Ask Miles, our Setup AI that’s been trained on the SCT410.3.
Setups
Gearing
Stock gearing for the Tekno SCT410.3, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 13T | 3.38 | 13.54 |
| 14T | 3.14 | 12.57 |
| 15T | 2.93 | 11.73 |
| 16T | 2.75 | 11.00 |
| 17T | 2.59 | 10.35 |
| 18T | 2.44 | 9.78 |
| 19T | 2.32 | 9.26 |
| 20T | 2.20 | 8.80 |
Shaded rows are the pinions most 1/10 4WD short course truck setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Tekno SCT410.3, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Tekno SCT410.3?
It depends on your motor and the track. In the 1/10 4WD short course truck class, racers gear by final drive ratio: 4000 Kv and up near 11.00. On the SCT410.3's stock 44T spur that is about 16T for 4000 Kv and up. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the SCT410.3 selected.
What is the internal ratio (transmission ratio) of the Tekno SCT410.3?
The SCT410.3 has an internal ratio of 4:1. Final drive ratio = spur ÷ pinion × 4. With the stock 44T spur, a 13T pinion gives an FDR of 13.54 and a 20T gives 8.80.
How many teeth is the stock spur gear on the Tekno SCT410.3?
44 teeth. Changing the spur moves every pinion's ratio at once; most racers leave the spur and tune with the pinion.
Kit setup
Kit shock setup. Part numbers link to AMain.
- Front
- 350 cst
- Rear
- 200 cst
- Front
- 7,000 cst
- Center
- 7,000 cst
- Rear
- 5,000 cst
What shock oil does the Tekno SCT410.3 come with?
Out of the box the SCT410.3 runs 350 cst front, 200 cst rear (Tekno oil), on 10 x 1.2mm (#6008) front, 10 x 1.2mm (#6008) rear pistons. That is the kit setup; you will need to adjust it for your track conditions. The RC Setup App can help dial it in.
What springs does the Tekno SCT410.3 come with?
The kit springs are Green (#6036) front, Black (#6043) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
What diff fluid does the Tekno SCT410.3 come with?
The kit diff fluid is 7,000 cst front, 7,000 cst center, 5,000 cst rear. Thicker front adds steering on power; thicker center sends more drive rearward; thicker rear stabilizes the car under throttle.
Setup Help
All Short Course Trucks →
Free to start · iOS & Android
Setup App & Race Log
Your Tekno SCT410.3 is in the RC Setup App
Save every setup change you make to your Tekno SCT410.3, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.
- Setup Tracking
- AI Mechanic answers
- Find & Share Setups
- Race Log
- Gear Ratio Calculator
- Free to use
