three-wheeler / default rider 183 cm
Can-Am Spyder RS vs Harley-Davidson Tri Glide Ultra Classic ergonomics
Can-Am Spyder RS and Harley-Davidson Tri Glide Ultra Classic 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
Can-Am Spyder RS
All contacts reached
Harley-Davidson Tri Glide Ultra Classic
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 Can-Am Spyder RS lists a 737 mm seat; the Harley-Davidson Tri Glide Ultra Classic lists 720 mm — a 17 mm difference. 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.
On seat height alone, the Harley-Davidson Tri Glide Ultra Classic has the easier modeled ground reach. Load your measurements into the simulator to compare the model, then verify both motorcycles in person.
Geometry snapshot
| Spec | Can-Am Spyder RS | Harley-Davidson Tri Glide Ultra Classic |
|---|---|---|
| Seat height | 737 mm | 720 mm |
| Wheelbase | 1,715 mm | 1,670 mm |
| Wet weight | - | 560 kg |
| Displacement | 998 cc | 1,690 cc |
Posture metrics
Knee angle
- Can-Am Spyder RS
- Sport (58.7 deg)
- Harley-Davidson Tri Glide Ultra Classic
- Sport (58.6 deg)
Hip angle
- Can-Am Spyder RS
- Neutral (88.5 deg)
- Harley-Davidson Tri Glide Ultra Classic
- Neutral (89.3 deg)
Elbow angle
- Can-Am Spyder RS
- Relaxed (143.3 deg)
- Harley-Davidson Tri Glide Ultra Classic
- Relaxed (143.3 deg)
Torso lean
- Can-Am Spyder RS
- Neutral (15.8 deg)
- Harley-Davidson Tri Glide Ultra Classic
- Neutral (15.2 deg)