Wt - 40 lbs.

Gears - 7 speeds, SRAM 4.0 rear derailleur; single 42 chain ring

Shifter - SRAM 4.0 twist grip

Brakes - All wheel Winzip disc

Seat - Adjustable/breathable padded nylon mesh; 48 degree

Wheels - 20" composite mag rear; 16" composite mag front

All other aspects of kart equal to X Class

The composite wheels and the single gear up front and the 20 inch rear wheel.  I hear the seating; you can’t tell a difference.  The smaller rear wheel gives it more response when pedaling

David

saw the st on the kmxus web site, anyone know the specs? - same frame
with different wheels?
amazing price, gotta love that
Pete