Setups
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Gearing
Stock gearing for the Hong Nor X5B, 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 Hong Nor X5B, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Hong Nor X5B?
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 X5B'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 X5B selected.
What is the internal ratio (transmission ratio) of the Hong Nor X5B?
The X5B 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 Hong Nor X5B?
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. Part numbers link to AMain.
- Front
- 50 wt
- Rear
- 40 wt
- Front
- 6 x 1.3mm
- Rear
- 6 x 1.3mm
What shock oil does the Hong Nor X5B come with?
Out of the box the X5B runs 50 wt front, 40 wt rear, on 6 x 1.3mm front, 6 x 1.3mm 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 Hong Nor X5B come with?
The kit springs are 5.3lb Yellow (#457-M) front, 3.8lb Yellow (#458-M) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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