motocross / default rider 183 cm
CZ 400 MX Type 981 vs Suzuki RM85 ergonomics
CZ 400 MX Type 981 and Suzuki RM85 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
CZ 400 MX Type 981
All contacts reached
Suzuki RM85
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The CZ 400 MX Type 981 has a 836 mm seat; the Suzuki RM85 sits at 850 mm — a 14 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 84 cm for the CZ 400 MX Type 981 and 85 cm for the Suzuki RM85.
That makes the CZ 400 MX Type 981 the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the Suzuki RM85 gives taller riders more legroom and a more open knee bend. Load your own height and inseam into the simulator to see exactly how each one fits you.
Geometry snapshot
| Spec | CZ 400 MX Type 981 | Suzuki RM85 |
|---|---|---|
| Seat height | 836 mm | 850 mm |
| Wheelbase | 1,390 mm | 1,240 mm |
| Wet weight | - | 73 kg |
| Displacement | 400 cc | 85 cc |
Posture metrics
Knee angle
- CZ 400 MX Type 981
- Sport (57.9 deg)
- Suzuki RM85
- Sport (57.6 deg)
Hip angle
- CZ 400 MX Type 981
- Neutral (95.4 deg)
- Suzuki RM85
- Neutral (98.7 deg)
Elbow angle
- CZ 400 MX Type 981
- Relaxed (143.3 deg)
- Suzuki RM85
- Relaxed (143.3 deg)
Torso lean
- CZ 400 MX Type 981
- Neutral (11.1 deg)
- Suzuki RM85
- Neutral (8.9 deg)