Schlumpf 34T/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.
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.
Mirrycle Mirror - The Mirrycle Mirror is by far the most popular mirror for recumbent trikes. It is well made, attaches to any 7/8in tube or handlebar and is easily adjustable. This is an essential safety item for anyone riding a recumbent bike or trike on the street.