standard / default rider 183 cm
Suzuki GSX750 Inazuma vs Yamaha SR400 ergonomics
Suzuki GSX750 Inazuma and Yamaha SR400 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.
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
Suzuki GSX750 Inazuma
All contacts reached
Yamaha SR400
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 Suzuki GSX750 Inazuma lists a 785 mm seat; the Yamaha SR400 lists 785 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 | Suzuki GSX750 Inazuma | Yamaha SR400 |
|---|---|---|
| Seat height | 785 mm | 785 mm |
| Wheelbase | 1,470 mm | 1,410 mm |
| Wet weight | - | 174 kg |
| Displacement | 750 cc | 399 cc |
Posture metrics
Knee angle
- Suzuki GSX750 Inazuma
- Sport (58.1 deg)
- Yamaha SR400
- Sport (58.0 deg)
Hip angle
- Suzuki GSX750 Inazuma
- Neutral (93.6 deg)
- Yamaha SR400
- Neutral (94.8 deg)
Elbow angle
- Suzuki GSX750 Inazuma
- Relaxed (143.3 deg)
- Yamaha SR400
- Relaxed (143.3 deg)
Torso lean
- Suzuki GSX750 Inazuma
- Neutral (12.3 deg)
- Yamaha SR400
- Neutral (11.5 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 | Suzuki GSX750 Inazuma | Yamaha SR400 |
|---|---|---|
| 158 cm / 5'2" | Balls of feet | Balls of feet |
| 167 cm / 5'6" | Balls of feet | Balls of feet |
| 176 cm / 5'9" | Both feet flat | Both feet flat |
| 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
Suzuki GSX750 Inazuma and Yamaha SR400 are both standard bikes, so the practical question is which of their real differences you'd actually feel. Suzuki GSX750 Inazuma runs a 60 mm longer wheelbase than Yamaha SR400, which typically trades some low-speed agility for extra stability at speed. None of that adds up to a clear overall winner in the modeled posture score, so the individual differences above are the more useful comparison than the headline number. 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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