SRAM 10 Speed Rear Gearing with Gx Derailleur and PG-1050 Cassette.

Catrike Chain Tensioner by TerraCycle - This Chain tensioner system made for all Catrike models by TerraCycle allows the rider to change the boom length without having to worry about adjusting the chain. It's easy to set up, hassle-free, and makes it easier for different friends to check out your cool new trike.

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.

Catrike Adjustable Headrest and Neck Rest - Easy to adjust and very light, the Catrike Neck Rest is a great upgrade to your trike.

Mirrycle Mirror Adjustable 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.

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.

Schwalbe Marathon Racer 26x1.50 (40-559) HS429 Tire - The fastest Marathon ever. Everything is optimized for speed. Qualifier Compound and sporty, light sidewalls make the Marathon Racer extremely flexible and minimizes rolling resistance. - WIRE BEAD MAX PSI 85

Catrike Seat Adjusters for All Catrike Models with Folding Seat - Stock Catrike Seat Adjusters. These come stock on all Catrike models with a folding seat.