- Function:
A 2-gear planetary transmission integrated into the bottom bracket, designed to tackle steep slopes and challenging terrains. - Key Features:
- Provides a transmission ratio of 2.5:1, enabling efficient climbing on slopes up to 17%.
- Compact and lightweight, making it ideal for e-bikes and cargo bikes needing additional climbing capability.
- Cranks included for easy setup and installation.
- Application:
Perfect for riders looking to enhance their bike’s climbing ability while maintaining a smooth pedaling experience, particularly on steep hills or with heavy loads.
Vello Schlumpf Mountain Drive (not mounted), with Cranks
From $740.00
Special order. Arrival date not confirmed yet. Request more details




