All Metal Transmission Gear with Motor Gear Protective Cover

CNC machined aluminum protective cover Helps keep dirt and debris out of your spur gear and pinion for a quiet and efficient drivetrain 20T 48P steel sprocket Spur Gear 87T 48P Pinion Spur Ratio 435 1 48 pitch wide steel internal gears Internal Gear Ratio 261 Final Gear Ratio 11311 Compatible with pinions and spur gears from other brands Steel ball bearings for durability SCX10 Spectra Adjustment Size Height 69mm Length 65mm Width 75mm Output shaft length 6mm Output shaft diameter 48mm Output shaft hole 24mm Pinion hole 32mm Weight 193g Color BlackTitaniumSilver what is included 1x48P allmetal transmission 1 x 20T sprocket