I have a Befco Cyclone RD5, 60", rear discharge finishing mower that I've used behind a B2400 for the last 14 years. Cuts and mows well. It's had a mulching kit on it almost from new. That slows down the speed you can mow at but I don't need to be mowing very fast anyway. Until last fall the only thing that it has needed has been grease, lotsa and lotsa grease. Last fall I had to replace a whole spindle and pulley assembly but it's up and running again although I really don't need it now as when it was down last fall I bought a new F2680 front mount mower. Now that's a sweet machine.