sport-touring / default rider 183 cm
BMW R 1100 S vs Buell S3T Thunderbolt ergonomics
BMW R 1100 S and Buell S3T Thunderbolt 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
BMW R 1100 S
All contacts reached
Buell S3T Thunderbolt
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 BMW R 1100 S lists a 800 mm seat; the Buell S3T Thunderbolt lists 800 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 1100 S | Buell S3T Thunderbolt |
|---|---|---|
| Seat height | 800 mm | 800 mm |
| Wheelbase | 1,480 mm | 1,397 mm |
| Wet weight | 229 kg | 233 kg |
| Displacement | 1,085 cc | 1,203 cc |
Posture metrics
Knee angle
- BMW R 1100 S
- Sport (58.0 deg)
- Buell S3T Thunderbolt
- Sport (57.7 deg)
Hip angle
- BMW R 1100 S
- Neutral (89.9 deg)
- Buell S3T Thunderbolt
- Neutral (91.7 deg)
Elbow angle
- BMW R 1100 S
- Relaxed (143.3 deg)
- Buell S3T Thunderbolt
- Relaxed (143.3 deg)
Torso lean
- BMW R 1100 S
- Neutral (13.5 deg)
- Buell S3T Thunderbolt
- Neutral (12.5 deg)