Aluminum 4mm ID, 1 inch Wheel Bushings (1 Pair)

These aluminum wheel bushings are used for the front wheels of SSP kits, to ride on 4mm shoulder bolt front axels. They can work great for many other bots and applications as well! With a nice shoulder to press your wheel hub against, these bushings ensure your wheels stay in line with your drive belts, gears or whatever else you use. 

CAD Model Here.
Buy shoulder bolts here.

See dimensions here, shown in inches [mm]

Weight: 2.7 grams per pair