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Rider Height
<- Comparison guides

sport / default rider 183 cm

BMW R 90 S vs Honda RC51 ergonomics

BMW R 90 S and Honda RC51 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 90 S

90Comfortable

All contacts reached

Honda RC51

90Comfortable

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 90 S has a 820 mm seat; the Honda RC51 sits at 820 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 82 cm for the BMW R 90 S and 82 cm for the Honda RC51.

Geometry snapshot

Geometry comparison for BMW R 90 S and Honda RC51
SpecBMW R 90 SHonda RC51
Seat height820 mm820 mm
Wheelbase1,465 mm1,410 mm
Wet weight215 kg-
Displacement898 cc999 cc

Posture metrics

Knee angle

BMW R 90 S
Sport (60.7 deg)
Honda RC51
Sport (60.7 deg)

Hip angle

BMW R 90 S
Neutral (99.5 deg)
Honda RC51
Neutral (99.5 deg)

Elbow angle

BMW R 90 S
Relaxed (143.3 deg)
Honda RC51
Relaxed (143.3 deg)

Torso lean

BMW R 90 S
Forward (25.8 deg)
Honda RC51
Forward (25.5 deg)