TKR4180 "M5" Hardened Steel Mod1 Pinion Gear w/5mm Bore (20T)

Optimize drivetrain performance and durability with the Tekno RC TKR4180 “M5” Hardened Steel Mod1 Pinion Gear (20T), engineered for high‑performance 1/8 scale electric vehicles and other MOD1 applications. Precision CNC machined from hardened steel, this gear is both strong and lightweight for efficient power transfer and quiet operation under racing and bashing conditions. The oversized M5 set screw delivers superior holding strength on the motor shaft, reducing the risk of stripping during installation or use. With a 5mm bore and standard MOD1 pitch, it is compatible with a wide range of Tekno platforms including the EB48 series (EB48, EB48.2, EB48.3, EB48SL), ET48 series (ET48, ET48.3), and SCT410 series (SCT410, SCT410.3), as well as any 1/8 scale vehicle requiring a MOD1 5mm pinion gear. Laser‑etched tooth markings make gear changes fast and precise for dialing in optimal speed and acceleration.