Schlumpf 27T/68 High Speed Drive w/170mm Cranks - The Schlumpf High Speed Drive is our favorite piece of cycling engineering. This planetary gear setup will give you higher high gears and lower low gears. If you have a trike with a 20in rear wheel the HSD will give you back the high end you are missing.
Schwalbe Big Apple 20x2.00 (50-406) HS430 Tire - Built in suspension. The tire suspension responds amazingly well - an advantage that is more important in everyday life than long spring travel. Using simple technology, cycling can remain low-maintenance and easy.
HP Gekko Full Fender Set - A full set of fenders for your HP Gekko, to keep water or debris from flying at you or to just spiff up your trike and make it look cool.
Avid BB7 Front Disc Brake Kit (pair) - This kit includes everything you need to upgrade your trike's brake system to the best mechanical disc brake system available. Perfect for for any home builds.