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.
SunLite Locking Brake Lever Set - These locks act as parking brakes and replace having to use parking straps. Forget worrying about your trike rolling away, especially with two locking brakes instead of just one.
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.
Velocity Bottle Trap Water Bottle Cage - Black - The Velocity water bottle cage is lighter than your average metal cage, and it's more effective in keeping your bottle with you. Featuring a more enclosed design, this cage is great for Recumbents that have a bad habit of throwing bottles out of standard cages.