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BRX01 Design Concept

Over the years R/C crawlers have become more realistic in terms of performance and scale features. But to date, the crawler hobby industry hasn't seen a high performance “daily driver” – what we industry junkies describe as a 1:1 vehicle that can be purchased from the dealership, a truck without a suspension lift and big tires.

So we set out to produce this truck - a performance based “daily driver” packed with innovations; fine enough to be a shelf queen and badass enough to be a beast on the trails!

The Scale 4WD Series is Boom Racing’s line of scale based 4WD R/C products geared towards realistic appearance.

Chassis Specifications:
Length: 462mm (chassis) / 523mm (with body)
Front Track Width: 188mm
Rear Track Width: 184mm
Ground Clearance: 26mm
Weight: 1880g (chassis) / 2560g (with body)
Height: 132mm
Wheelbase: 313mm
Approach Angle: 45 degree (with body)
Departure Angle: 35 degree (with body)
Breakover Angle: 35 degree (with body)
Front Shock Length: 80mm
Rear Shock Length: 80mm
Wheels: 1.55" Internal Beadlock
Tires: 3.46" x 0.94" (88mm x 24mm)
Hex Size: 12mm
Motor Size: 540/550 (not included)
Transmission: 2-speed Hi-Lo, Remote Shifting
Transfer Case: Anti-Torque Twist w/ Selective Rotational Drive (SRD)
Gear Pitch: 32P Pinion/Spur, 48P T-Case
Chassis Structure/Material: 7mm Billet Machined Aluminum
Drive System: Full Time Shaft Driven 4WD
Steering: Chassis Mounted Servo
Suspension: Front 3 Link Panhard and Rear Triangulated 4 Link

The BRX01 includes an all-new JX Waterproof Metal Gear shift servo.

Model JX/PDI-1151MG
Dead Band: 4μs 1520μs/330hz
Voltage Range: 4.8V – 6V
Motor: High Quality Core Motor
Operating Speed (4.8V): 0.12sec / 60°
Operating Speed (6.0V): 0.1sec / 60°
Stall Torque (4.8V):
Stall Torque (6.0V):
Dimensions: 30 x 12.5 x 29.1mm
Weight: 15g
Connector Wire Length: JR 310mm
Tooth Count: 25
    • Billet machined 7mm aluminum frame rails
    • Integrated with high-steer design to maximize steering angle
    • Low profile chassis setup for overall low center of gravity
    • High clearance skid plate for superior crawling capability
    • Centralized chassis weight and drivetrain design to keep the left and right side equally balanced
    • Adjustable Chassis Mounted Servo Mount
    • Complete High Performance Rubber Sealed Bearings
    • BRX70 PHAT™ high pinion heavy duty cast metal axle for increased weight down low
    • BADASS™ heavy duty steel universal shafts with over 45 degree steering angle
    • AR44 heavy duty keyed steel cut bevel gears for high performance and durability
    • Adjustable caster angle for tuning
    • Knuckles have multiple mounting positions for tuning
    • Reversible axle bevel gear positions
    • Leaf spring over and under axle setup enabled
    • Detachable aluminum CNC truss
    • Full aluminum 2-Stage spring loaded oil-filled shocks
    • Threaded bodies with adjustment collars
    • Optional soft springs included
    • Officially licensed Killerbody Toyota Land Cruiser 70 Hard Body kit
    o ABS hard plastic
    o Over 12 highly detailed scale parts (door mirrors, interior mirror, air intake, snorkel, dashboard, steering wheel, window wipers, front wheel arches, chrome radiator grill, antenna, full filler cap, door handles and badges)
    o Ready for LEDs (not included)
    o Optional extras available including full interior, moving windows and other scale details (not included)
    • Quick release LC70 body hinge and mounts for easy access to chassis components
    • Fits optional Killerbody LC70 body interior (with minimal cutting)
    • Full-time shaft driven 4WD
    • Innovative pinion-spur gear mesh guide for precision setup
    • Heavy duty steel cut gears
    • Anti-Torque Twist T-Case with Selective Rotational Drive™ (SRD) that reduces chassis torque twist under acceleration
    • Voodoo Heavy Duty Steel Center Drive Shafts
    • Small footprint aluminum gearbox with Hi/Low range 2-speed transmission
    • Adjustable motor positions for low center of gravity and high clearance setup
    • Heavy duty steel cut gears
    • Hard plastic 32 Pitch 28T spur gear for durability
    • Behind-The-Axle steering for superior front axle clearance and realistic scale appearance
    • Stainless steel tie rod, drag link & panhard link
    • Counter threaded drag link and panhard link for quick adjustments
    • Front: 3-link with panhard (leaf spring enabled)
    • Rear: triangulated 4-link (leaf spring enabled)
    • Adjustable panhard link and mount
    • Adjustable front shock tower with 52 possible mounting positions
    • 12 rear suspension mounting positions
    • Hard Anodized 7mm Aluminum Chassis Links
    • BADASS™ Heavy Duty 4mm Rod Ends with Rust-Resistant Stainless Steel Pivot Balls
    Wheels & Tires:
    • 1.55” 16-Hole Stamped Steelie Beadlock Wheels
    • SP Road Tracker (Gekko Compound) Tires 3.46” x 0.94” (88mm x 24mm)
    • Single stage open foam inserts
    • JX Waterproof Metal Gears Mini Servo for remote 2-speed shifting
    • Proprietary silicone sealed watertight receiver box keeps the receiver dry

What’s Included:
• BRX01 1/10 4WD Chassis Bolt-On Kit BR8001
• JX Waterproof Mini Servo with Metal Gears
• Quick Release Body Mount and Hinge for LC70 Body
• 32 Pitch 12T Steel Pinion Gear
• 25T Low Profile Aluminum Servo Horn
• Maintenance Kit (Shock Oil, Black Grease, Siliking Grease, Thread Lock)
• Cable Wiring Retainer Set (18pcs)
• Killerbody Licensed LC70 Hard Body Kit KB/48601
• BRX01 Owners Card (Numbered) with Chassis VIN#
• Basic Tool Kit

Equipment Required:
1) 3 Channel Radio System
2) ESC (electronic speed control)
3) Steering Servo
4) 540 or 550 Motor (27T for off-road / 35T for crawling matched with provided 12T pinion gear)
5) Battery
6) Charger
7) Tools

The BRX01 transmission uses a 28T 32 Pitch spur gear made from carbon composite plastic. The pinion gear can be changed from 9T to 16T.

The second gear rotates approximately 2.2 times faster than the first gear. Drivers can notice a significant increase in speed shifting from first to second gear.

A Bolt-On Kit means parts of the chassis are pre-assembled and require minor assembly for completion. The factory assembled parts offer convenience for builders eager to get started.

The BRX01 kit includes factory pre-built axles, transmission, transfer case and shocks. Shocks require oil to be filled (included).

Download and use this diagram to sketch the design scheme for your LC70 hard body before painting.
LC70 Body Prep.pdf

Download and build your own scale BRX01 boxes as scale accessories. Have the BRX01 with you wherever your RC takes you.
BRX01 Scale Boxes.pdf

Download the instruction manual for BR8002 BRX01 1/10 4WD Chassis Kit with LC70 Body
Instruction Manual - BRX01 1/10 4WD Chassis Kit with LC70 Body BR8002.pdf

Download BRX01 Cut-Out Guide For Killerbody LC70 Interior
BRX01 Cut-Out Guide For Killerbody LC70 Interior

Boom Racing’s One (1) Year Factory Limited Warranty – A Peace Of Mind Right From The Start

This warranty is extended to the original end-user that registers it online ( only, whether purchased or received as a gift.


What Is Covered and How Long
Boom Racing warrants that all new products are free from defects in manufacturing, materials and workmanship for a period of one (1) year from date of retail purchase. The receipt or invoice at the time of purchase is your proof of purchase and is required for Boom Racing to honor any warranty.

What Is Not Covered
It does not cover defects or malfunction caused by user error of assembly, damages due to normal wear and tear, failure to follow operating instructions, misuse or abuse, users’ failure to perform routine maintenance, or use with products with which is not intended to be used. It also does not cover damages caused by unauthorized alteration, modification or repair. It does not cover cosmetic or incidental damages. Boom Racing does not warrant or provide service or support for any third party products.

What We Will Do
We will, at our discretion, repair or replace any product free of charge that is incorrectly made or proves to be defective in material or workmanship during the warranty period. If your product is no longer being manufactured or is out of stock, we may replace your product with a comparable or improved product at our option.

What We Will Not Do
We will not pay for shipping, insurance or transportation charges from you to us, or any import fees, duties and taxes.

What To Do To Obtain Warranty Service
To obtain warranty service for products purchased from a third-party, retail or directly from Boom Racing you must return the product with proof of purchase using the following procedures:

1. Contact Boom Racing Customer Support for specific warranty instructions via our website, by email or by telephone as follows:
o Online @:
o Email:
o Telephone: 1-209-676-8880

You may be asked to complete a warranty service request form. A copy of your purchase receipt may be required.

2. Our Customer Support may ask you to return and ship the defective product back to us. Label and ship the product, freight prepaid, to the address provided by Boom Racing; and
3. Place any necessary return authorization number prominently on the outside of the return packaging. Return packaging not bearing a return authorization number where required may be refused.

Boom Racing reserves the right to final decision, change or modify this warranty without notice.

Owning a BRX01 is a truly unique and special experience.

All BRX01 chassis kits are numbered and include a VIN#. The Car No. and VIN# match those on the BRX01 Owners Card. No two chassis will ever have the same numbers. We believe that this will encourage enthusiasm and interaction between owners and we hope that it will boost attendance at events to push the hobby industry further down the road.

Follow the instructions on the back of the Owners Card to register your vehicle.

Once your vehicle is registered online, the chassis is officially registered to you and no one else can claim it. This will help with any future updates and can be used to notify you of new options in the future.

To register your BRX01 visit: