Overview
Boost the performance of your TRX-4M RC crawler with the Traxxas Transmission, complete (speed gearing) featuring a high 9.7:1 reduction ratio. This is the ultimate upgrade for RC enthusiasts in the UK who want to push their TRX-4M to maximum speed across open terrain. Whether you're a seasoned RC car UK collector or looking to enhance an existing 1/18 scale trail truck, this professional transmission assembly transforms your vehicle's top-end capability and delivers thrilling acceleration on demand.
The Traxxas Speed transmission is engineered for drivers who demand performance without compromise. This isn't just a transmission replacement—it's a complete, professionally assembled unit that includes a brand-new Titan 180 87-turn motor ready to deliver exceptional speed. The 9.7:1 reduction ratio is specifically calibrated to maximise velocity whilst maintaining the reliability Traxxas is known for. Perfect for UK RC enthusiasts who want a ready-to-install solution that requires zero assembly or adjustment, this transmission bolts directly into your TRX-4M with no fuss or downtime.
Compatible with a range of TRX-4M models including the Ford Bronco, Land Rover Defender, Chevrolet K10, and Ford F-150 variants, this speed upgrade opens up new possibilities for your RC collection. The professional assembly from Traxxas ensures that every component is perfectly aligned and ready for immediate use. If you're serious about maximising the performance potential of your 1/18 scale RC crawler, this is the transmission upgrade you've been waiting for.
Key Features
- 9.7:1 Reduction Ratio — The high gear reduction ratio is specifically engineered to deliver maximum top-end speed, allowing your TRX-4M to reach its full velocity potential on open terrain and open tracks.
- Titan 180 87-Turn Motor Included — Every Speed transmission comes with a fresh new Titan 180 87-turn motor already installed, eliminating the need to purchase a separate motor and ensuring perfect compatibility and performance calibration.
- Traxxas Pro Built Professional Assembly — Each transmission is professionally assembled by Traxxas technicians with proper bearing installation and precision gear alignment, meaning there's no gear mesh adjustment required and no parts to manually align before installation.
- Complete Transmission Gearing System — The set includes all necessary transmission gears plus a new 11-tooth motor pinion, providing a complete drivetrain solution rather than a partial upgrade that requires additional parts sourcing.
- Bolt-In Installation — The entire assembly bolts in as a complete unit, delivering quick and easy installation into your TRX-4M with zero adjustment required, getting you back on the track in minutes rather than hours.
- Brushless Motor Technology — The Titan motor delivers brushless reliability and efficiency, providing consistent power delivery, extended runtime between charges, and reduced maintenance compared to brushed alternatives.
Technical Performance
The Traxxas Speed transmission represents a significant engineering achievement in 1/18 scale RC performance. Built around a precision-engineered 9.7:1 reduction ratio, this transmission leverages the power of the included Titan 180 87-turn brushless motor to deliver maximum top-end velocity. The 11-tooth motor pinion works in perfect harmony with the transmission's internal gearing to optimise the power delivery curve, ensuring that acceleration and speed are balanced for exciting driving dynamics. The Titan 180 motor, renowned throughout the RC car UK community for its brushless efficiency and reliability, provides consistent power output with minimal heat generation and exceptional runtime per charge cycle. The professional assembly from Traxxas guarantees that all internal components are perfectly meshed and aligned, eliminating the variables that can reduce performance and reliability. The transmission assembly is constructed with quality materials and precise engineering tolerances that meet Traxxas's renowned standards. This complete transmission system transforms your TRX-4M from a capable crawler into a speed-focused machine, ideal for open-terrain running on surfaces where the vehicle can exploit the increased gear ratio. The engineering focuses entirely on velocity optimisation, making this the ideal choice for drivers who have mastered the capabilities of their stock transmission and are ready for the next level of performance.
What's in the Box
- Complete transmission assembly with all internal gears
- Titan 180 87-turn brushless motor, pre-installed and ready to use
- 11-tooth motor pinion gear
- Professionally assembled unit ready for bolt-in installation
Frequently Asked Questions
- What is the difference between the Speed transmission and the standard TRX-4M transmission? — The Speed transmission features a 9.7:1 reduction ratio optimised for maximum velocity, whereas the standard and low-range transmissions have different ratios designed for torque, technical climbing, and obstacle navigation. The Speed version prioritises top-end performance for open-terrain running.
- Is this transmission suitable for snow, mud and rock crawling? — No, Traxxas specifically does not recommend this Speed transmission for snow, mud, rock crawling, or other high-resistance surfaces. The 9.7:1 ratio is engineered for speed across open terrain rather than for the high-torque demands of extreme terrain. For challenging terrain, consider the low-range transmission instead.
- Do I need to purchase a motor separately or is one included? — A complete Titan 180 87-turn brushless motor is included with the transmission, professionally installed and ready to operate. You do not need to source or purchase a motor separately, simplifying the upgrade process and ensuring perfect compatibility.
- Is any assembly or adjustment required before installation? — No assembly or gear mesh adjustment is needed. The transmission comes as a complete unit, professionally assembled by Traxxas with perfect bearing installation and gear alignment. Simply bolt it into your TRX-4M and you're ready to drive.
- Which TRX-4M models are compatible with this transmission? — This Speed transmission is compatible with all TRX-4M variants, including the 1/18 Ford Bronco, 1/18 Land Rover Defender, Chevrolet K10, Ford F-150, and TRX-4MT Monster Truck versions in all available colours and specifications.
- How much faster will my TRX-4M be with the Speed transmission? — The 9.7:1 ratio will significantly increase your vehicle's top-end velocity compared to the stock transmission, though the exact speed increase depends on your driving surface, battery capacity, and motor characteristics. The improvement in acceleration and maximum speed will be immediately noticeable when driving on open terrain.
- What battery capacity do I need for this transmission and motor? — The Titan 180 87-turn motor is compatible with standard TRX-4M battery systems. Consult your TRX-4M manual or contact RC Model Shop for specific battery recommendations that optimise performance with the Speed transmission.
- Is this a worthwhile upgrade for a beginner? — This upgrade is best suited for experienced RC drivers who have mastered their stock TRX-4M and understand the benefits of different transmission ratios. Beginners should develop driving skills with the standard transmission before exploring speed-focused upgrades.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas Transmission, complete (speed gearing) (9.7:1 Reduction ratio) (includes Titan 87T motor) TRX9791X today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
- Part Number: TRX9791X
- Manufacturer: Traxxas
- Product Type: Complete Transmission Assembly with Included Motor
- Transmission Type: Speed Gearing
- Reduction Ratio: 9.7:1
- Motor Type: Titan 180 87-turn brushless
- Motor Pinion: 11-tooth (included)
- All transmission gears included
- Compatible Scale: 1/18
- Assembly Status: Professionally pre-assembled by Traxxas
- Installation Type: Bolt-in, no adjustment required
- Bearing Installation: Included with professional assembly
- Compatible Vehicles: TRX-4M Ford Bronco (all colours), TRX-4M Land Rover Defender (all colours), TRX-4M Chevrolet K10 (all colours), TRX-4M Ford F-150 (all colours), TRX-4MT Monster Truck variants
- Gear Mesh: Pre-aligned, no manual adjustment needed
- Motor Status: New, fresh condition
- Use Case: Maximum speed on open terrain
- Not Recommended For: Snow, mud, rock crawling, high-resistance surfaces
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
