Overview
This is the Tekno RC 25-tooth MOD 0.8 (32 pitch) pinion gear with a 5mm bore. It is made from hardened steel and carries an etched tooth count on the face, so you can grab the right gear out of the pit box without squinting at tiny stamped numbers.
Pinion choice is the quickest way to change how a vehicle delivers power, and 25 teeth is one of the taller gears in the range for chasing speed. Keep a few neighbouring tooth counts on hand and you can retune for a tight indoor layout or a wide-open outdoor track in minutes.
Key Features
- 25-tooth MOD 0.8 (32 pitch) pinion gear
- Hardened steel construction
- 5mm bore for standard large-shaft electric motors
- Etched tooth count for fast identification
Performance Benefits
- Hardened steel resists wear and holds its tooth form under power
- Finer 32 pitch teeth mesh smoothly and run quietly
- Taller gearing raises top speed on fast, open layouts
- One-tooth steps make small, repeatable gearing changes easy
Usage Notes
- Pair only with MOD 0.8 / 32 pitch spur gears
- Set gear mesh with a slip of paper between pinion and spur, then tighten
- Seat the set screw on the flat of the motor shaft and use thread lock
- Watch motor and gear temperatures when stepping up to taller gearing
Technical Specs
- Brand: Tekno RC
- Item No.: TKR4285
- Tooth Count: 25T
- Pitch: MOD 0.8 (32 pitch)
- Bore: 5mm
- Material: Hardened steel
- Marking: Etched tooth count
- Country of Origin: Taiwan
What's Included
- (1) Tekno RC 25T MOD 0.8 pinion gear
Fitment
Compatible RC vehicles: Any electric RC vehicle running MOD 0.8 (32 pitch) gearing with a 5mm motor shaft, including 1/8 and 1/10 scale buggies, truggies and short course trucks. Confirm your spur gear pitch and motor shaft diameter before ordering.
Summary
- 25T MOD 0.8 (32 pitch) hardened steel pinion
- 5mm bore for standard large-shaft motors
- Etched tooth count for quick pit-box identification
- An easy, affordable way to fine-tune your gearing
