This GPM 40Cr steel pinion is specified for the TEAM LOSI Micro-B 2WD Buggy and is engineered for reliable tooth engagement and extended component life. It uses a 2mm shaft bore and 0.5mm tooth spacing to match common micro motor pinions, enabling consistent meshing and reduced backlash when installed correctly. The straightforward geometry makes it suitable for precise gear alignment and routine maintenance in competitive or hobby environments.