Castle Creations Mod 1.5 Pinion Gear - 18 Tooth, 8mm Bore for 1/5 & 1/6 Scale

Overview

The Castle Creations Mod 1.5 Pinion Gear (010-0065-26) is a precision-machined pinion designed for 1/5 and 1/6 scale RC vehicles running large-scale brushless motors. Built with a Mod 1.5 tooth profile, 18-tooth count, and 8mm bore, this pinion delivers strong, reliable power transfer in demanding large-scale applications.

CNC-machined for precision and durability, the Mod 1.5 pinion features the largest possible Allen-head set screw for a secure, slip-free grip on the motor shaft. The 8mm bore fits the standard motor shafts used on most large-scale brushless motors, including Castle's 1717 and similar 4-pole motors.

For drivers running 1/5 or 1/6 scale rigs like the Arrma Kraton 8S, Outcast 8S, or Traxxas X-Maxx, the Mod 1.5 pinion is a proven, durable choice that holds up to high-torque, high-RPM driving.

Key Features

• Mod 1.5 tooth profile
• 18-tooth count
• 8mm bore for large-scale motor shafts
• CNC-machined for precision
• Oversized Allen-head set screw for secure grip
• Genuine Castle Creations replacement part

Performance Benefits

• Reliable power transfer in high-torque large-scale applications
• Hardened tooth profile resists wear
• Secure shaft grip prevents slipping under load
• Precision machining for smooth, quiet operation
• Compatible with Castle 1717 and similar 8mm shaft motors

Usage Notes

• Designed for 1/5 and 1/6 scale RC vehicles
• Compatible vehicles: Arrma Kraton 8S, Arrma Outcast 8S, Arrma Notorious 8S, Traxxas X-Maxx
• Verify spur gear matches Mod 1.5 (1.5 module)
• Confirm motor shaft is 8mm before installation
• Use thread locker on the set screw for high-vibration applications
• Pair with appropriate spur gear for desired final drive ratio

Technical Specs

• Brand: Castle Creations
• Pitch: Mod 1.5
• Tooth Count: 18T
• Bore: 8mm
• Material: CNC-machined steel/aluminum
• Part Number: 010-0065-26

What's Included

• (1) Castle Creations Mod 1.5, 18T, 8mm bore pinion gear

Summary

The Castle Mod 1.5, 18T, 8mm pinion is a durable, precision-machined gear for 1/5 and 1/6 scale electric RC vehicles. CNC quality, oversized set screw, and Castle reliability make it a dependable upgrade or replacement for any large-scale build.