electric / default rider 183 cm
Alta Motors Redshift EXR vs CAKE Kalk& ergonomics
Alta Motors Redshift EXR and CAKE Kalk& land within a few ergonomic points for the default rider, so the better choice comes down to posture preference and bike category.
Fit verdict
Alta Motors Redshift EXR
All contacts reached
CAKE Kalk&
All contacts reached
The two bikes are close enough that posture preference matters more than the overall score.
Rider fit: reaching the ground
The Alta Motors Redshift EXR has a 927 mm seat; the CAKE Kalk& sits at 909 mm — a 18 mm difference. As a rule of thumb you flat-foot a bike when your inseam roughly matches its seat height: about 93 cm for the Alta Motors Redshift EXR and 91 cm for the CAKE Kalk&.
That makes the CAKE Kalk& the easier reach to the ground — the safer pick for shorter riders or anyone who wants both feet planted at a stop — while the Alta Motors Redshift EXR 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 | Alta Motors Redshift EXR | CAKE Kalk& |
|---|---|---|
| Seat height | 927 mm | 909 mm |
| Wheelbase | 1,492 mm | 1,311 mm |
| Wet weight | 124 kg | 79 kg |
| Displacement | - | - |
Posture metrics
Knee angle
- Alta Motors Redshift EXR
- Sport (58.2 deg)
- CAKE Kalk&
- Sport (57.7 deg)
Hip angle
- Alta Motors Redshift EXR
- Neutral (93.0 deg)
- CAKE Kalk&
- Neutral (96.6 deg)
Elbow angle
- Alta Motors Redshift EXR
- Relaxed (143.3 deg)
- CAKE Kalk&
- Relaxed (143.3 deg)
Torso lean
- Alta Motors Redshift EXR
- Neutral (12.7 deg)
- CAKE Kalk&
- Neutral (10.5 deg)