Savage X
replacement part: #77094
The higher gear ratio, the higher top speed! Replacing the 49T spur gear included in the Savage X with #77092 spur gear 47T will further increase the top speed. Best suited for .28 or bigger engines.Genuine HPI quality spare part for easy maintenance and repairs. The standard spur gear size for the Savage X is 49 teeth, this 47 tooth spur will enable higher top speeds!