RC10 B84/D

Team Associated RC10 B84/D Setups

Off-roadBuggy1/10 scale4WD

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Ej Nickles
My Base Setup
1
Track
Trains N Lanes
Indoor Carpet
Medium/High grip
Date
Apr 22, 2026
Vin Manchanda
Team Associated
T&L Carpet Setup
2
Track
Trains N Lanes
Indoor Carpet
Medium grip
Date
Feb 21, 2026
Vin Manchanda
Team Associated
Rhythm RC Carpet Setup
Track
Rhythm RC
Indoor Carpet
Medium grip
Event
Clinic 2/26
Feb 21, 2026
Joel D
So Dialed
B84 Carpet Base Setup
1
5
Track
Kit Setup
Indoor Carpet
Medium grip
Date
Jul 14, 2025

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Gearing

Stock gearing for the Team Associated RC10 B84/D, with common pinions and their ratios.

Stock spur
78T
Internal ratio
2.5:1
Typical pinion
≤6T ≈ 18T · 7.5–8.5T ≈ 20T · 13.5T ≈ 25T
Class medians on the stock spur. For your motor and track →
PinionSpur ÷ pinionFDR
16T4.8812.19
17T4.5911.47
18T4.3310.83
19T4.1110.26
20T3.909.75
21T3.719.29
22T3.558.86
23T3.398.48
24T3.258.13
25T3.127.80
26T3.007.50
27T2.897.22
28T2.796.96

Shaded rows are the pinions most 1/10 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 Team Associated RC10 B84/D, with the range racers in the class run.

Get a recommendation →Shop pinion gears at AMain →

What pinion gear should I use on the Team Associated RC10 B84/D?

It depends on your motor and the track. In the 1/10 4WD buggy class, racers gear by final drive ratio: 6T and below near 10.66, 7.5–8.5T near 10.00, 13.5T near 7.95. On the RC10 B84/D's stock 78T spur that is about 18T for 6T and below, 20T for 7.5–8.5T, 25T for 13.5T. Tight tracks gear down, open tracks gear up. For a starting pinion matched to your motor, use the So Dialed Pinion Recommender with the RC10 B84/D selected.

What is the internal ratio (transmission ratio) of the Team Associated RC10 B84/D?

The RC10 B84/D has an internal ratio of 2.5:1. Final drive ratio = spur ÷ pinion × 2.5. With the stock 78T spur, a 16T pinion gives an FDR of 12.19 and a 28T gives 6.96.

How many teeth is the stock spur gear on the Team Associated RC10 B84/D?

78 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 (Dirt). Part numbers link to AMain.

Shock oil
Front
35 wt
Rear
30 wt
Team Associated oil
Springs
Front
4.0lb Red #91944
Rear
2.3lb Yellow #91951
Pistons
Front
2 x 1.7mm
Rear
2 x 1.9mm
Diff fluid
Front
15,000 cst
Center
200,000 cst
Rear
15,000 cst

What shock oil does the Team Associated RC10 B84/D come with?

Out of the box the RC10 B84/D runs 35 wt front, 30 wt rear (Team Associated oil), on 2 x 1.7mm front, 2 x 1.9mm 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 Team Associated RC10 B84/D come with?

The kit springs are 4.0lb Red (#91944) front, 2.3lb Yellow (#91951) rear. Stiffer springs suit high grip and big jumps; softer springs add grip on slick or bumpy tracks.

What diff fluid does the Team Associated RC10 B84/D come with?

The kit diff fluid is 15,000 cst front, 200,000 cst center, 15,000 cst rear. Thicker front adds steering on power; thicker center sends more drive rearward; thicker rear stabilizes the car under throttle.

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