Parts/Drivetrain/Spur gears/XRAY 48P Spur Gear "H" (78T)
XRAY 48P Spur Gear "H" (78T)
XRAY

XRAY 48P Spur Gear "H" (78T)

Part # XRA3057785.0(1)
Where to buy
$9.95
AMain Hobbies
Seen Oct 12, 2026
$9.95Buy
Prices are as last seen at the store; stock is not tracked.

About this part

XRAY 48 Pitch "H" Spur Gears have been strategically lightened to reduce rotating mass, and are available in a variety of tooth count options to fine tune the gear ratio of your model.

Effects of Spur Gear Changes
 Gear  Effects
 Larger Spur
  • Increased acceleration
  • Decreased top speed
  • Use on smaller tracks for more punch
  • Use with larger pinion to get more overall torque, while maintaining the same gear ratio
 Smaller Spur
  • Decreases acceleration, but smoother
  • Increases top speed

 

Reviews5.0 · 1 reviewacross all options

Brandon BridgesVerified owneron XRAY 48P Spur Gear "H" (87T)

I dove deep into a rabbit hole of figuring out which spur gear worked best for my application (Dirt Oval). This spur gear has been extremely strong holding up for multiple race days after stripping over 1 spur per race day on average from a competing brand. This spur gear also runs truer than the other brands I tested. The price is high for a spur gear, but not for how long it lasts. This is now all I run

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