Ask Miles, our Setup AI that’s been trained on the SBX-825.
Setups
Gearing
Stock gearing for the Corally SBX-825, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 12T | 3.83 | 12.68 |
| 13T | 3.54 | 11.71 |
| 14T | 3.29 | 10.87 |
| 15T | 3.07 | 10.14 |
| 16T | 2.88 | 9.51 |
| 17T | 2.71 | 8.95 |
| 18T | 2.56 | 8.45 |
| 19T | 2.42 | 8.01 |
Shaded rows are the pinions most 1/8 4WD buggy setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Corally SBX-825, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Corally SBX-825?
It depends on your motor and the track. In the 1/8 4WD buggy class, racers gear by final drive ratio: 1800–2300 Kv near 10.06. On the SBX-825's stock 46T spur that is about 15T for 1800–2300 Kv. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the SBX-825 selected.
What is the internal ratio (transmission ratio) of the Corally SBX-825?
The SBX-825 has an internal ratio of 3.308:1. Final drive ratio = spur ÷ pinion × 3.308. With the stock 46T spur, a 12T pinion gives an FDR of 12.68 and a 19T gives 8.01.
How many teeth is the stock spur gear on the Corally SBX-825?
46 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 (Low grip). Part numbers link to AMain.
- Front
- Med #00180-627 →
- Rear
- Med #00180-287 →
- Front
- 6 x 1.3mm
- Rear
- 6 x 1.4mm
What springs does the Corally SBX-825 come with?
The kit springs are Med (#00180-627) front, Med (#00180-287) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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