Goldspeed Rear Sprocket - X-TREME - The Ultimate

I don't have sufficient product information to write an accurate description. To create a proper DS Racing Karts product description, I need details such as: - Tooth count - Bore/shaft size - Material composition - Compatibility (engine type, chassis) - Pitch/chain size - Any measurable specifications Please provide the actual product specifications, and I'll write a concise, factual description without inflating claims like "ultimate" or "x-treme."