cruiser / default rider 183 cm
BMW R 18 vs Harley-Davidson Low Rider S ergonomics
BMW R 18 and Harley-Davidson Low Rider S land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
BMW R 18
92Comfortable
All contacts reached
Harley-Davidson Low Rider S
92Comfortable
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The BMW R 18 has a 719 mm seat; the Harley-Davidson Low Rider S sits at 720 mm, within a few millimetres of each other. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 72 cm for the BMW R 18 and 72 cm for the Harley-Davidson Low Rider S.
Geometry snapshot
| Spec | BMW R 18 | Harley-Davidson Low Rider S |
|---|---|---|
| Seat height | 719 mm | 720 mm |
| Wheelbase | 1,730 mm | 1,615 mm |
| Wet weight | 345 kg | 308 kg |
| Displacement | 1,802 cc | 1,923 cc |
Posture metrics
Knee angle
- BMW R 18
- Open (128.6 deg)
- Harley-Davidson Low Rider S
- Open (117.8 deg)
Hip angle
- BMW R 18
- Sport (81.6 deg)
- Harley-Davidson Low Rider S
- Sport (79.5 deg)
Elbow angle
- BMW R 18
- Relaxed (143.3 deg)
- Harley-Davidson Low Rider S
- Relaxed (143.3 deg)
Torso lean
- BMW R 18
- Neutral (11.4 deg)
- Harley-Davidson Low Rider S
- Neutral (9.7 deg)