2.52 Drive Sprockets Brand: Scorpion Part Number: 042611 Notes: Replacement Drive Sprockets for the Scorpion Sled that used 2.52 pitch sprockets with a 1" drive shaft. These are new black plastic replacements and not old stock. These also fit many other model sleds that take 2.52 pitch sprockets with a 1" drive shaft. Price: $55.00