ARRMA Kraton 1/5 Setups

Off-road•Truck•1/5 scale•4WD

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Setups

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Gearing

Stock gearing for the ARRMA Kraton 1/5, with common pinions and their ratios.

Stock spur

47T

Internal ratio

3.25:1

Class

1/5 4WD truck

No class gearing data yet

Pinion	Spur ÷ pinion	FDR
14T	3.36	10.91
15T	3.13	10.18
16T	2.94	9.55
17T	2.76	8.99
18T	2.61	8.49
19T	2.47	8.04
20T	2.35	7.64
21T	2.24	7.27
22T	2.14	6.94
23T	2.04	6.64
24T	1.96	6.36

What pinion should I run?

Tell us your motor and track and get a starting pinion for the ARRMA Kraton 1/5, with the range racers in the class run.

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What pinion gear should I use on the ARRMA Kraton 1/5?

It depends on your motor and the track. A hotter motor (lower turns, higher KV) takes a smaller pinion; a tight track wants a lower gear than an open one. Start near the middle of the pinions the Kraton 1/5 shipped with, run a few minutes, and check motor temperature before going up a tooth. The So Dialed Pinion Recommender gives a starting pinion for your motor where we have class data.

What is the internal ratio (transmission ratio) of the ARRMA Kraton 1/5?

The Kraton 1/5 has an internal ratio of 3.25:1. Final drive ratio = spur ÷ pinion × 3.25. With the stock 47T spur, a 14T pinion gives an FDR of 10.91 and a 24T gives 6.36.