This is a Hot Racng Traxxas TRX-4 5mm Wide Track spring Steel Stub Axle, to gain clearance for larger front tires. Plus, 10mm track width increase makes the truck more sure footed in Rough terrain .

CNC Spring steel and Aluminum spacer and Nut.
Increased stability
Increased steering clearance
Increased tire selections
5mm anodized aluminum extension spacers
5mm Spring Steel extension axles
Direct Fit, no modification needed


Includes

(2) Nut, M4 blue Aluminum Locknuts
(2) Blue AluminumWide Track Spacers
(2) Spring Steel 5mm Wide Track Axles