They are a decent general tire and yes, they are all aftermarket tires are heavier then the OEs. The Swamp lites are no longer used much in may of my ATV circles because they were just too open to be good in many soft or wet terrain. You will like them most of the time except in soft sand, soupy mud and water with soft bottom. They are a old and trusted tire though. Been around a long time. Today there are much better tires out there.