Schlumpf High Speed Drive (HSD) presented by Utah Trikes
5:22
Schlumpf High Speed Drive and EZ Shift Levers - Trike Show - 04/20/15
9:19
Schlumpf High Speed Drive installation
6:03
TerraTrike Rover Recumbent Trike Tricked Out
14:19
Are Chainless Digital Drive Bicycles The Future of Cycling?
22:54
I Made My Own Mini Gasoline Car That Even The Chinese Would Admire
3:45
The Schlumpf Drives - Add Huge Gear Range to Your Trike - Mountain & High Speed Drives | Utah Trikes
14:32
Rapid Proto Velo
2:29