HELLO KF.looking to by a tank bag,a mag mouny 18 liter cortech. heard the magnet take paintup on metakflake tanks?but do like the system,hada eclipse strap 20 years was good on honda900f but zzr600 tank is big,any input feedback would help like the cortech look?thx tref

 

I have three different magnetic tank bags and yes, after a while you will see some fine marks on the tank. I'm sure a simple polish and wax will take it right out, but... do you really want to deal with that?