Shop › Protek RC 48P Lightweight Hard Anodized Aluminum Pinion Gear (3.17mm Bore) Protek RC 48P Lightweight Hard Anodized Aluminum Pinion Gear (3.17mm Bore) $6.00 RC drift product available from DriftPDX: Protek RC 48P Lightweight Hard Anodized Aluminum Pinion Gear (3.17mm Bore). Add To Cart Added! RC drift product available from DriftPDX: Protek RC 48P Lightweight Hard Anodized Aluminum Pinion Gear (3.17mm Bore).