21T Mod1 Safe-D8 Pinion Gear

The Arrma 21T Mod1 Safe-D8 Pinion Gear (ARA311041) is a tough steel Mod 1 gear built for demanding RC conditions. Precision manufacturing and a wide tooth profile promote smooth, consistent mesh, while the Safe-D8 D-shaped bore matches 8mm motor shafts to help maintain drive and braking even if the set screw loosens. An included E-clip supports additional pinion retention.

Features

• Strong, 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 8mm motor shaft diameter
• Precision-manufactured threaded set-screw hole
• E-clip supplied for motor shaft pinion retention

What’s Included

• 1 x 21T Mod1 Safe-D Pinion Gear (8mm Motor Shaft)
• 1 x Set Screw – M4 x 4mm
• 1 x E-Clip – 5.6mm