Is there a better nut for the countershaft sprocket on 1996+ bikes?
This is a fairly standard thread size for countershafts. The nut from a 1983 Suzuki GS1100E will work, and the nut from a Kawi ZRX might work as well. These nuts have a full-height hex, rather than the stepped design of the KLR nut. This may give you a better grip with the socket. Sagebrush Machine also offers a replacement nut.