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 land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
Can-Am Spyder RS
All contacts reached
Harley-Davidson Tri Glide Ultra Classic
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The Can-Am Spyder RS has a 737 mm seat; the Harley-Davidson Tri Glide Ultra Classic sits at 720 mm — a 17 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 74 cm for the Can-Am Spyder RS and 72 cm for the Harley-Davidson Tri Glide Ultra Classic.
That makes the Harley-Davidson Tri Glide Ultra Classic the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the Can-Am Spyder RS 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 | 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)