BEWARE: Do not confused 415 with 415-H chain!
415-H will not fit our SKYHAWK 2 stroke bicycle engine 10T drive sprocket. It most likely won't fit our competitors sprockets as well.
FYI: 415-H will bottom out in the 10T drive sprocket like found on China made bike engines including ours thus making the chain not track evenly and will cause it to jump off the sprocket. FROM GRUBEE