XBILITY One 1/28 Performance RWD Chassis with TORQ TCM-1003 Servo

Updated Kit Highlights

The latest version of the XBILITY One 1/28 Performance RWD Chassis now includes:

• Upgraded Chassis — reinforced design for improved rigidity and precision.

• New Differential Shaft (XB1-048) — more reliable drivetrain core for consistent power delivery.

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The Ultimate Tuning Machine — Precision Starts at the Core 

Whether you're a seasoned racer or just stepping into the world of RC performance, this platform delivers a transformative driving experience. At the heart of its evolution are two game-changing upgrades: a completely reengineered ball differential and a race-inspired front knuckle system. Together, they redefine how precision, control, and reliability come to life on the track.

Key Features Overview

• Redesigned Ball Differential Stronger, smoother, and more dependable—eliminating common wheel fitment issues found in traditional setups.
• 1:8-Inspired Knuckles Race-proven design with zero axle trail promotes low resistance and rapid cornering. Easily fine-tune camber and track width.
• Innovative Front-End Geometry Adjustable roll center, camber gain, and caster (0–3°) deliver precise control over front-end behavior.
• Advanced Rear Tuning Multiple side link and spring seat positions allow you to customize rear grip and response—no spring swaps needed.
• Adjustable Rear Pivot Mounts Switch between agile or stable behavior with just a few screw changes. Grip or drift—it’s your call.
• Universal Battery Support Fits large 24mm hard cases and soft packs alike. Soft case users can shift placement to optimize weight balance.
• Upgraded Steering Rack Redesigned for maintenance ease and unmatched consistency. No more lost ball ends—ever.

TECHNICAL INNOVATION DETAILS

1.     New Differential – Stronger, Smoother, Smarter

Better wheel attachment solves problems of current differentials, where sometimes the wheel becomes loose or stuck. New rack, where the balls are fitted into the holes for better operation and to never lose them again during maintenance.

Traditionally, wheels are mounted directly to the differential axle. If the wheel bearing isn’t perfectly aligned, it can lead to poor performance or even a loose wheel.

That’s why we’ve introduced a new 3-point mounting system. This smart design eliminates alignment problems completely, making it easier to build and more reliable during every run. It’s a big step forward for our scale, and we hope it sets a new standard across the industry.

To support different setups, the kit includes  11mm wheels—with the 11mm version offering a +3mm offset for added tuning flexibility.

2.     Front knuckles inspired by 1/8 on-road design

Allow changes to track width and make camber adjustments easy. With zero front axle trail, the car rolls more freely, reducing resistance in corners and improving cornering speed.

·       Multi-position roll center and camber gain adjustment: With the differential holding everything tightly in place, you can fine-tune how weight shifts through corners and how the tires grip, with much better consistency and control.

·       Caster adjustability from 0° to 3°: The improved stability of the drivetrain allows sharper or smoother steering adjustments, whether you’re after fast, aggressive turning or calm, straight-line stability.

·       Side link mount flexibility: Since the drivetrain is more reliable, you're free to explore a wider range of suspension setups. This makes it easier to adapt your car to different tracks or driving styles—grip, drift, or anything in between.

3.     Included TORQ TCM-1003 High-Performance Servo — In Stealth Black

To complete the system, the kit comes with the TORQ TCM-1003—a premium micro servo not only built for speed and strength, but also finished in a sleek, all-black look from case to cable.

·       All-black CNC aluminum case delivers durability with a clean, minimalist profile

·       Black signal and power wires maintain the stealth appearance across your entire electronics setup

·       Coreless motor with titanium gears ensures quiet, precise operation

·       3.0kg torque and 0.052 sec speed (at 8.4V) provide crisp, immediate steering response

·       Supports 4.8V–8.4V input for flexible power compatibility

The blacked-out aesthetic isn’t just for looks—it reflects the performance-driven, purpose-built philosophy behind the build. Every detail is intentional.

4.     Power Your Way

• Fully compatible with all popular battery formats—from standard 24mm hard case packs to soft packs.
• For soft cases, adjustable battery positioning lets you shift weight distribution and tailor the car’s balance to your liking.

5. Rear-End Refinement

• Triple rear spring mount positions let you alter spring response without swapping components.
• Optional rear pivot mounts provide a spectrum of tuning—from ultra-agile to rock-solid stable.

 Complete Kit — Only $399 Everything you need to get race-ready right out of the box:

• 1 pc of Xbility ONE
• 1 pc of TORQ TCM-1003 Coreless Titanium Gear 7g Micro Digital Precision Servo for 1/28 Racing – a high-performance servo trusted for its lightning-fast response and rock-solid reliability
• 2pcs of upgraded 11mmx20mm precision rear CNC delrin wheels with +3 offset (front rims can be from any brand)
• Printed assembly and setup manual – step-by-step guidance to make your build smooth, whether you’re a first-timer or a seasoned pro

Push the Limits, Not the Wrench: This isn’t just a platform—it’s an engineering playground for racers and tinkerers alike. With the revamped front knuckle and differential at its core, it's precision you can feel in every lap.

DOWNLOAD MANUAL HERE