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 sold out RC drift product available from DriftPDX: Protek RC 48P Lightweight Hard Anodized Aluminum Pinion Gear (3.17mm Bore). Sold Out Added! RC drift product available from DriftPDX: Protek RC 48P Lightweight Hard Anodized Aluminum Pinion Gear (3.17mm Bore).