With the 235 single ply and cross country tubes it was 37.2 lbs which was no good for DH/FR to many flats got dh tubes and tires on it now and its low 40s like 40.5 lbs but i can still go tubeless,crank,pedals,and the much lighter new e13 chain guard and bash I would say the lightest and strongest would be around 36lbs but it will cost you! I got my AM prophet down to 32.4. Now that bike is sick but not as strong as the mx. Took the AM to Diablo and had to get my back rim trued . I beat the shit out of the MX and it want more. Hope this help you!