls of feet |
| 184 cm / 6'0" | Both feet flat | Both feet flat |
| 193 cm / 6'4" | Both feet flat | Both feet flat |
Modeled from each bike's seat height and a typical inseam-to-height ratio only — not a flat-footing guarantee. Real ground contact still depends on seat shape, suspension sag, footwear, and your own proportions. Confirm on the motorcycle.
Verdict
BMW R 1250 GS and KTM 1390 Super Adventure S Evo are both adventure bikes, so the practical question is which of their real differences you'd actually feel. The modeled knee angle differs by 27° between the two, with BMW R 1250 GS opening the knee further — a more stretched-out leg position than KTM 1390 Super Adventure S Evo's. Torso lean differs by 7° in this model: BMW R 1250 GS leans the rider further forward than the more upright KTM 1390 Super Adventure S Evo. KTM 1390 Super Adventure S Evo runs a 44 mm longer wheelbase than BMW R 1250 GS, which typically trades some low-speed agility for extra stability at speed. Taken together, the modeled posture score favors the BMW R 1250 GS by 5 points for the 183 cm default rider, though score gaps this size can flip for a taller or shorter build. Treat every figure here as a planning estimate: seat width, suspension sag, footwear, and your own proportions can shift the real feel more than a few millimetres or degrees on paper. Load your height and inseam into the simulator, then sit on both before you decide.
Kit out either bike
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