I have discussed with you the importance of maintaining the car chain before. You should wash the chain and take the chain regularly. You can also choose to replace the more durable oil seal chain, but you may have overlooked another part of the transmission system-the sprocket. It is also one of the consumables. Of course, there is room for modification and upgrading. When should the head and tail teeth be replaced? From time to time, some knights say that they want to change the big tail teeth for their car. What is the effect? What is the difference in the materials used for the head and tail teeth of the sub-factory? This time let's take a look at the motorcycle sprocket!