I had to change mine after 23,000 miles. Cost me 60 bucks for the fronts. Kinda sucked but they were easy as hell to change except for the fact that the local suzuki dealer (who changed my front tire for me not 3 days earlier) used an impact wrench to remount my callipers, which made it impossible to remove them by any other means than finding someone else who had an impact wrench. It sucked. but was easy once i got the callipers off.