• Model: SZ2-UP23
  • Brand: Atomic

27T Ball Diff Spur Gear (SZ, SZ2, AMZ)

SZ2, MRZ Pro Steel Main Shaft
2.0 x 3.8 x 0.8mm Brass Shim (8 pcs)
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stock gear is 28T
Usually, we will put 27t in the front ball diff.
it is because we have smaller front tire diameter.
A faster front drive ratio will make the car easier to drive and not over steering in corners.

highly recommand to SZ2 or AMZ racers.