Yeah Racing 4-Tec 2.0 alloy spur gear adapter

Coming from Yeah Racing and made for the Traxxas 4-Tec 2.0 is an aluminium spur gear adapter. A direct replacement for the standard steel part, the aluminium option part is a lot lighter, resulting in less rotational masses and thus quicker spool-up, better acceleration and more overall performance. The set includes the CNC machined adapter, a suitable spur gear, washers and mounting hardware and it is available in blue or black colour.

Source: Yeah Racing [yeahracing.com]