The BIG ROCK gets BIGGER

Substance and Style

Built for Bashing

Updated Spektrum Electronics

Under the Hood

Light the Way

Specifications

ARRMA Part Number
ARA7612T1
ARA7612T2
ARA7612T3
Vehicle Name
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Gunmetal
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Red
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR White
SCALE
1/7
1/7
1/7
MAX SPEED POSSIBLE
65+mph / 104+km/h
65+mph / 104+km/h
65+mph / 104+km/h
POWER TYPE
Brushless
Brushless
Brushless
BUILD STATUS
RTR
RTR
RTR
Saleable Part #
ARA7612T1
ARA7612T2
ARA7612T3
BUILD CONFIGURATION OPTIONS
Mid Motor
Mid Motor
Mid Motor
DRIVE TYPE
4WD
4WD
4WD
VEHICLE TYPE
Monster Truck
Monster Truck
Monster Truck
SURFACE
Off-road
Off-road
Off-road
LENGTH
625mm / 24.61"
625mm / 24.61"
625mm / 24.61"
WHEELBASE
422mm / 16.61"
422mm / 16.61"
422mm / 16.61"
RIDE HEIGHT
68mm / 2.68"
68mm / 2.68"
68mm / 2.68"
FRONT WIDTH
465mm / 18.31"
465mm / 18.31"
465mm / 18.31"
REAR WIDTH
465mm / 18.31"
465mm / 18.31"
465mm / 18.31"
HEIGHT
255mm / 10.04"
255mm / 10.04"
255mm / 10.04"
NUMBER OF DIFFERENTIALS
3
3
3
WEIGHT (NO BATTERY)
6.5kg / 14lbs 5oz
6.5kg / 14lbs 5oz
6.5kg / 14lbs 5oz
BATTERY RECOMMENDATIONS
4S or 6S Lipo (Hard or soft-case) within dimensions 158 x 48 x 70mm or 6.22 x 1.89 x 2.76 inches. IC5 connector.
4S or 6S Lipo (Hard or soft-case) within dimensions 158 x 48 x 70mm or 6.22 x 1.89 x 2.76 inches. IC5 connector.
4S or 6S Lipo (Hard or soft-case) within dimensions 158 x 48 x 70mm or 6.22 x 1.89 x 2.76 inches. IC5 connector.
WARRANTY LEVEL
2 Year Limited
2 Year Limited
2 Year Limited
ARRMA Part Number
ARA7612T1
ARA7612T2
ARA7612T3
Vehicle Name
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Gunmetal
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Red
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR White
BODY LENGTH
612mm / 24.09"
612mm / 24.09"
612mm / 24.09"
BODY WIDTH
232mm / 9.13"
232mm / 9.13"
232mm / 9.13"
BODY HEIGHT
157mm / 6.18"
157mm / 6.18"
157mm / 6.18"
FRONT SPRING RATE
1.21N/mm
1.21N/mm
1.21N/mm
REAR SPRING RATE
0.97N/mm
0.97N/mm
0.97N/mm
CAPTURED HINGEPINS
Yes
Yes
Yes
TURNBUCKLES/FIXED LINKS
Turnbuckles
Turnbuckles
Turnbuckles
HARDWARE TYPE
Hex Head
Hex Head
Hex Head
LOCKING DIFFS
No
No
No
DIFFERENTIAL TYPE
Gear
Gear
Gear
STANDARD SHOCK OIL (Viscosity)
1300cSt
1300cSt
1300cSt
STANDARD DIFF OIL (Viscosity)
F:80k, C:100k, R:80kcSt
F:80k, C:100k, R:80kcSt
F:80k, C:100k, R:80kcSt
STANDARD SHOCK OIL (Type)
Silicone
Silicone
Silicone
STANDARD DIFF OIL (Type)
Silicone
Silicone
Silicone
DIFFERENTIAL CROWN GEAR SPECIFICIATION
43T 0.9m
43T 0.9m
43T 0.9m
DIFFERENTIAL PINION GEAR SPECIFICIATION
10T 0.9m
10T 0.9m
10T 0.9m
INTERNAL GEAR RATIO
4.3
4.3
4.3
INTERNAL GEAR MATERIAL
Metal
Metal
Metal
FITTED SPUR SIZE
50Tooth
50Tooth
50Tooth
FITTED SPUR MATERIAL
Metal
Metal
Metal
FITTED PINION GEAR SIZE
13Tooth
13Tooth
13Tooth
FITTED PINION MATERIAL
Metal
Metal
Metal
EXTRA SPEED PINION INCLUDED
16 Tooth
16 Tooth
16 Tooth
PINION AND SPUR TOOTH PITCH
1m
1m
1m
STANDARD FINAL GEAR RATIO
16.54
16.54
16.54
FINAL GEAR RATIO RANGE
9.77 - 17.92
9.77 - 17.92
9.77 - 17.92
TIRES INCLUDED
dBoots RAGNAROCK V2
dBoots RAGNAROCK V2
dBoots RAGNAROCK V2
TIRE DIAMETER
162mm / 6.38"
162mm / 6.38"
162mm / 6.38"
TIRE INSERT TYPE
Medium
Medium
Medium
DRIVESHAFT TYPE
CVD Front/Dogbone Rear
CVD Front/Dogbone Rear
CVD Front/Dogbone Rear
WHEEL BEAD DIAMETER
97mm / 3.82"
97mm / 3.82"
97mm / 3.82"
WHEEL HEX SIZE
17mm
17mm
17mm
WHEEL COLOR/FINISH
Black
Black
Black
MOUNTED TIRES
Yes
Yes
Yes
TIRE ATTACHMENT METHOD
Glued
Glued
Glued
SERVO HORN MATERIAL
Metal
Metal
Metal
SERVO SPLINE SIZE
25T
25T
25T
BATTERY MAX DIMENSIONS
158x48x70mm / 6.22x1.89x2.76"
158x48x70mm / 6.22x1.89x2.76"
158x48x70mm / 6.22x1.89x2.76"
CHASSIS MATERIAL
3mm Plate, 6061-T6 Aluminum
3mm Plate, 6061-T6 Aluminum
3mm Plate, 6061-T6 Aluminum
TRIMMED BODY
Yes
Yes
Yes
BODY-ON BATTERY ACCESS
No
No
No
BODY PIN RETAINERS
Yes
Yes
Yes
TORQUE SPLIT
50/50
50/50
50/50
MODEL PRODUCTION YEAR
2023
2023
2023
ARRMA Part Number
ARA7612T1
ARA7612T2
ARA7612T3
Vehicle Name
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Gunmetal
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Red
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR White
POWER LEVEL
6S
6S
6S
RADIO SYSTEM
Spektrum SLT3 Tx/SR315 Rx 3ch (Dual Protocol Version)
Spektrum SLT3 Tx/SR315 Rx 3ch (Dual Protocol Version)
Spektrum SLT3 Tx/SR315 Rx 3ch (Dual Protocol Version)
2.4Ghz
Yes
Yes
Yes
NUMBER OF RADIO CHANNELS
3
3
3
ESC
Spektrum FIRMA 150A SMART V2
Spektrum FIRMA 150A SMART V2
Spektrum FIRMA 150A SMART V2
WATERPROOF ELECTRONICS
Yes
Yes
Yes
ESC CONNECTOR TYPE
IC5
IC5
IC5
MOTOR
Spektrum FIRMA 4074 2050Kv
Spektrum FIRMA 4074 2050Kv
Spektrum FIRMA 4074 2050Kv
MAXIMUM MOTOR SIZE
43mm diameter, 74mm length
43mm diameter, 74mm length
43mm diameter, 74mm length
SERVO
Spektrum S665 Digital
Spektrum S665 Digital
Spektrum S665 Digital
SERVO GEAR MATERIAL
Steel
Steel
Steel
MAX SERVO SPEED @7.4v
0.12sec
0.12sec
0.12sec
ARRMA Part Number
ARA7612T1
ARA7612T2
ARA7612T3
Vehicle Name
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Gunmetal
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Red
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR White

Included

OPTION GEARING
16T Speed Pinion
16T Speed Pinion
16T Speed Pinion
TOOLS INCLUDED
Cross Wrenches and Hex Wrenches (1.5, 2.0, 2.5, 3.0, 5.0mm)
Cross Wrenches and Hex Wrenches (1.5, 2.0, 2.5, 3.0, 5.0mm)
Cross Wrenches and Hex Wrenches (1.5, 2.0, 2.5, 3.0, 5.0mm)
ADDITIONAL PARTS
16T Speed Pinion, IC5 Loop connector (for use with single 4S or 6S battery pack)
16T Speed Pinion, IC5 Loop connector (for use with single 4S or 6S battery pack)
16T Speed Pinion, IC5 Loop connector (for use with single 4S or 6S battery pack)

Required

RECOMMENDED LIPO BATTERY MINIMUM CONTINUOUS DISCHARGE RATE
50C 5000mAh minimum, 100C 5000mAh recommended. IC5 Connector.
50C 5000mAh minimum, 100C 5000mAh recommended. IC5 Connector.
50C 5000mAh minimum, 100C 5000mAh recommended. IC5 Connector.
REQUIRED ITEMS
2x2S LiPo, 2x3S LiPo, 1x4S LiPo OR 1x6S LiPo Battery (with IC5 Connector), LiPo Charging Bag, Charger
2x2S LiPo, 2x3S LiPo, 1x4S LiPo OR 1x6S LiPo Battery (with IC5 Connector), LiPo Charging Bag, Charger
2x2S LiPo, 2x3S LiPo, 1x4S LiPo OR 1x6S LiPo Battery (with IC5 Connector), LiPo Charging Bag, Charger

Resources

ARA7612T1
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Gunmetal
Product Page / Downloads
Exploded View (Interactive)
Standard Parts
Option Parts
ARA7612T2
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR Red
Product Page / Downloads
Exploded View (Interactive)
Standard Parts
Option Parts
ARA7612T3
BIG ROCK 6S 4WD BLX 1/7 Monster Truck RTR White
Product Page / Downloads
Exploded View (Interactive)
Standard Parts
Option Parts