Castle Creations Mod 1.5 Pinion Gear - 16 Tooth, 8mm Bore for 1/5 & 1/6 Scale

Overview

The Castle Creations Mod 1.5 Pinion Gear (010-0065-25) 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, 16-tooth count, and 8mm bore, this pinion delivers strong torque-focused gearing for 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 standard motor shafts used on most large-scale brushless motors, including Castle's 1717 and similar 4-pole motors.

The 16T size provides a torque-focused gear ratio compared to higher-tooth-count pinions, making it ideal for heavy 1/5 and 1/6 scale rigs that prioritize pulling power over outright top speed.

Key Features

• Mod 1.5 tooth profile
• 16-tooth count for torque-focused gearing
• 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

• Torque-focused gear ratio for heavy vehicles
• Improved acceleration over higher-tooth pinions
• Hardened tooth profile resists wear
• Secure shaft grip prevents slipping under load
• 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
• Ideal for heavy or technical applications where torque matters
• 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

Technical Specs

• Brand: Castle Creations
• Pitch: Mod 1.5
• Tooth Count: 16T
• Bore: 8mm
• Material: CNC-machined steel/aluminum
• Part Number: 010-0065-25

What's Included

• (1) Castle Creations Mod 1.5, 16T, 8mm bore pinion gear

Summary

The Castle Mod 1.5, 16T, 8mm pinion is the torque-focused choice for 1/5 and 1/6 scale electric RC. CNC quality, oversized set screw, and Castle reliability make it the perfect gear for heavy large-scale builds.