cruiser / default rider 183 cm
Kawasaki Vulcan S vs Suzuki Boulevard C109R ergonomics
Kawasaki Vulcan S has the higher modeled posture score (92 vs 72) for the 183 cm default rider compared with Suzuki Boulevard C109R. Treat this as a planning estimate, not a comfort or purchase verdict; compare the source confidence and confirm both bikes in person.
Modeled fit comparison
Kawasaki Vulcan S
All contacts reached
Suzuki Boulevard C109R
All contacts reached
Kawasaki Vulcan S 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 Kawasaki Vulcan S lists a 705 mm seat; the Suzuki Boulevard C109R lists 706 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 | Kawasaki Vulcan S | Suzuki Boulevard C109R |
|---|---|---|
| Seat height | 705 mm | 706 mm |
| Wheelbase | 1,575 mm | 1,755 mm |
| Wet weight | 229 kg | 380 kg |
| Displacement | 649 cc | 1,783 cc |
Posture metrics
Knee angle
- Kawasaki Vulcan S
- Open (114.3 deg)
- Suzuki Boulevard C109R
- Stretched (131.6 deg)
Hip angle
- Kawasaki Vulcan S
- Sport (79.0 deg)
- Suzuki Boulevard C109R
- Sport (82.4 deg)
Elbow angle
- Kawasaki Vulcan S
- Relaxed (143.3 deg)
- Suzuki Boulevard C109R
- Relaxed (143.3 deg)
Torso lean
- Kawasaki Vulcan S
- Neutral (9.1 deg)
- Suzuki Boulevard C109R
- Neutral (11.8 deg)