LOSI Promoto-MX 7075 Aluminum Rear Swing Arm by GPM MX057  [MX057]

TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057
Price:
USD$74.90
Brand:
GPM
Model:
MX057
GTIN:
4894538376586
Condition:
Brand New
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alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057"
alt="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057" title="TEAM LOSI DIRT BIKE PROMO-MX MOTORCYCLE Aluminum 7075 Rear Swing Arm (Larger Inner Bearings) - GPM MX057"

Rear swing arm for Promoto-MX

This aftermarket rear swing arm is an RC-scale replacement designed for LOSI Promoto-MX bikes, machined from 7075 aluminum for improved rigidity compared with common stock plastic parts. The unit accepts larger inner bearings, specified as 16x8x5, to reduce play at the swing pivot and help maintain chassis alignment under aggressive riding.

The arm is intended as a direct replacement for Promoto-MX rear swing components on compatible LOSI 1/4 models. Installation requires standard RC workshop tools and basic teardown of the rear end, and users should verify bearing fit before final assembly because the arm is sized for the larger inner bearing dimension stated above.

Packing includes

  • Rear swing arm - 1pcs
  • Bearing 8x16x5 - 2pcs

Original Name / Part No:

LOS264000

Compatible Models

  • LOSI-1/4 PROMOTO-MX MOTORCYCLE RTR, FXR-LOS06000
  • LOSI-1/4 PROMOTO-MX MOTORCYCLE RTR PRO CIRCUIT-LOS06002

Use this aluminum rear swing arm when you need a sturdier RC-scale replacement for LOSI Promoto-MX models; verify bearing choices and clearances during installation to match your setup and riding style.

Is this swing arm compatible with LOSI Promoto-MX RTR models?

Yes, it is designed for LOSI 1/4 PROMOTO-MX MOTORCYCLE RTR and PRO CIRCUIT models listed in the compatibility section.

What material is the swing arm made from?

The arm is machined from 7075 aluminum for greater stiffness compared to typical plastic parts.

Are the larger bearings included?

The product notes the arm is designed for larger inner bearings 16x8x5, while the packing list includes two bearings sized 8x16x5; check fitment and swap bearings if needed for the stated oversized dimension.

Do I need special tools to install this part?

No specialized tools are required beyond common RC workshop tools such as hex drivers and a bearing press or drift for bearing seating.

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