standard / default rider 183 cm
Royal Enfield Guerrilla 450 vs Yamaha XS400 ergonomics
Royal Enfield Guerrilla 450 and Yamaha XS400 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
Royal Enfield Guerrilla 450
All contacts reached
Yamaha XS400
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 Royal Enfield Guerrilla 450 lists a 780 mm seat; the Yamaha XS400 lists 780 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 | Royal Enfield Guerrilla 450 | Yamaha XS400 |
|---|---|---|
| Seat height | 780 mm | 780 mm |
| Wheelbase | 1,440 mm | 1,364 mm |
| Wet weight | 185 kg | 182 kg |
| Displacement | 452 cc | 391 cc |
Posture metrics
Knee angle
- Royal Enfield Guerrilla 450
- Sport (58.0 deg)
- Yamaha XS400
- Sport (57.9 deg)
Hip angle
- Royal Enfield Guerrilla 450
- Neutral (94.3 deg)
- Yamaha XS400
- Neutral (95.8 deg)
Elbow angle
- Royal Enfield Guerrilla 450
- Relaxed (143.3 deg)
- Yamaha XS400
- Relaxed (143.3 deg)
Torso lean
- Royal Enfield Guerrilla 450
- Neutral (11.9 deg)
- Yamaha XS400
- Neutral (10.8 deg)