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Boom Racing Complete Assembled BRX90 Portal PHAT Axles


Introducing the new Complete Assembled BRX90 Portal PHAT Axles.

The BRX90 fits most standard-sized 1/10 vehicles, perfect for your custom builds.
Packed with many desirable features; a heavy-weighted cast alloy axle housing for low CG, setup of your chassis using links or leaf spring over and under the axle, chassis-mounted or axle-mounted servo, behind-the-axle steering or front tie rod, detachable aluminum CNC truss, adjustable caster angle and more.
Our four-gear portal gearbox also means you can use them to fit directly onto most drivetrains without needing to change the rotation direction.
  • Width: 188.3mm / 7.41" pin-to-pin (front and rear)
  • Portal gearbox ratio: 1:1
  • Weight: 321.8g (front) / 261.6g (rear)
  • Portal Gearbox Size: Width: 23.5mm / Height: 30.5mm (21.5mm above shaft / 9mm below)
  • Requires 44mm / 1.73" wheel barrel clearance (to clear the entire portal gearbox)
  • Additional 15mm / 0.59" ground clearance at the pumpkin over the BRX90 straight axle
  • CNC aluminum portal knuckles & covers (front) / lockouts (rear)
  • BADASS™ heavy-duty steel front universal (front) / rear driveshafts and portal spindles for ultimate durability and strength for the axle drivetrain
  • Four heavy-duty hardened steel metal gears in each portal gearbox
  • PHAT axle (heavy and strong) for low CG
  • Anti-twist steel brackets (0 Deg) for axle strength
  • Reversible axle gear in the housing for counter rotation setup and optional reversed-cut ring and pinion gear available
  • Triangular keyed (30/8T) hardened steel AR44 high pinion helical ring and pinion gear with spool
  • Chassis Mounted Servo (CMS) or servo-on-axle setup
  • CNC aluminum truss included for 3-Link and a 4-Link setup
  • Detachable knuckle lever for Behind-The-Axle steering setup option (front)
  • Leaf spring over and under the axle housing option
  • Compatible with PHAT™ Axle brake disc and caliper (requires optional adapter BRPT005)
  • Adjustable caster angle for additional steering adjustability
  • High steering angle - over 45 degrees
  • Removable third member for 6x6 / 8x8 pass-thru option
  • Counter rotation stainless steel steering link for quick adjustments
  • Full rubber sealed bearings
  • Full 12.9-grade hardware














Author:Joel Berones

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