Don't know if there is a better one. Probably is from Staton. I used another China 22 tooth. Chain path has to be absolutely straight & tension correct or they wear out quickly. Are you changing tooth count? Mine is pretty low geared but still can't get top rpms in highest range so I think I have taken advantage of all I can get out of my Honda 50. Climbs a VERY steep hill no prob. I clocked it at 52 mph with engine running about 3/4 capacity.
THESE HUBS ROCK!!!!!!!!! I love mine. Shifts very easily.