American Elm reflex deflex. 50 inches knock to nock. 43 lbs at 25.5 inches of draw. Off side wood at shelf is .750. Wood front to back .750 at the thickest part of riser. Riser is one inch wide. The bow tapers from the middle of the riser to the tips on the belly side. Shelf cut out is .250. Works ,because the riser is working in the last couple inches of draw.Bow shoots a 420 gr. arrow at 151 fps with an 8 strand B55 string. 8 knots in the bow. One big one on the side of the top limb filled with Elm saw dust, and crazy glue. Tribute to Elm wood, and patching with Elm saw dust,and crazy glue. That is what can be done ,but I don't recommend to others for the safety factor.