I need to know if their is a new spur gear that will work for my old kyosho sandmaster st. The origanal part # is sm15 but i cant find one, would like a metle one too.

I found a plastic one on ebay. Just go to ebay and type Kyosho Sandmaster and you will see it. Best I could do didnt see any metal gears.

A metal spur was never made for these. The part is $3 on shopkyosho.com. It says it needs to be backordered, but that isn't always accurate. Sometimes you get the part sent to you right away.