Optional aluminum idler gear for many Traxxas vehicles. This idler gear works on these Traxxas vehicles as of the date of writing: 2WD Slash Bandit, Rad 2, Rustler EP, Stampede EP, Nitro Street SRT.

Comes with one steel idler gear. The following is required to install:
Two 5 x 11mm bearings (GPM9101)
One TRA3195X top drive gear.

This will work on the Proline Transmission PRO609200
This idler gear is not for use with the original steel top gear
#3195 (per Traxxas). Use the TRA3195X top drive gear for best results.