i have been looking to buy a new quad but today i remembered that we had alot of extra parts kickin around so im gonna build quad. i lookin for a frame to buy right now and i have found a 250ex frame its tiny for the engines im thinkin bout putting in the quad so it would have to be stretched out as far as the motor im ethier gonna use a hond vt 500 http://img.2dehands.nl/f/normal/8746424.gif off a street bike we have or a yamaha 650 special http://www.totalmotorcycle.com/buyer...pecial1979.jpg that we also have. the engines both have to be rebuilt if you have a frame for sell let me know and tell me what you think about this and how its gonna turn out