The Number-One Selling
R/C Monster Truck of All Time!
TRX® 2.5 Racing Engine
"The TRX 2.5 blows away every other small block engine we’ve ever tested!" --R/C Nitro Magazine
“Best Nitro Engine” --RC Car Action Magazine Readers’ Choice Award
The TRX 2.5 Racing Engine is nothing short of amazing. It comes loaded with all the hottest performance goodies. The two-needle composite slide carburetor, trick porting, and free-flowing rear exhaust deliver unmatched, class-leading horsepower that rips huge wheelies and pushes the T-Maxx past 40mph! Plus only the TRX 2.5 has the push-button starting convenience of the EZ-Start® Electric Starting System.
High-Volume Air Intake System
The TRX 2.5 Racing Engine uses a high-volume air intake system with a two-stage air filter. The filter housing and neck are designed to mate seamlessly with the carburetor to eliminate turbulence in the air-flow going into the engine.
Tuned Exhaust System
Call it a factory 'works' pipe. The header and pipe length and shape are dyno-tuned for the TRX 2.5 to bring out the most power over the broadest RPM range. All that means is you can nail the throttle hard at any speed and get some serious 4-wheel roost.
EZ-Start® Electric Starting System
The Traxxas EZ-Start consists of an onboard drive unit that lights the glow plug and spins the engine for easy push-button starting from the handheld control module. The controller contains diagnostic LEDs that provide real-time status of the glow plug and starter motor. It tells you if the glow plug is bad and protects the starter motor from overloading. The EZ-Start system is powered by a standard rechargeable 7.2 volt battery pack. Once you’ve used the EZ-Start system, you may never go back to pull-starters again!
Forward/Reverse Two-Speed Transmission
T-Maxx’s fully enclosed transmission features two-speeds forward and two-speeds reverse with a speed-sensitive reverse lockout. It provides racing-truck acceleration in low gear and 40+mph top speeds in high gear. Shifting is hard, fast, and automatic with an adjustable shift point! Just push a button on the TQ-3 transmitter to shift into reverse. Only the patented T-Maxx design allows full proportional control of throttle and braking, along with two-speed shifting, in both forward and reverse gears (patent# 6367345).
Adjustable Slipper Clutch
T-Maxx is equipped with an adjustable slipper clutch to absorb drivetrain shocks and protect against damage, especially after those 30-foot jumps you just couldn’t resist. Standard spur gears are used to allow easy changes to the overall gearing.
Disc Brake
T-Maxx uses a disc brake mounted forward of the transmission to provide powerful 4-wheel braking action and sure-footed stopping power. A fiberglass-composite disc and stainless steel pads are used for long life and reliability.
U-Joint Slider Driveshafts
The large diameter slider driveshafts are made to take abuse. With real u-joints at each end and variable-length sliding half shafts, our driveshafts allow longer suspension travel, no binding, and less friction than metal 'dog-bone' shafts. The Traxxas driveshaft material absorbs impacts and stress loads that break skinny metal drive shafts. It’s a superior, better-engineered solution.
Hardened-Steel Differentials
New differential case is strengthened for more precise gear alignment. Hardened-steel ring and pinion gears have been precisely engineered to deliver quiet, efficient operation and reliable performance. The integrated planetary gear differentials also use hardened steel gears for tough, virtually maintenance-free running. They’re made to take the rigorous off-road pounding that comes so naturally for a T-Maxx.
High-Torque Steering Servo
A big truck needs a powerful steering servo for responsive performance. The included Traxxas high-torque servo delivers over 80 in/oz of torque.
Bellcrank Steering System
The bellcrank steering system provides precise steering geometry for correct Ackerman and almost no bump steer, even with T-Maxx’s huge suspension travel. The supplied bellcrank bushings can replaced with ball-bearings for even smoother steering performance.
That Famous Maxx® Suspension
One of the hallmarks of the T-Maxx is its incredible WideMaxx 4-wheel independent suspension. Wicked long travel, nearly 4 inches at each wheel, is ready to take on just about the roughest terrain you can imagine. Eight oil-filled shocks (2 at each wheel) deliver that plush feel and 'bottomless' suspension travel T-Maxx is famous for. The WideMaxx is fully tuneable for the track with up to 10 shock-mounting positions, adjustable front caster angle, front and rear toe, and front and rear camber angles.
Oil-Filled Ultra Shocks™
Traxxas oil-filled Ultra Shocks are fully tuneable for race-inspired performance. The spring pre-load is adjustable via precise clip-on spacers making it easy to know that each shock is adjusted to the same spec. Rubber pressure bladders prevent air pockets and foaming common with bladderless designs. Double o-ring seals in the shock body prevent leaking.
6061-T6 Aluminum Chassis
The 3.2mm aluminum chassis is formed from durable 6061-T6 aluminum and then anodized in beautiful blue. Besides forming a rigid backbone for the rest of the truck, the aluminum acts like a heat sink to draw additional heat away from the engine. All of the systems and components are neatly arranged on the chassis for easy cleaning and servicing.
High Ground Clearance
The unique T-Maxx chassis design offers maximum center ground clearance (over 4 inches) to eliminate the high-centering and chassis dragging that plague flat-chassis monster trucks. Plus it maintains that tall, authentic monster truck look.
ProGraphix® Painted Body
The new extended wheelbase T-Maxx body comes fully trimmed and painted. Decals are also applied to save time and get you driving just minutes out of the box. Traxxas' ProGraphix bodies are the hottest looking bodies around and are only available on Traxxas Ready-to-Race® models. Available in red, blue, black, and white.
Rubber-Sealed Ball Bearings
Now rubber-sealed! Nothing less than the precision of smooth-running ball bearings is good enough for T-Maxx. Faster performance, less maintenance, and no need to plan for a costly upgrade are just a few of the benefits.
Pre-Glued Wheels and Tires
The wheels are molded from durable nylon and carefully engineered be strong with the least amount of weight. The monster 5.75"h x 3.5"w tires use foam inserts so that the tire carcass can be thinner and lighter. The wheels feature a metalized finish that provides the realistic look of real aluminum without the weight. It all adds up to lower rotating mass and quicker acceleration.
Heavy-Duty Nylon Construction
The T-Maxx isn’t just made of plastic. Its parts are molded from various types of composite-filled nylon that strike the perfect balance of rigidity and resistance to breakage. Traxxas has been perfecting the formula for years! We can’t promise that you’ll never, ever break something, but you can count on the T-Maxx for superior durability and you’ll be amazed at the kinds of crashes and daredevil stunts it can withstand.
Three-Channel Radio System
T-Maxx includes the TQ-3 pistol grip radio system, a precision throttle servo, and a high-torque digital steering servo. The dedicated channels provide full control over T-Maxx's throttle/braking, steering, and shifting functions with the optional two-speed gear set installed. The TQ-3 features electronic trim controls, low-battery indicator, servo-reversing, and the exclusive grip-mounted 3rd channel switch.
Customer Support
We offer the best support, period. Nobody works harder than Traxxas to be accessible to you. We have friendly toll-free phone support that’s available from 8:30am to 9pm central time weekdays. Just call 1-888-TRAXXAS. We also offer e-mail support anytime at support@Traxxas.com. Parts and service are available from a network of almost 2,000 hobby dealers worldwide. Traxxas models are about experiencing total performance and satisfaction, not just in the products, but also with the company that stands behind them.
FEATURES
- Powered by Traxxas® TRX® 2.5 Racing Engine.
- Blazing new body graphics.
- New look with gray parts:
• Battery box, skid plates, shock bodies and lower chassis braces.
- Strengthened front and rear bulkheads.
- Strengthened differential housings.
- Strengthened engine mount.
- New receiver box with blue-anodized aluminum crimp nut.
- Pre-glued 3.8" Maxx® Chevron tires mounted on mirror-chrome Split-Spoke wheels.
- Improved adjustable body-mounts.
- Upper shock mounts allow for 3 mounting positions.
- Throttle/brake servo, shifting servo and high-torque steering servo delivers 80 in/oz of torque.
- EZ-Start® push-button electric starting.
- Automatic two-speed shifting in both forward and reverse.
- 4WD system with hardened steel ring and pinions; planetary gear differentials; slipper clutch.
- 8 adjustable oil-filled Ultra Shocks™.
- Over 3 1/2 inches of suspension travel.
- Four-wheel disc braking.
- Precision ball bearings (28 total).
- 3mm heavy-duty blue-anodized chassis.
- 3-channel radio system.
- Heavy-duty 3.5mm precision turnbuckles.
- Fully assembled and Ready-To-Race®.
- Includes full-color manual and DVD.
- Fully painted, trimmed and decaled Prographix® body.
- Fuel mixtures are pre-set.

MODEL 4910: Fully assembled, Ready-To-Race®,
with TQ-3™ radio, TRX® 2.5 Racing Engine
and ProGraphix® painted body.
Slayer Parts Lists, Exploded Views, Manuals and other helpful documents. NOTE: These files may take some time to load on slower connections.
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Note: See Parts Shipping information on bottom of page.
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Part #rce10580 |
Nitro Starter Kit includes 1500mh 6 cell nicad Sport Pack, 7.2V 2-3 hour wall charger, 12 Akaline Batteries, 300cc fuel bottle, 1oz after run oil |
Price
$29.49
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Part #tra2362 |
Shock rebuild kit (for 2 shocks) (Pro Level or Ultra) |
Price
$2.25 |
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Part #tra4122 |
Clutch bell, (22-tooth)/ 5x8x0.5mm fiber washer (2)/ 5mm Eclip
(requires #4611-ball bearings, 5x11x4mm (2)) |
Price
$10.29 |
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Part #tra4611 |
Ball bearing 5X11mm (2) |
Price
$5.09 |
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Part #tra4939x |
SS Hinge Pin Set E/T Maxx |
Price
$10.19 |
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Part #5246 |
Pipe coupler, molded (for use with pipes 5152 (T Maxx) &
4452R) (TRX 2.5, 2.5R, 3.3) |
Price
$1.59 |
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Part #tra5262 |
Air filter and pre-filter inserts, foam (high-volume) (3) (preoiled,
assembled) (TRX 2.5, 2.5R, 3.3) |
Price
$8.99
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RC Vehicle Parts/Accessories Shipping: On our Cart/Check Out Page we have a shipping method called "RC Parts" If you do not want expedited shipping of RC Vehicle parts/accessories please select this shipping method.
For small items the cost will never exceed $9.00 per shipment. For larger heavier items like the Nitro Kits, work stands etc. the cost may be slightly higher. In no case will we ever charge more then $14.00 per order for RC vehicle parts/accessories. We will adjust the shipping cost lower when the order is processed if the actual shipping cost is indeed lower. These costs depend upon shipping location, weight and size.
By selecting the RC Parts shipping method you will be charged either $9.00 or $14.00 depending upon the weight of the RC parts in the order. An order weighting less then 3 lbs. will be charged $9.00 orders 3 lb. or more $14.00. Again if the actual shipping costs are lower when we process the order we will adjust the costs down and notify you.
This shipping method cannot be used to ship any other non-RC parts/accessories items we sell nor can any other non-RC parts/accessories be included or used with this shipping method. If this method is used with other items the order will be delayed until we can contact the customer and correct the error.
ALL orders of $125.00 or more (before tax if any) ship free.
If you have any questions about this shipping policy please contact us.
How do I get Traxxas warranty service?
All warranty claims should be handled directly through Traxxas and not your hobby dealer. If you suspect you have a warranty claim, contact Traxxas toll free at 1-888-TRAXXAS (1-888-872-9927). Many times we are able to immediately solve problems over the phone.Traxxas Corporation assumes responsibility for their products and will repair or replace any defective product at their sole discretion.
Our toll-free customer service line provides direct access to our highly experienced factory trained representatives. In most cases, warranty items are sent out the same day the request is received. In the event that factory service is required, our technicians are usually able to make repairs within a 3-5 working day time frame after we receive the product.
In addition to these warranties, Traxxas offers an extended service plan for electronic components after the 30-day warranty has expired. This plan states that Traxxas will repair electronic components, at any time throughout the life of the part, for a flat rate of $15.00 plus $5.00 for shipping and handling. The electronic components covered under this service plan include certain Traxxas electronic speed controls, and all transmitters, receivers, and servos. Be sure to check here for more information on Traxxas' extended service programs.
Traxxas also offers the Lifetime Engine Replacement Plan for nitro-powered engines. This plan allows you, at any time throughout the lifetime of your TRX Pro.15 engine, to exchange it for a brand-new TRX Pro.15 engine at 50% of the suggested retail price of a new TRX Pro.15. For more information on any of the Traxxas warranties or any of our other service plans, contact our customer service department. Ask cusomter service about your TRX 2.5 Racing Engine replacement plan.
To take advantage of any of the services we offer, or if you believe you have a warranty issue to solve, simply send in the item(s) in question to the Plano address with attention to customer service. Include a copy of your receipt, a note describing the reasons you are sending the item(s) in to our repair lab, a daytime phone number, and a return shipping address.