VehiclesArrma Talion 6S EXB 1/7

Arrma Talion 6S EXB 1/7

1/7 scale · truggy · ARA7707V6

Top speed: 54mphstock gearing
Speed set: 83mphincluded in the box
Final drive: 14.33:1
Tire: 146mm

Open in Top Speedsourced

Arrma Talion 6S EXB 1/7 — Photo: Horizon Hobby

Specifications

Last modified Sep 23, 2026

Spec	Value	Basis
Drivetrain
Pinion	15TStock	Stock
Spur	50TStock	Stock
Transmission & axle	4.30:1Derived	Derived
Spur ÷ pinion	3.333:1Calculated	Calculated
Final drive	14.33:1Stock	Stock
Speed gearing, in the box	23T / 50Tpinion / spurStock	Stock
Final drive, speed gearing	9.35:1Stock	Stock
Wheels & tires
Tire diameter	146mmStock	Stock
Rollout	32.0mm per motor turnCalculated	Calculated
Power
Motor	2050KVStock	Stock
Motor shaft	5 mmStock	Stock
Battery	Up to 6SLiPoStock	Stock
Performance
Theoretical top speed, stock gearing	54.3mph on 6SCalculated	Calculated
Theoretical top speed, speed gearing	83.3mph on 6SCalculated	Calculated
Motor speed	45,510rpm, no loadCalculated	Calculated
Advertised top speed	75mphMaker's claim	Maker's claim
Vehicle
Part number	ARA7707V6
Scale	1/7
Class	Truggy

Stock is as the vehicle ships. Calculated is worked from the stock figures on this page rather than stored beside them, so the two cannot drift apart. Derived is worked out from gear tooth counts the maker publishes rather than printed as a ratio; the notes below say how. The top speed is kinematic: an ideal no-load RPM with no slip and no loss under load, so a real car is slower. Speed gearing is the taller set that ships in the box but is not fitted; swapping it in is the owner's job, and the car runs hotter on it. The maker advertises 75 mph, which is their own claim on their own conditions.

Gearing parts

Pinion and spur parts for the Arrma Talion 6S EXB 1/7: fitted, and optional gearing supplied in the box
Component	Teeth	Pitch	Bore	Part number
Fitted at the factory
Pinion	15T	Mod 1	5 mm	ARA310962 (opens in a new tab)
Spur	50T	Mod 1	Not applicable	ARA310978 (opens in a new tab)
In the box, not fitted
Speed pinion	23T	Mod 1	5 mm	ARA310970 (opens in a new tab)

Tooth counts are the ones in the specifications above. Pitch is given as metric module (Mod 1, Mod 0.8) or diametral pitch (32P, 48P). They are different standards and are not interchangeable, even where the numbers look close. Bore is the pinion’s hole, listed separately from the motor shaft (5 mm on the stock motor). Gearing in the box is supplied, not fitted: the fitted set is what the figures and the calculators use. Linked part numbers go to the maker's or official distributor's page for that part.

How these numbers were settled

The 1/7 Talion 6S EXB (ARA7707V6), a larger and separate SKU from the 1/8 Talion 6S EXB (ARA8707).

It runs a Spektrum Firma 4074 2050Kv motor and the Firma 150A Smart ESC V2 rated for 3S to 6S.
Horizon's spec table prints Pinion 15T, 23T and Spur 50T, and the feature list says bashing and speed gearing are both included: the 15T is fitted and the 23T is the speed pinion.
The transmission and axle ratio is not printed; the standard-parts list names the GP4 43T spiral ring gear and 10T input gear, 43/10 = 4.3.
Final drive is 50/15 x 4.3 = 14.33 stock and 50/23 x 4.3 = 9.35 with the speed pinion.
The 75+ mph claim needs the speed pinion: stock computes to about 54 mph at 3.7V per cell, the speed set to about 83 mph.
The stock dBoots Katar T Belted 6S tire (ARA550097) prints an overall diameter of 5.75 in (146mm).

Documents

ManualInstruction manual (Horizon PDF) (opens in a new tab)Kit overview (optional 23T speed pinion)
Exploded viewTechnical pack with exploded view (Horizon PDF) (opens in a new tab)

Sources

Every figure on this page traces to one of these. Where they disagreed, the note above says which was used and why.