Is that on the main site https://starkfuture.com/ ? When you select EX, MX 1.2 or SM in the upper left hand corner, you don't see the below page to select options and then click the 'Order Now' button to put it in your cart? You may need to have a user ID created to complete the order, but even when I'm not logged in, I can build any of the three bikes and put in cart.