pinion size for my spec?

[richglanzav 8]

hey guys need a little idea what to run. its an xv-01 with absima 14x2 brushed motor. also has slipper clutch with 77t spur 48dp. any advice on what pinion to run on that with a fairly highly strung brushed motor?

[CMshooter 167]

Depends on how you are using it.  As a road car or a Rally on short tracks that you have to run with it?  77/30 would be 6.5 final drive, the same as my FZ02 Rally came stock with a 14 turn brushed.