motocross / default rider 183 cm
CZ 400 MX Type 981 vs Hodaka Super Rat ergonomics
CZ 400 MX Type 981 and Hodaka Super Rat 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.
Posture overlay
The default rider's modeled seated posture on each bike, solved from the same geometry as the score panels and overlaid on one ground line so seat height and reach differences are visible at a glance.
Modeled fit comparison
CZ 400 MX Type 981
All contacts reached
Hodaka Super Rat
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 CZ 400 MX Type 981 lists a 836 mm seat; the Hodaka Super Rat lists 838 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 | CZ 400 MX Type 981 | Hodaka Super Rat |
|---|---|---|
| Seat height | 836 mm | 838 mm |
| Wheelbase | 1,390 mm | 1,270 mm |
| Wet weight | - | - |
| Displacement | 400 cc | 99 cc |
Posture metrics
Knee angle
- CZ 400 MX Type 981
- Sport (57.9 deg)
- Hodaka Super Rat
- Sport (57.7 deg)
Hip angle
- CZ 400 MX Type 981
- Neutral (95.4 deg)
- Hodaka Super Rat
- Neutral (98.0 deg)
Elbow angle
- CZ 400 MX Type 981
- Relaxed (143.3 deg)
- Hodaka Super Rat
- Relaxed (143.3 deg)
Torso lean
- CZ 400 MX Type 981
- Neutral (11.1 deg)
- Hodaka Super Rat
- Neutral (9.4 deg)
Fit by rider height
Modeled ground contact by rider height, in 5 bands from 5'2" to 6'4" (158-193 cm).
| Rider height | CZ 400 MX Type 981 | Hodaka Super Rat |
|---|---|---|
| 158 cm / 5'2" | Tiptoe only | Tiptoe only |
| 167 cm / 5'6" | Balls of feet | Balls of feet |
| 176 cm / 5'9" | Balls of feet | Balls of feet |
| 184 cm / 6'0" | Both feet flat | Both feet flat |
| 193 cm / 6'4" | Both feet flat | Both feet flat |
Modeled from each bike's seat height and a typical inseam-to-height ratio only — not a flat-footing guarantee. Real ground contact still depends on seat shape, suspension sag, footwear, and your own proportions. Confirm on the motorcycle.
Verdict
CZ 400 MX Type 981 and Hodaka Super Rat are both motocross bikes, so the practical question is which of their real differences you'd actually feel. CZ 400 MX Type 981 runs a 120 mm longer wheelbase than Hodaka Super Rat, which typically trades some low-speed agility for extra stability at speed. None of that adds up to a clear overall winner in the modeled posture score, so the individual differences above are the more useful comparison than the headline number. Treat every figure here as a planning estimate: seat width, suspension sag, footwear, and your own proportions can shift the real feel more than a few millimetres or degrees on paper. Load your height and inseam into the simulator, then sit on both before you decide.
Kit out either bike
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