Arrma Safe-D5 Mod1 Pinion Gear Arrma Safe-D5 Mod1 Pinion Gears feature a "D" shaped hole that allows the motor shaft to key inside the pinion gear, eliminating the loss of drive and brakes if the set screws comes loose. This tough steel Pinion Gear is available in multiple tooth count options, allowing you to fine tune the gear ratio. Features: Strong and durable steel for long-lasting performance in extreme RC conditions Precision manufactured wide tooth profile for smooth operation 'D' shaped hole to match motor shaft profile so drive and brakes are not lost if the set-screw backs out Suits 5mm motor shaft diameter Precision manufactured threaded set-screw hole E-clip supplied for motor shaft pinion retention Includes: (1) Mod1 Safe-D Pinion Gear (1) Set Screw - M4 x 4mm (1) E-Clip - 3.2mm This product was added to our catalog on March 14, 2021

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Arrma Safe-D5 Steel Mod 0.8 Pinion Gears feature a D shaped hole that locks onto the motor shaft and helps to prevent the loss of drive and brakes if the set screw backs out. These gears are machined from steel for durability and fit 5mm motor shafts.  Features: Strong and durable steel for long-lasting performance in extreme RC conditions Precision manufactured wide tooth profile for smooth operation  'D' shaped hole to match motor shaft profile so drive and brakes are not lost if the set-screw backs out  Suits 5mm motor shaft diameter  Precision manufactured threaded set-screw hole  E-clip supplied for motor shaft pinion retention Includes: 0.8 Module Safe-D Pinion Gear (1) Set Screw - M4 x 4mm (1) E-Clip - 3.2mm This product was added to our catalog on March 23, 2021

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