I have had leatherlykes on the Rocket for nearly 9 years, as has been said they are tough as nails and that is one reason I got them. I have dropped the bike three times and the bags and engine guards took the brunt with no damage to the bike or the bags/engine guards. In fact, I will put the bike on its side resting on the engine guards and bags to work on anything that needs to be done down low or underneath. Plus the bags hold the bike at a more favorable angle for getting it back upright.