When it comes to determining how many miles is considered “a lot” of miles on a Road Glide, there is no definitive answer as every motorcycle and its rider are different. Some riders may consider 10,000 miles a lot while others may think 30,000 or more miles is an acceptable amount of mileage.
The key factor in determining the longevity of your Road Glide will be maintenance; if you keep up with regular oil changes and other necessary repairs and tune-ups then you can expect your bike to last for many years without any major issues. Regular maintenance should include checking all nuts and bolts for tightness, changing fluids regularly (including engine oil), inspecting brakes/tires/wheels for damage or wear, greasing moving parts such as drive belts and chains, replacing air filter elements when needed, lubricating cables when needed, etc. All these things go into ensuring that your bike will run safely and efficiently for years to come.
With proper maintenance in place you can expect your Road Glide to last anywhere from 40-60 thousand miles before needing significant repair work done on it - although some riders have reported going beyond this range with their bikes still running strong after upwards of 80 thousand