Features 1、WEAR RESISTANT MATERIAL: Made of excellent steel material, the gear surface is treated with rustproof treatment, with strong wear resistance, corrosion resistance, good performance and long service life 2、SMOOTH TRANSMISSION: A more efficient drivetrain provides a smoother ride for smoother and more powerful mid drive gear transmission 3、SMOOTH AND CONVENIENT: Accurately machined, good machining makes the gears roll smoothly, comes with fixing screw holes, bring easy installation and simple operation, the package is equipped with machine screws 4、RC CAR ACCESSORIES: Provides good spare parts with improved gear meshing, the gears provide overdrive for the axles to make your RC car perform better 5、PERFECT REPLACEMENT: Surface treated to prevent rust, ideal replacement for old or damaged originals, suitable for ARRMA 1/7 1/8 series RC cars Item Type: Spool Gear Product Type: RC Accessories Material: Steel Colour: Black Number of Teeth: 29T Gear Diameter: Approx. 31mm / 1.22in Gear Width: Approx. 11mm / 0.43in Metric Spacing: M1.0 Gear Bore: Approx. 8mm / 0.31in For Arrma 1/7 1/8 series RC cars Suitable for Approx. 8mm / 0.31in diameter shaft Package List 1 x 29T Middle Transmission Gear 1 x Screw Shaft 2 x Set Screws