Defiant Swingarm

Stop the Flex. Drop the Weight. Dominate the Trail.

The stock Surron swingarm was designed for 6kW. If you’ve upgraded to a 72V system or are pushing 15kW+, you’ve felt the "ghost steering" and rear-end flex that kills your confidence in corners.

The Defiant Emoto Swingarm is the ultimate chassis solution for the Surron Light Bee X. Engineered throughhundreds of hours of stress testing, our welded design eliminates lateral torsion while actually reducing unsprung weight compared to  alternatives.

Why Defiant Emoto?

• Industry-Leading Strength-to-Weight: We didn’t just make it stronger; we made it smarter. By utilizing aerospace-grade alloys and proprietary welding techniques, we’ve achieved a rigidity rating that outperforms CNC-only arms while staying lighter than stock.

• Zero-Flex Architecture: Engineered to handle the massive torque of high-output controllers (EBMX, Torp, ASI) without twisting.

• Optimized Geometry: Available in OEM Length for agility or +1.5"/+2.5" Extended Length for high-speed stability and wheelie control.

   

• Direct Fitment: Precision-matched for the Surron LBX frame with upgraded pivot bearings included.

• Eliminate rear-end flex on your Surron Light Bee X with the Defiant Emoto Swingarm. The lightest and strongest aftermarket swingarm for high-power 72V builds. Shop now.