HPI Savage 21 39-tooth Delrin second gear DSAV1639T2T by GPM  [DSAV1639T2T]

HPI Savage 21 Delrin 2speed Second Gear (39T) With Screws - 1pc set - GPM DSAV1639T2T
Price:
NZD$19.61
Brand:
GPM
Model:
DSAV1639T2T
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39T Delrin second gear for Savage 21 replacement

This is a Delrin second gear intended for the HPI Savage 21 chassis and listed as DSAV1639T2T. The Delrin construction helps reduce friction inside the gearbox and aims to keep shift feel consistent during off-road use.

The item is supplied as a 1 pcs set and includes the mounting screws stated in the original product name. It is intended for direct replacement in compatible Savage 21 two-speed gear sets where the 39-tooth second gear is required.

Installation notes:

  • Confirm gear mesh and clearance before completing assembly to prevent binding under load.
  • Check mating spur and pinion condition and replace worn components to protect the new gear.
  • Hand-start screws then tighten in stages to ensure even clamp without stripping threads.

Tuning role:

  • The Delrin second gear is suited to retaining consistent shifting when running stock or lightly upgraded drivetrains.
  • Delrin smooths engagement by lowering friction but does not change the gearbox ratio; swap tooth counts for ratio adjustments.

Does this suit all Savage 21 gearboxes?

It is designed for two-speed units that use a 39T second gear; confirm your specific gearbox version and hub spacing before fitting.

What hardware is supplied?

The product ships as a 1 pcs set and includes the mounting screws named in the original product name.

Is Delrin suitable for higher power motors?

Delrin lowers gear-tooth friction but monitor wear under high torque and consider metal options if you frequently run extreme power levels.

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