PBI Sprockets brand countershaft sprocket. CR125 04-07, CR250R/X 04-16.
Sunstar - 10715 - Steel Front Sprocket, 15T.
PBI Sprockets #420 pitch 13T CRF50F, 70F, 80R, 85R
Vortex pn 1325-15 - Front Sprocket, 15T. Fits Honda
Sunstar Sprocket Countershaft - 15-Tooth 10315
Driven Brand Sprocket Steel Fits 2002-2008 Honda CRF 250
Driven Brand Sprocket Steel Fits 2004-2008 Honda CRF 450