SunRace M30 7-Speed Direct Fit Rear Derailleur - -6/7-speed MTB rear derailleur -Engineered polymer and steel construction -Direct mount with optional hanger included -SHIMANO Equivalent RD-TY21 / RD-A070

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Schwalbe Marathon Plus 20x1.75 (47-406) HS440 Tire - The Marathon plus tire has a thick protective liner to keep foreign objects from reaching the tube. Schwalbe has a protection level 7 out of 7 for all Marathon Plus tires. This is our most popular tire by far because it's affordable and they will outlast any tire out there. You'll be surprised at how smooth and quiet they roll. -WIRE BEAD -PSI: 50-70

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.

UTCustom Computer Sensor Mount for Sun Trikes -

UTCustom Sun Battery Mount - This is a bolt on battery mount that uses CNC machined clamps to securely attach the battery to the frame. We mount the batteries low and near the rear axle, because that is the best place for them. Includes custom fabrication to mount to sunseeker models (NOT Fat tad CXS or Eco-Tad Trikes) and hardware. PLEASE SPECIFY WHAT SUN TRIKE MOUNT IS FOR