ARRMA 1/10 BIG ROCK 4X4 3S BLX Brushless MT Black

Tower Stock# ARAC1606  •  Manufacturer Stock# ARA4312V3
Only manufacturer discounts can be applied to this product's purchase. Tower coupon codes may not be applied.
Notes from our tech department:


Chassis: Molded composite plastic, black in color, high sides reduce
dirt entry, hook and loop battery straps
Brushless Motor: BLX 3660 3200Kv, heatsink, four-pole, ARRMA Power
Module consists of motor, motor plate, slipper clutch and gear
ESC: ARRMA BLX100 Waterproof with IC5 battery connector (EC5
compatible) 12AWG battery wires, 3S LiPo capable, cooling fan,
6.0V BEC, two-stage LiPo cutoff, over voltage protection, three-
mode throttle profile (FWDREVERSEBRAKE) ARRMA Electronics
Module consists of ESC, Servo and Receiver
Radio: Spektrum SLT3, 3 channel with SLR300 receiver
Steering Servo: Spektrum SPMS651 metal gear, 101 oz-in (7.27 kg-cm)
of torque at 6V
Drive: Four wheel shaft with UJ slider driveshaft, 5050 torque split
Differentials: Metal straight cut gears, non-locking, filled with
10000cSt silicone oil
Shocks: Composite body, adjustable length geometry, filled with
500cSt silicone oil
Tires: dBoots Ragnarok 2.8 monster truck, 5.12 (130mm) diameter,
medium firmness inserts
Wheels: Black chrome 2.81 (71.5mm) bead diameter, 14mm hex
Body: Long crew cab trimmed and painted in blue metallic, license
plate detail, black chrome front and rear bumpers
Camber: Adjustable, camber refers to the angle of the
tops of the tires from vertical when viewed from front or behind
Caster: Adjustable, castertoe-in refers to the angle of the front
suspension when viewed from the side of the car in relation to
the chassis
Wheelie Bar: Height adjustable
Warranty: Two year limited warranty beginning at date of purchase


RTR ARRMA 110 scale Brushless Electric Powered, BIG ROCK CREW CAB
4x4 3S BLX Monster Truck with Painted Crew Cab Body, Motor, ESC,
Radio System, Multi Tool, 2mm & 2.5mm Hex Wrenches and Instruction


Battery: 2-3S Hardcase 35C LiPo at least 5000mAh wIC5 or EC5
connector, or 6-8 Cell NiMH, battery must have the following
dimensions or smaller 6.50 x 2.01 x 1.89 (165 x 51 x 48mm)
Battery Charger: To match selected battery
AA Batteries: Four for transmitter
LiPo Charging Bag (if using LiPo battery) and track equipment


Length: 20.24 (514mm)
Wheelbase: 12.87 (327mm)
Ride Height: 2.17 (55mm)
Front Width: 12.72 (323mm)
Rear Width: 12.91 (328mm)
Front and Rear Track: 14.02 in (356mm)
Height: 7.91 (201mm)
Weight: 6lbs 4oz (2.84kg)
Maximum Battery Dimensions: 6.5 x 2.01 x 1.89 (165 x 51 x 48mm)
Shock Oil Viscosity: 500cSt
Diff Oil Viscosity: 10000cSt
Diff Crown Gear Specification: 37T 1.35m
Diff Pinion Gear Specification: 13T 1.35m
Internal Gear Ratio: 2.85
Internal Gear Material: Plastic
Spur Gear: 57T plastic, 0.8m pitch
Pinion Gear: 15T metal, 0.8m pitch
Standard Final Gear Ratio: 10.83
Final Gear Ratio Range: 6.25 - 10.83
Hardware Type: Hex head
Rear Spring Rate: 0.84Nmm
Maximum Motor Size: 3668
Length: 17.2 (450mm)
Width: 6.3 (160mm)
Height: 4.49 (114mm)


For replacement ball bearings use:
Qty. Size Location Order Qty. Stock numbers for ball
2 12x18x4mm Steering Blocks 1 bearings
2 6x12x4mm Steering Blocks 1 are located in the
2 12x18x4mm Rear Hubs 1 Optional
2 6x12x4mm Rear Hubs 1 Accessory Section
3 10x15x4mm Slipper Clutch 2
2 10x15x4mm Fr Diff Input Gear 2
2 12x18x4mm Front Diff 1
2 10x15x4mm Rear Diff Input Gear 2
2 12x18x4mm Rear Diff 1

jxs 073020



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