APPLICATION: WORKS WITH SAVAGE 21 RTR, 25 RTR, & 25 SS.

This is the HPI Aluminum 18-23 Tooth Drive Gear. HPI states that this lightweight aluminum gear will help the Savage accelerate faster because of reduced rotating mass. HPI also states that these aluminum gears will lower driveline resistance on the Savage compared to the heavier 18-23T stock steel drive gear (HPI86097).

TECH TIP: Most everyone knows that lowering the weight of any vehicle can enhance performance, but did you know that lowering driveline weight can have a stronger effect on overall performance? By lowering rotational mass in a transmission and elsewhere in the driveline, the engine is able to spin up the lighter driveline faster and accelerate the whole truck quicker!

RECOMMENDATION: If you want maximum performance benefits, it is a good idea to lighten up the whole driveline as much as possible. While you have the transmission taken apart, you might want to consider replacing several of the driveline components with lighter upgrade parts. We try to stock the following lightweight Savage driveline components... to see these items use the SEARCH at the top of any page to search on the listed part numbers:

HPI86274 - HPI Savage Light Weight 32T Drive Gear
HPI86275 - HPI Savage Light Weight 29T Idler Gear
HPI86136 - HPI Aluminum 18-23T Drive Gear
HB61160 - Hot Bodies Titanium Gear Shaft
HB61187 - Hot Bodies Titanium Main Gear Shaft