This key blank fits motorcycle fork locks on many models from many brands. Many motorcycle manufacturers all over the world used Neiman fork locks and this is the key that fits most of them. The short head on this one is nice because it makes it a lot harder to break off the head with your forks when you forget it's in the lock and move the handlebars.The is equivalent to codes HD-666, BOERKEY 666K. Other than head shape, it is identical to SR61N, B69K, Silca NE5, Ilco N2M. This key will work in locks originally using those keys. This is a brass key so it is easily cut on any key machine or manually with a file.