actually no for i checked mine. i think the wider gap is an advantage for it is next to imposible to mount the rear sprocket on your spokes and have it perfect so thier is a little wabble and the chain is able to stay straight with the little play that is now allowed. i got a lot of miles on that 411 chain and have checked every thing. i keep hearing of others having thier 415 chain brake including mine so they are not to good. the advantages of the 411 chain is the extra gap, a heck of a lot cheaper, i think it is made of a better grade of steel so stronger, its readly available along with the parts for them. the 411 chain is a perfect match for the motorized bicycle in my opinion