How to Read the Charts
The horizontal axis shows bike speed in mph (1–23 mph). Bikes are legally limited to 15.5 mph. The vertical axis shows power in Watts (0–800W).
The four thin coloured plots represent hill gradients (0–15%), showing the power needed to climb. The thick red plot shows motor output at full throttle. Real-life performance may be 5–10% lower with a headwind. Charts are for guidance only.
8Fun SWXK Motor (Woosh Santana)
| Flat road max speed | 16.5 mph |
| 5% gradient max | 11.5 mph |
| 10% gradient max | 3.5 mph |
| 15% gradient | Cannot climb on throttle alone |
8Fun BPM Motor (Woosh Big Bear)
Speed limited to 15 mph by computer.
| Flat road max speed | 20.5 mph |
| 5% gradient max | 15 mph |
| 10% gradient max | 8.5 mph |
| 15% gradient | Cannot climb on throttle alone |
TCM Crank Drive Motor
All Woosh CD bikes use the TCM crank drive motor. Power goes through the chain and sprockets, so each gear gives a different response. Recommended gear on throttle:
- 8Flat roads
- 73% gradient
- 65% gradient
- 210% gradient
- 1Steeper than 10%
All CD bikes are restricted to 15 mph by computer. Speeds above 15.5 mph are illegal on public roads.
Not sure which motor?
Call us before purchasing — we'll match the right motor to your terrain and riding style.
01702 684444