Setups
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Gearing
Stock gearing for the Kyosho Mini-Z MR-03, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 4T | 11.00 | 11.00 |
| 5T | 8.80 | 8.80 |
| 6T | 7.33 | 7.33 |
| 7T | 6.29 | 6.29 |
| 8T | 5.50 | 5.50 |
| 9T | 4.89 | 4.89 |
| 10T | 4.40 | 4.40 |
| 11T | 4.00 | 4.00 |
| 12T | 3.67 | 3.67 |
| 13T | 3.38 | 3.38 |
| 14T | 3.14 | 3.14 |
| 15T | 2.93 | 2.93 |
| 16T | 2.75 | 2.75 |
Shaded rows are the pinions most 1/24-1/28 2WD touring/gt setups run on the stock spur.
What pinion should I run?
Tell us your motor and track and get a starting pinion for the Kyosho Mini-Z MR-03, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the Kyosho Mini-Z MR-03?
It depends on your motor and the track. Racers in the 1/24-1/28 2WD touring/gt class run a 6–14 tooth pinion in most setups, usually on a 53T spur for a final drive ratio near 5.30. Hotter motors (lower turns, higher KV) take a smaller pinion; tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the Mini-Z MR-03 selected.
What is the internal ratio (transmission ratio) of the Kyosho Mini-Z MR-03?
The Mini-Z MR-03 has an internal ratio of 1:1. Final drive ratio = spur ÷ pinion × 1. With the stock 44T spur, a 4T pinion gives an FDR of 11.00 and a 16T gives 2.75.
How many teeth is the stock spur gear on the Kyosho Mini-Z MR-03?
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
- Med-hard - Orange
- Center
- Medium - Green
What springs does the Kyosho Mini-Z MR-03 come with?
The kit springs are Med-hard - Orange front, Medium - Green center. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.
Setup Help
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Setup App & Race Log
Your Kyosho Mini-Z MR-03 is in the RC Setup App
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