With this caterpillar set you can run your crawler smoothly either on sand or snow surfaces. The conversion kit comes with 2 different pairs of caterpillar which specialize on sand or snow. The alloy parts were made of 6061 in maintenance free design. If you're driving over soft surface, it is recommended that you get 2 pairs for front and back. For hard sand surfaces, install only on the rear wheel is sufficient. Measurement: Height: 85mm Length: 148mm This unit requires to purchase different adapters to suit for different crawlers:
For SCX10 NEED
XS-SCX22123 Xtra Speed Aluminum Front Hub With Hex Adapter For AXIAL SCX10
XS-SCX22124 Xtra Speed Aluminum Rear Hub With Hex Adapter For AXIAL SCX10
For Wraith NEED
Front Hub Conversion TOP23111 Front Hub Conversion for #80133
Rear Hub Conversion TOP23112 Rear Hub Conversion for #80133