Shop › Protek RC Lightweight Steel 48P Pinion Gear (3.17mm Bore) (28T) Protek RC Lightweight Steel 48P Pinion Gear (3.17mm Bore) (28T) $5.00 RC drift product available from DriftPDX: Protek RC Lightweight Steel 48P Pinion Gear (3.17mm Bore) (28T). Add To Cart Added! RC drift product available from DriftPDX: Protek RC Lightweight Steel 48P Pinion Gear (3.17mm Bore) (28T).