Robinson's Aluminum Pro pinions feature lightweight aluminum construction with
an added hard coating that produces extra strenght and less friction. These
pinions also feature a hollowed out core that reduces rotating mass for improv-
ed acceleration and deceleration. Available in 48 pitch from 12 to 35 tooth
sizes, and in 64 pitch in 16 to 47 tooth sizes.
1 48pitch pinion 33 teeth
1 4-40 set screw
This is the "Silencer Series" pinions.
update AXY 7/26/94
– If you need more information, use these Robinson Racing resources –