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.
Shimano PD-M324 Combo Pedals - Shimano PD-M324 Clipless SPD/Cage Mountain/Road Pedals. Features SPD clipless on one side and standard clip/strap on other. Cup and cone bearings. Includes SM-SH56 cleats. Four degrees of Rotation.
-Platform and SPD
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.