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Setups
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Gearing
Stock gearing for the MST TCR-FF, with common pinions and their ratios.
| Pinion | Spur ÷ pinion | FDR |
|---|---|---|
| 36T | 2.08 | 2.08 |
| 37T | 2.03 | 2.03 |
| 38T | 1.97 | 1.97 |
| 39T | 1.92 | 1.92 |
| 40T | 1.88 | 1.88 |
| 41T | 1.83 | 1.83 |
| 42T | 1.79 | 1.79 |
| 43T | 1.74 | 1.74 |
| 44T | 1.70 | 1.70 |
| 45T | 1.67 | 1.67 |
| 46T | 1.63 | 1.63 |
| 47T | 1.60 | 1.60 |
Shaded rows are the pinions most 1/10 FWD 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 MST TCR-FF, with the range racers in the class run.
Get a recommendation →Shop pinion gears at AMain →What pinion gear should I use on the MST TCR-FF?
It depends on your motor and the track. In the 1/10 FWD touring/gt class, racers gear by final drive ratio: 17.5T near 4.51. On the TCR-FF's stock 75T spur that is about 17T for 17.5T. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the TCR-FF selected.
What is the internal ratio (transmission ratio) of the MST TCR-FF?
The TCR-FF has an internal ratio of 1:1. Final drive ratio = spur ÷ pinion × 1. With the stock 75T spur, a 36T pinion gives an FDR of 2.08 and a 47T gives 1.60.
How many teeth is the stock spur gear on the MST TCR-FF?
75 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
- Silver
- Rear
- Green
What springs does the MST TCR-FF come with?
The kit springs are Silver front, Green rear. 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 MST TCR-FF is in the RC Setup App
Save every setup change you make to your MST TCR-FF, get AI tuning answers for that exact car, and log your races — at the track or back in the pits.
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