Center Spring - Gold (Hard)

Disc Damper Spring - Super Soft (Gray)

Parts Tree No. 1

Disc Damper Spring - Soft (Black)

Damper Spring - Medium (Silver)

Parts Tree No. 2

Parts Tree No. 3

Aluminum Wing Mount

Option 2° aluminum knuckles.  Use more camber on tracks with sweeping corner where the tires will cone towards the outside in order to get more even tire wear.

THE PACK HORSE

Dual Main Compartments

Two fully customizable main storage areas let you organize your cars, controllers, and essential gear exactly how you want them. Perfect for getting to the track organized. Or, you can open the center separator to have one large compartment.

(for scale - each compartment can fit 9 car crates!) 

Triple Side Access

Three zippered side compartments provide quick access to tools, batteries, and small parts without digging through your main storage. Keep your pit crew essentials at your fingertips.

Dedicated Laptop Sleeve

Side-mounted, fully zippered laptop compartment keeps your tech safe and separate from RC gear. Perfect for timing software, setup sheets, or entertainment between races.

Includes 3 Premium Packing Cubes!

Never lose another part again. Each Pack Horse comes with three perfectly-sized organizational cubes.

Weight: 3 lbs 7 Ounces with 3 packing cubes

and don't forget the built in water bottle holder!

XB1-061-11+3 Xbility 11mm +3 Offset Rear Rim For XBOne (2pcs)

• Improved top speed / Precision response / High efficiency with the cool operation
• When used with the EzRun Mini28 ESC, timing advance can be used to increase top speeds drastically.
• Zero cogging, consistent torque and excellent low-speed response give an amazing feel and driveability
• Modular detachable structure, convenient for daily cleaning and maintenance.

Material: Carbon
Color: Black
Package List: MST RMX Carbon 2.5mm Lightweight Lower Deck (1 pc)
Compatible with ： MST RMX 2.5

• Material: Lexan

• 1/18 scale body is compatible with the Micro B onroad conversion kit (NX-551)

• Clear lexan body
• This is a great choice when you install it with the Micro_ B onroad Kit. The above ratio is 1:18, still suitable for kits of the same ratio.

🏎️ Performance Upgrade: Micro B to 1:18 Scale RC Chassis

Looking for a serious upgrade that’s easy to install and built to perform? This new chassis is engineered for precision handling, lightweight strength, and plug-and-play convenience — all without sacrificing fun or flexibility.

🔧 Key Features

📏 Optimized for 1:18 Scale Bodies

• Extended wheelbase for better compatibility with modern 1:18 shells

• Adds stability at high speeds

• Smoother cornering, even on tight tracks

• Instantly noticeable handling improvements

⚙️ Effortless Installation

• Designed for plug-and-play simplicity

• Quick, clean fit with minimal adjustments

• Perfect for both beginners and advanced builders

🏁 Full Carbon Fiber Construction

• Ultra-rigid, ultra-light full carbon chassis

• Improves acceleration, cornering, and durability

• High-tech carbon weave look that stands out on and off the track

🔋 Adjustable Battery Tray

• Fits a wide range of battery sizes and types

• Position your pack for perfect weight distribution

• Tailor your setup for racing or casual driving

⚡ Brushless-Ready Design

• Supports brushed or brushless motor upgrades

• Extra room for clean layout of ESC, wires, and components

• Once upgraded, expect a noticeable boost in power and speed

🌬️ Aerodynamic Body Optimization

• Modeled for real airflow efficiency

• Low drag design = maximum top speed

• Sharp looks backed by serious performance gains

🛠️ Ready to Upgrade?

This chassis brings race-level performance to your 1:18 RC car — without the complexity. Whether you’re hitting the track or building a showpiece, it’s the foundation your Micro B deserves.

Rear shock mount for the MWX Formula