🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
Price
$188.99
RampCrab Axle widening upgrade parts for TRX4M, 11mm wider on each side (Front & Rear), Brass upgrades parts for TRX4m RC Crawler Car, Fit for 1/18 TRX4-M Unlimited Trail Buggy, Ultra 11 — image 1
Service & Tuning PartsRampCrab✓ In stock

RampCrab Axle widening upgrade parts for TRX4M, 11mm wider on each side (Front & Rear), Brass upgrades parts for TRX4m RC Crawler Car, Fit for 1/18 TRX4-M Unlimited Trail Buggy, Ultra 11

$188.99

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2 available
Size: +11mm per side
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About this item
  • RampCrab widening upgrade kit (Ultra 11) for TRX4M can widen your TRX4m RC Car Axle by 11 mm on each side over stock, Resulting in a total width increase of 22 mm. For front and rear axles.
  • Say goodbye to ruined scrub radius, excessive load on the steering servo, and diminished servo power. Reset the scrub radius back to stock, ensuring ultra-responsive steering and reducing wear on your servo.
  • The upgrade parts for TRX4M Made of high-quality brass, it adds weight to your 1/18 RC car and makes the center of gravity lower. Offer all the benefits of wheel wideners of TRX4M without any of the drawbacks.
  • Steering angle greater than 45 degrees.
  • Come with Bearings, Screws, Grease & Threadlocker.
Product description

Product description Note: The color of the item may vary slightly due to photography and your own computer / Phone If you are not 100% completely satisfied with our products, please do not hesitate to contact us to request a refund or exchange! widen your TRX4m RC Car Axle by 11 mm on each side over stock, Resulting in a total width increase of 22 mm. For front and rear axles. Easy to install, Add stability Say goodbye to ruined scrub radius, excessive load on the steering servo, and diminished servo power. Reset the scrub radius back to stock, ensuring ultra-responsive steering and reducing wear on your servo. Fit for 1/18 TRX4M Defender & Bronco, K10 Specifications: Item name: widening upgrade kit (Ultra 11) for TRX4M Color: Black Material: high quality hardened steel, Brass RampCrab TRX4M Parts Package Included: Brass C-Hubs +11mm Length (2) Brass Knuckles (1 set) Brass Widening upgrade Parts for Rear Axle +11mm (2) Brass steering link +22mm (1) Front & Rear Drive Shaft for TRX4M +11mm Length (2) bearings 8*12*3.5 (2) bearings 3*6*2.5 (2) bearings 3.5*7*2.5 (4) Screws (1 set) Pin 1.5X5 (4) Washers M3 (4) Nuts M2.5 (4) Grease For Bearing (5g) Grease For Gear (5g) Threadlocker (2g) Note: Please check your specific model's manual for compatibility, or contact us. Directions 1. Remove the stock axles and steering components from your TRX4M. 2. Install the Brass C-Hubs +11mm Length on both front and rear axles. 3. Install the Brass Knuckles. 4. Install the Brass Widening upgrade Parts for Rear Axle +11mm on both rear axles. 5. Install the Brass steering link +22mm. 6. Install the Front & Rear Drive Shaft for TRX4M +11mm Length on both front and rear axles. 7. Install the bearings, screws, pins, washers, and nuts as per the included hardware.

Product details
Brand
RampCrab
Manufacturer
RampCrab
Material
Alloy Steel
Colour
Black
Size
+11mm per side
Weight
0.14 kg
Model number
T4M-AXLE+11-SET-US
Part number
T4M-AXLE+11-SET-US

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

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