This product is a precision machined 48 pitch aluminum pinion gear designed for 1/10 scale electric RC vehicles. It features lightweight construction to reduce rotating mass while maintaining strength for consistent power transfer. The hard anodized finish improves durability and helps resist wear during high speed operation. A precision 3.17 mm bore ensures a secure fit on standard motor shafts for smooth and efficient drivetrain performance. It is ideal for fine tuning gear ratios to balance acceleration and top speed.