GPM MGG057TS 57T 0.5Mod 40Cr Carbon Steel Spur Gear  [MGG057TS]

ARRMA GRANITE GROM MEGA 40cr Carbon Steel Spur Gear 0.5 Module 57 Tooth - GPM MGG057TS
Price:
CAD$19.20
Brand:
GPM
Model:
MGG057TS
GTIN:
4894538411669
Condition:
Brand New
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High strength replacement spur for ARRMA small-scale kits

This 0.5 module 57-tooth spur is constructed from 40Cr carbon steel and intended as a durable replacement for small-scale electric trucks and buggies. The 0.5Mod tooth profile fits common small-scale pinions and is useful when restoring proper mesh, altering gearing for tuning, or swapping out a worn factory unit (in some ARRMA builds this replaces a 59T factory spur).

Fit by setting correct spur-to-pinion mesh, keeping backlash to typical RC practice, and ensuring the gear sits flush on the gearbox shaft. After fitting, spin the drivetrain by hand and re-check mesh with no load before running the model.

Packing includes

  • Spur Gear 0.5 module 57 tooth - 1pcs

Original Name / Part No:

ARA311196

Compatible Models

  • ARRMA 1/18 4WD GRANITE GROM MEGA 380 BRUSHED 4X4 MONSTER TRUCK-ARA2102
  • ARRMA 1/14 TYPHON GROM MEGA 380 BRUSHED 4X4 SMALL SCALE BUGGY RTR-ARA2106
  • ARRMA 1/14 TYPHON GROM 223S DSC 4X4 RTR BRUSHLESS BUGGY-ARA2306S
  • ARRMA 1/14 TYPHON GROM 223S DSC 4X4 RTR BRUSHLESS BUGGY-ARA2306
  • ARRMA 1/16 MOJAVE GROM MEGA 380 BRUSHED 4X4 SMALL SCALE DESERT TRUCK RTR-ARA2104
  • ARRMA 1/16 MOJAVE GROM 223S DSC 4X4 RTR BRUSHLESS DESERT TRUCK-ARA2304
  • ARRMA 1/16 MOJAVE GROM 223S DSC 4X4 RTR BRUSHLESS DESERT TRUCK-ARA2304S
  • ARRMA 1/16 QUAKE GROM 4X4 RTR Brushed Monster Truck-ARA2137
  • ARRMA 1/16 GORGON GROM 4X4 RTR Brushed Monster Truck-ARA2130
  • LOSI 1/12 NASCAR RC Racecar Ryan Blaney No. 12 2024 Menards Ford Mustang 2S AWD RTR Brushed On-Road-LOS1122412
  • LOSI 1/12 NASCAR RC Racecar Chase Elliott No. 9 2024 NAPA Chevrolet ZL1 Camaro 2S AWD RTR Brushed On-Road-LOS1122409
  • LOSI 1/12 NASCAR RC Racecar Kyle Larson No. 5 2024 HendrickCars.com Chevrolet ZL1 Camaro 2S AWD RTR Brushed On-Road-LOS1122405
  • LOSI 1/12 NASCAR RC Racecar RCR No. 3 GM Goodwrench Chevrolet ZL1 2S AWD RTR Brushed On-Road-LOSF1122503
  • LOSI 1/12 NASCAR 2025 Kyle Larson No. 5 Valvoline-LOS1122505
  • LOSI 1/12 NASCAR RC Racecar Dale Earnhardt Jr. No. 8 Budweiser Chevrolet ZL1 2S AWD RTR Brushed On-Road-LOSF1122508
  • LOSI 1/12 NASCAR 2025 Ross Chastain No. 1 Busch Light-LOS1122501
  • LOSI 1/12 NASCAR 2025 Chase Elliott No. 9 NAPA-LOS1122509
  • LOSI 1/12 NASCAR 2025 Christopher Bell No. 20 DeWalt-LOS1122520
  • LOSI 1/12 NASCAR 2025 William Byron No. 24 Raptor-LOS1122524
  • LOSI 1/12 NASCAR 2025 Ryan Blaney No. 12 Advance Auto-LOS1122512
  • LOSI 1/12 NASCAR 2025 Joey Logano No. 22 Shell-LOS1122522

Will this 0.5Mod spur mesh with standard small-scale ARRMA pinions?

Yes. The 0.5 module tooth form is compatible with 0.5Mod pinions used on the listed ARRMA small-scale models, but always check mesh before final assembly.

Can I use this to change the final drive ratio from a 59T spur?

Swapping to 57T lowers the overall ratio compared with 59T; confirm clearance and mesh, then test by hand to ensure the desired performance change is achieved.

What checks should I do after installing the new spur?

Ensure the gear is seated and secured, set proper backlash, rotate the drivetrain freely by hand, and re-check mesh under no load before running to avoid premature wear.

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