standard / default rider 183 cm
Honda Grom vs Triumph Street Twin ergonomics
Honda Grom and Triumph Street Twin 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 Grom
All contacts reached
Triumph Street Twin
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 Grom lists a 761 mm seat; the Triumph Street Twin lists 760 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 Grom | Triumph Street Twin |
|---|---|---|
| Seat height | 761 mm | 760 mm |
| Wheelbase | 1,200 mm | 1,415 mm |
| Wet weight | 103 kg | 216 kg |
| Displacement | 124 cc | 900 cc |
Posture metrics
Knee angle
- Honda Grom
- Sport (57.5 deg)
- Triumph Street Twin
- Sport (58.0 deg)
Hip angle
- Honda Grom
- Neutral (99.6 deg)
- Triumph Street Twin
- Neutral (94.9 deg)
Elbow angle
- Honda Grom
- Relaxed (143.3 deg)
- Triumph Street Twin
- Relaxed (143.3 deg)
Torso lean
- Honda Grom
- Neutral (8.3 deg)
- Triumph Street Twin
- Neutral (11.5 deg)