sport / default rider 183 cm
Honda RC51 vs Zontes 703RR ergonomics
Honda RC51 and Zontes 703RR 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
Honda RC51
All contacts reached
Zontes 703RR
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 Honda RC51 lists a 820 mm seat; the Zontes 703RR lists 820 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 | Honda RC51 | Zontes 703RR |
|---|---|---|
| Seat height | 820 mm | 820 mm |
| Wheelbase | 1,410 mm | 1,450 mm |
| Wet weight | - | 202 kg |
| Displacement | 999 cc | 699 cc |
Posture metrics
Knee angle
- Honda RC51
- Sport (60.7 deg)
- Zontes 703RR
- Sport (60.7 deg)
Hip angle
- Honda RC51
- Neutral (99.5 deg)
- Zontes 703RR
- Neutral (99.4 deg)
Elbow angle
- Honda RC51
- Relaxed (143.3 deg)
- Zontes 703RR
- Relaxed (143.3 deg)
Torso lean
- Honda RC51
- Forward (25.5 deg)
- Zontes 703RR
- Forward (25.7 deg)