Hot Racing HD Spiral Bevel Underdrive Gear Set (43T/13T) (AX10)


Product type: Pinions & Gears

Vendor: Hot Racing



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  • Precision machined helical spiral cut gears offer inherently greater strength and smooth operation than the factory bevel cut gears
  • High carbon steel construction
  • Stronger than the stock bevel-cut zinc cast gears
  • 43T/13T provides 13% gear reduction (vs stock 38T/13T) to increase available torque to ground


  • Installation following kit manual
  • One M3x2.5x11mm (Axial AXIA0175 or Hot Racing HRASSP311) or M3x2.5x12mm (Axial AXIA176) screw shaft for driveshaft attachment
  • Do not use the stock M3x3mm setscrew (Axial AXIA180), if originally equipped.
  • Medium threadlock (e. g. blue Loctite) if screws are threaded into metal
  • Hot Racing HRASPL10G05 high temp grease recommended


  • Replaces Axial AXI30392 38/13T bevel-cut zinc cast gears
  • Hot Racing gear set options include: HRASWRA9364 (36T/14T overdrive ratio), HRASWRA9383 (38T/13T stock ratio), HRASWRA9433 (43T/13T underdrive ratio)
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