Skip to product information
INJORA 4M-104SRFR +5mm Diamond Portal Axles Lay Down Servo TRX-4M Silver

INJORA 4M-104SRFR +5mm Diamond Portal Axles with Lay Down Servo Mount (Silver)

Upgrade your Traxxas TRX-4M with the genuine INJORA 4M-104SRFR Diamond Portal Axle Set. This complete front and rear axle assembly features CNC-machined aluminum housings, hardened steel CVD shafts, and a servo-on-axle lay down servo mount for improved steering geometry and increased ground clearance. The +5mm widened design provides enhanced stability and climbing performance while maintaining compatibility with many stock TRX-4M drivetrain components.

Features:

  • Genuine INJORA upgrade part
  • Part Number: 4M-104SRFR (INJ4M-104SRFR)
  • Color: Silver
  • Complete front and rear portal axle assemblies
  • CNC-machined aluminum diamond-style axle housings
  • Servo-on-axle lay down servo mount
  • +5mm width per side (+10mm overall track width)
  • Hardened steel CVD front axle shafts
  • 20CrMo alloy steel gears
  • Pre-assembled for quick installation (grease recommended before use)

Specifications:

  • Housing Material: CNC Aluminum
  • Gear Material: 20CrMo Alloy Steel
  • Axle Gear Ratio: 24T/12T (Stock Ratio)
  • Portal Gear Ratio: 15T/20T (25% Reduction)
  • Overall Width: 124mm (4.88")
  • Offset: 8.9mm
  • Front Axle Weight: 69g
  • Rear Axle Weight: 53g

Compatibility:

  • Traxxas TRX-4M
  • Compatible with INJORA Universal Chassis
  • Compatible with stock TRX-4M axle gears, chassis links, and driveshafts
  • Compatible with INJORA INJS2065, INJS11, INJS15, and stock TRX-4M servos
  • Not compatible with the stock TRX-4M chassis due to the wider lay down servo mount.

Package Includes:

  • (1) Front Portal Axle Assembly
  • (1) Rear Portal Axle Assembly
  • Steering Links
  • Lay Down Servo Mount
  • Installation Hardware

Condition:

  • Brand New
  • Genuine INJORA Product

The INJORA 4M-104SRFR is an excellent performance upgrade for TRX-4M owners seeking improved ground clearance, stronger drivetrain components, better stability, and enhanced scale realism for technical crawling and trail driving. 

You may also like