Fingertech Snap Hubs (Pair)
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Foam wheels are a good choice for combat robots because they help absorb impacts which could damage your motors.

With Snap hubs you can securely mount 


  • Anodized 6061 aluminum for high strength and low weight.
  • Custom washer with recess to prevent the 7/16" snap ring from coming off unintentionally.
  • Secured to motor with an 8-32 setscrew
  • Available with 3mm and 4mm shaft bore, but can be drilled out as big as 6.35mm (0.25in).
  • Lightweight (~6g for 0.5" wide & ~7g for 0.75" wide)