sporty engines are a noisey damn engine. they do sound like chain driven rat cages. but rest assured, they are a solid engine, and provide 1000's of miles of good service. just stay up on the maint. and you'll be good to go-many will say thats just the hum of the harley.
block components and valve components are built to fit into a full size v-8 engine! they do make noise. but their tuff as hell!
love my 883, have 8.5 k on it and goin strong!
