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Promoto MX/SM Pro Swingarm

IP Report

Print Profile(1)

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X1 Carbon
P1P
P2S
A1 mini
P1S
X1E
H2S
X1
H2D Pro
H2C
A1
H2D
X2D
A2L

Promoto MX/SM Tough Setup 0.2
Promoto MX/SM Tough Setup 0.2
Designer
2.7 h
1 plate

Open in Bambu Studio
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11
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0
0
22
4
Released 

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Bambu Filaments
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Gray (12105) / Filament with Spool / 1kg

Description

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🏁 Losi Promoto MX / SM Performance Swingarm

 

 

Reinforced. Optimized. Thought out to the last detail.

 

This newly developed swingarm for the Losi Promoto MX & SM is not a standard spare part – it is a structural upgrade for ambitious riders.

 

✔ Compatible with original chain tensioner

Plug & Play – no adjustments necessary.

✔ Reinforced main structure

Optimized force line for maximum stiffness during acceleration, hard landings, and aggressive riding.

 

✔ Modified chain guide – constructive advantage

The chain guide has been specifically revised:

 

  • Recessed mounting in the swingarm
  • Reduced stress in the mounting area
  • Minimized risk of breakage on the swingarm
  • Defined breaking point on the chain guide

 

In extreme cases, the chain guide breaks, not the swingarm.

This protects your main component and reduces consequential damage.

 

👉 The matching chain guide is available separately on my MakerWorld page.

 

✔ Printed from PLA Tough+

High impact strength, clean dimensional accuracy, and strong layer adhesion for reliable performance.

 

Developed for:

  • MX Track
  • Supermoto conversions
  • Bash sessions
  • Performance builds

 

Aftermarket part – not an OEM Losi product.

RC model not included

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