These machined aluminum narrow wheel hubs install directly to the RC4WD Ignitor beadlock wheels to provide a more narrow stance than the standard hubs supplied with the wheels.  Sold in sets of 2, you would need to purchase 2 of these if updating an entire truck. 

Specifications:

• CNC Machined from Billet Aluminum
• Black Anodized Finish 
• Fit 12mm STEPPED Hex (Stock "stepped Axial hex will fit without modifications)
• OD: 1.06in / 27.0mm
• Width: 0.73in / 18.6mm
• Each Weight: 0.32oz / 9.0g