27,000 miles on a Rocket X bought in Sept 2015 brand new. No problems at all. I normally ride 500 miles plus back and forth to work on a open highway doing a average of 75 to 80 miles a hour. I do all my own Maintenance which included a valve adjustment job recently. The oil gets changed every 5,000 miles with Mobil 10-40 racing T. Recently installed Ramair and waiting on a full system exhaust from Paul. Went over to a friends house to check out his Rocket and pretty much figured out that they very well may have screwed up the valve job by not getting the cams in properly. This job was done by one of the local dealers. Other folks on here have taken their bikes in for valve covers leaking only to find a thousand or so miles the cover is leaking again. Mine is still not leaking after 1,500 miles later but then again i did the work myself. Sure that a few shops out there may know what they are doing but afraid that is not the majority. A lot of headaches can be avoided by doing proper maintenance and I do not believe some of the dealers are doing a very good job which is resulting in major problems. Even a simple clutch cable adjustment done improper from a dealer can lead to bigger problems later on. Thus far the Rocket X is the best bike I have ever owned. Most reliable, not to difficult to work on, and most of all THE MOST FUN TO RIDE.
