Super Charger Accessories
Increase full range for more torque and speed!
Add another 7 gears with "Speed Drive"

Link for more info on how this BB works.

Order your bike with SPEED DRIVE for $635 extra.

SPEED DRIVE part without installation costs $575. We can make the special bottom bracket chamfer cutting tool available for your local bike shop to install the drive...

IMPORTANT! WE NO LONGER OFFER THE SPEED DRIVE. It can be purchased through Schlumph in Switzerland. We discontinued this option because the benefit of a higher gear was somewhat canceled by the increased wind resistance above 25 mph. I.E., overcoming the resistance requires significant muscle even with the extra electric assist.

Click for more accessory specials!
We've found other accessories that are a good fit on Charger bikes!

Link to special prices offered with new bicycle or tricycle purchases.