EFF.
Not so much that I was endorsing the JT. I have used them and they are acceptable. Rather, I included the PDF for its' listing of all the years and brands that use the the same sprocket as the GG.
Maybe it should be included in the cross reference for brand section re. sprockets.
The Ironman front and rear sprockets are outstanding.
The front Ironman outlasts the Sprocket Specialists front sprocket by a good margin. I usually would get between 600 to 800 miles on Sprocket Specialist front sprockets before the teeth started hooking. The Ironman front sprocket has 1790 miles and looks good.
I have used a Stealth rear sprocket on my '01 GasGas. It is far less durable than the Ironman. I will not buy Stealth again.