Techtonic Hobbies

Experience the thrill of professional motocross

The Losi Promoto-MX 1/4 Scale Motorcycle delivers authentic motocross excitement right to your backyard. This isn't just another RC toy – it's a precision-engineered machine that captures the raw power and agility of real dirt bikes.

What makes this special:

Ready-to-Run Convenience – Everything included: motorcycle, battery, and charger

Eye-Catching Pro Circuit Scheme – Professional racing graphics that turn heads

1/4 Scale Realism – Impressive size and detail that mirrors real motocross bikes

Losi Quality – Trusted brand known for durability and performance

Perfect for:

RC enthusiasts seeking authentic motorcycle action

Collectors who appreciate detailed scale models

Anyone wanting to experience motocross thrills safely

Imagine the satisfaction of mastering jumps, corners, and straightaways with this beautifully crafted machine. The Pro Circuit graphics gleam in the sunlight as you navigate challenging terrain, feeling every bump and turn through precise controls.

Ready to ride straight from the box – just charge the battery and hit the track!

What's in the box?

(1) Losi Promoto-MX Pro Circuit RTR Motorcycle

(1) Spektrum Smart DX3PM Transmitter

(4) AA Transmitter Batteries

(1) Spektrum 5000mAh 2S 7.4V Smart G2 50C LiPo Battery with IC5 Connector

(1) Spektrum Smart S120 USB-C Charger, 1x20W

(1) Bike Stand

(1) Starting Stand

(1) 1/4 Promoto-MX Motorcycle RTR Product Manual

(1) Quick Start Guide

Chain Lube

Tuning Parts

Fork and Shock Tools

Loaded with high-end parts for improved strength, handling, and long-term durability, the 1/8 scale ARRMA TLR Tuned TYPHON 4WD Race Buggy gives bashers the perfect platform for entering competitive racing. It has the chassis tuning capabilities of a race spec buggy and arrives ready-to-run, with proven Spektrum radio and brushless power systems installed. The TLR Tuned TYPHON 4WD Race Buggy RTR comes prepared to hit the racetrack or the bash spot — you decide which!

With its powerful 4S and 6S LiPo capable Spektrum brushless power system, the TLR Tuned TYPHON blasts over rough terrain with ease. On 4S, you can compete at your local racetrack. With the additional power of a 6S LiPo, the TLR Tuned TYPHON performs stunts and tackles big jumps at your favourite off-road bash location.

The buggy’s durable TLR Tuned 7075-T6 aluminum upgrades include the chassis plate, steering rack, adjustable upper and lower suspension hangers, shock bodies, and front and rear shock towers. All are laser-etched with the TLR Tuned logo. The oil-filled, adjustable shocks have machined tapered pistons, machined shock guides, and X-ring seals, and are attached to the shock towers with Extreme Bash (EXB) stand-offs.

The TLR Tuned TYPHON 4WD Race Buggy also features a heavy-duty drivetrain that holds up to extreme bashing and high-speed racing, with all-metal diff outdrives and gearbox internals plus durable steel driveshafts throughout. Its extra-strong wheel hubs support low-drag wheels on which ARRMA engineers have mounted multi-terrain, race compound dBoots EXABYTE tires for next-level grip. A Race Spec tunable rear wing helps to keep the tires and buggy grounded, contributing to confident control and responsive handling at high speeds.

Maintenance downtime is kept to the minimum with an efficient, driver-friendly design. For example, an aluminum sliding mount gives you fast, hassle-free access to the factory-installed Spektrum Firma 4074 2050Kv brushless motor.

Topping off the 1/8 scale TLR Tuned TYPHON 4WD Race Buggy RTR is a standout body finished in an exclusive paint scheme of Race Spec colors plus decals. It’s the ultimate ARRMA buggy for intermediate-level bashers with an eye towards racing.

Header Image of TLR Tuned Typhon RTR

SPEKTRUM 6S CAPABLE BRUSHLESS POWER SYSTEM

The included Spektrum Firma 2050Kv brushless motor and Firma 150A Smart ESC together provide the perfect power system for use with 4S or 6S LiPo batteries. On 4S you can compete at your local racetrack. The additional power supplied by a 6S LiPo supports big jumps and stunts at your local bash spot.

ALUMINUM PARTS

The Firma 2050Kv brushless motor arrives factory-installed on a black-anodized aluminum sliding motor mount for durability and fast, hassle-free access. The servo mount and 17mm wheel hexes are also constructed of aluminum for bash-ready strength.

SPEKTRUM SLT3 2.4GHz 3-CHANNEL RADIO

The included Spektrum SLT3 transmitter is ergonomically designed for fatigue-free driving and has a foam wheel for precise fingertip control. Throttle limits can be set at 50% or 75% until you’re ready to use the full speed potential. Compatible with SLT and DSMR protocols, the SR315 3-channel receiver offers outstanding range and fast response rate. For dependable steering control, ARRMA includes a Spektrum S652 metal-gear digital servo capable of 265 oz-in of torque.

TLR TUNED 7075-T6 ALUMINUM PARTS

The TLR Tuned TYPHON 4WD Race Buggy RTR features many high-end aluminum parts that increase durability and improve handling. For intermediate-level bashers, it’s the perfect platform to use for racing and to gain experience with tuning — Designed Faster and Tougher!

TLR TUNED ADJUSTABLE SUSPENSION HANGERS

Laser-etched with the TLR Tuned logo, the TLR Tuned aluminum lower and upper suspension hangers have many different inserts included in the box that you can swap out to tune your buggy for the best performance in a variety of driving conditions. 

OIL-FILLED SHOCKS

The adjustable oil-filled shocks are mounted on TLR Tuned 7075-T6 Aluminum Shock Towers and feature TLR Tuned Aluminum Shock bodies, machined tapered shock pistons, and EXB Extreme Bash shock stand-offs. They easily soak-up bumps over dirt, asphalt, and grass for super-smooth damping.

RACE SPEC FINISHED BODY

Topping off the TLR Tuned TYPHON 4WD Race Buggy RTR is a sleek body that’s factory-finished with exclusive Race Spec colors and decals, distinguishing it from the roller version TLR Tuned TYPHON. A low-drag, tunable rear wing helps keep the buggy grounded, contributing to confident control and responsive handling at thrilling high speeds.

HIGH-TRACTION dBOOTS EXABYTE TIRES

The dBoots EXABYTE tires are made of high-quality, race compound rubber for long-lasting durability. Their multi-surface tread pattern provides excellent traction in all conditions. The tires include foam inserts and are pre-glued to low-drag, 1/8 buggy nylon wheels. The industry standard 17mm hex fitting adds strength for extreme action and allows easy maintenance plus a wide range of tuning options.

Footer Image of TLR Tuned Typhon RTR

What’s in the Box? 

(1) ARRMA TLR Tuned TYPHON 4S 1/8 4WD Race Buggy RTR

(1) Spektrum Firma 150A Smart Waterproof ESC

(1) Spektrum Firma 4074 2050Kv Brushless Motor

(1) Spektrum 2.4GHz SLT3 3-Channel Transmitter

(1) Spektrum SR315 3-Channel Dual Protocol Receiver

(1) Spektrum SPMS652 Waterproof Metal-Geared Digital Servo

(4) AA Batteries for the Transmitter

(1) Product Manual

Battery and charger sold separately. The perfect platform for intermediate bashers ready to enter competitive racing - designed faster and tougher!