The riser is the part between the limbs, including the handle.

Your Panda:

Edit: I was afraid of that. I can't copy the picture from my 'puter to post.

Anyway, it says draw weight ranged from 15-35 lbs in 5 lb increments, measured at 26". Figure the draw weight increases 1.75 lbs per inch for a bow that's 35 lbs at 26", you'd have to draw right at 29" for it to get up to 40 pounds.

Bear, like most other bowyers, always marked their bows with caligraphy pen, so it's original. Whatever it says the weight is, that's it.