Overview
The Tekno RC line of M5 pinion gears stands out from the rest, and this 29-tooth MOD1 gear is built for 1/8 electric and any other MOD1 pinion application. It slides onto a 5mm motor shaft and locks down with an M5 set screw for a secure, high-torque hold.
Tekno RC offers this series from 11T all the way up to 30T, so you can find the right gear ratio for racing or for insane top-speed runs. Keeping a few tooth counts in the pit box lets you retune your drivetrain for any track layout in minutes.
Key Features
- 29-tooth MOD1 pinion gear
- 5mm bore sized for standard 1/8 electric motor shafts
- M5 set screw for a positive grip on the motor shaft
- Part of a complete 11T to 30T MOD1 range for fine ratio steps
Performance Benefits
- Lets you tune gear ratio for punch, top speed or run time
- Clean tooth form helps the gear mesh run smooth and quiet
- Larger M5 set screw resists stripping under hard launches
- One-tooth steps make small, repeatable gearing changes easy
Usage Notes
- Pair only with MOD1 spur gears; MOD1 and MOD 0.8 are not interchangeable
- 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
- Check mesh and gear temperature after the first run with a new ratio
Technical Specs
- Brand: Tekno RC
- Item No.: TKR4189
- Tooth Count: 29T
- Pitch: MOD1
- Bore: 5mm
- Hardware: M5 set screw
- Country of Origin: Taiwan
What's Included
- (1) Tekno RC 29T MOD1 pinion gear with M5 set screw
Fitment
Compatible RC vehicles: 1/8 electric buggies, truggies and other electric RC vehicles that use MOD1 pinion gearing with a 5mm motor shaft. Confirm your vehicle runs a MOD1 spur gear before ordering.
Summary
- 29T MOD1 pinion for 1/8 electric and other MOD1 setups
- 5mm bore with an M5 set screw for a solid hold
- Part of Tekno RC's 11T to 30T MOD1 pinion range
- A simple, effective way to dial in your gear ratio
