like topic say F.A.S.T aggresive dune cylinders bore is .040. Bore is in great condition bought from a fellow member here niekes. Had a couple of runs on them selling because want to go with a mx port this cylinders are way fast one of the best looking jobs i have ever seen. Dont no why cant upload fotos text me to 787-560-1554 and i will send pic. Im looking for $300 shipped for cylinders only the port job should be around that price or more