Schwalbe Marathon Racer 20x1.50 (40-406) HS429 Tire - The most popular recumbent trike tire by far. There is a reason that this tire is the default stock option on so many recumbent trikes. Every tire is a compromise of weight, speed, puncture resistance, and longevity and the Schwalbe Marathon Racer is the best option for the average trike rider.
Bafang 1000W Middrive Motor Upgrade for Catrike - This powerhouse provides maximum power to the rear wheel. This will give you the best climbing power as well as the highest top speeds. It is paired with the 850C color computer console which allows you to program up to 9 levels of assist. Can be controlled automatically by pedaling or by using the throttle.
Power Grip Sport Pedal and Strap Set - Don't want to have your feet come off the pedals but don't want to wear special cycling shoes? Helping you avoid the hassle of special shoes, the Power Grip straps hold your feet securely on the pedals while wearing your favorite pair of sneakers. A favorite option on many recumbent bicycles and trikes. To use, just put your feet through the straps at an angle. When your foot straightens out the straps lock against your shoe. Simple and effective.