cafe-racer / default rider 183 cm
Kawasaki Z900RS Cafe vs Mash TT40 Cafe Racer ergonomics
Kawasaki Z900RS Cafe and Mash TT40 Cafe Racer 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
Kawasaki Z900RS Cafe
All contacts reached
Mash TT40 Cafe Racer
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 Kawasaki Z900RS Cafe lists a 800 mm seat; the Mash TT40 Cafe Racer 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 | Kawasaki Z900RS Cafe | Mash TT40 Cafe Racer |
|---|---|---|
| Seat height | 800 mm | 800 mm |
| Wheelbase | 1,476 mm | 1,420 mm |
| Wet weight | 214 kg | - |
| Displacement | 948 cc | 397 cc |
Posture metrics
Knee angle
- Kawasaki Z900RS Cafe
- Sport (58.1 deg)
- Mash TT40 Cafe Racer
- Sport (58.0 deg)
Hip angle
- Kawasaki Z900RS Cafe
- Neutral (93.3 deg)
- Mash TT40 Cafe Racer
- Neutral (94.7 deg)
Elbow angle
- Kawasaki Z900RS Cafe
- Relaxed (143.3 deg)
- Mash TT40 Cafe Racer
- Relaxed (143.3 deg)
Torso lean
- Kawasaki Z900RS Cafe
- Neutral (12.4 deg)
- Mash TT40 Cafe Racer
- Neutral (11.6 deg)