Qubic System QS-CH2 Traction Loss System
From: £9,000.00 INC. VAT
The Qubic System QS-CH2 Traction Loss System is a professional 2DOF motion platform that adds surge and yaw movement to your simulator, providing physical feedback for traction loss, oversteer, braking and acceleration.
Use the QS-CH2 as a standalone 2DOF motion system or combine it with a compatible Qubic 3DOF actuator setup to create an advanced 5DOF motion simulator with pitch, roll, heave, surge and yaw.
SimRacer UK is an authorised Qubic System distributor in the UK, providing specialist motion-system advice, configuration and complete simulator installation support.
Product Info
Qubic System QS-CH2 Traction Loss System
The Qubic System QS-CH2 Traction Loss System is a professional 2DOF motion platform that adds surge and yaw movement to a racing simulator, creating physical feedback for traction loss, oversteer, acceleration and braking.
Rather than moving only the seat, the QS-CH2 is designed to move the entire simulator cockpit, allowing the driver to physically feel rear-end movement and longitudinal acceleration cues.
With 100mm actuator stroke, ±50mm surge movement, ±7.2° yaw movement and support for up to 300kg gross moving load, the QS-CH2 can be used as a standalone 2DOF system or combined with a compatible Qubic 3DOF actuator system to create an advanced 5DOF motion simulator.
SimRacer UK is an authorised Qubic System distributor in the UK, supplying Qubic motion hardware with specialist system specification, compatibility advice and complete simulator installation support.
Feel Traction Loss & Oversteer
One of the biggest limitations of a static simulator is the difficulty of physically communicating what the rear of the virtual car is doing.
The QS-CH2 adds yaw movement, allowing the complete simulator to rotate in response to telemetry from the simulated vehicle.
During oversteer or loss of rear grip, this movement provides an additional physical cue through the driver’s body, helping communicate the direction and behaviour of the virtual car.
This makes traction loss particularly relevant for rally and drifting, while also providing useful vehicle feedback for GT, Formula and other circuit racing simulations.
Surge Feedback for Braking & Acceleration
The QS-CH2 doesn’t only provide traction loss.
Its second degree of freedom is surge, creating forward and backward linear movement of the simulator.
The platform provides up to ±50mm of surge travel, allowing physical movement to accompany acceleration and braking events.
This gives the QS-CH2 two distinct motion axes:
Yaw – rear-end movement, oversteer and traction-loss cues
Surge – longitudinal acceleration and braking cues
Together, they provide physical feedback that a conventional static cockpit cannot reproduce on its own.
2DOF Surge & Yaw Motion
The QS-CH2 uses two longitudinal linear actuators to move the complete simulator platform.
Its motion envelope provides:
| Motion Axis | Movement |
|---|---|
| Surge | -50mm to +50mm |
| Yaw | -7.2° to +7.2° |
Qubic’s current documentation specifies surge performance of up to 450mm/s velocity and 0.56G acceleration, with yaw performance up to 70°/s and 1500°/s².
The acceleration is intentionally limited for safety.
QS-CH2 as a Standalone Motion System
The QS-CH2 can be used as a standalone 2DOF motion platform, so you don’t have to own an existing Qubic 3DOF actuator system before adding traction loss and surge.
When operated independently, however, the QS-CH2 requires the Qubic QS-MC6 set, which includes the M10 controller and Motion Lock button.
The QS-MC6 is not included with the standard QS-CH2 system and must be added separately when required.
If you already use a compatible QS-210 or QS-220 motion configuration with the necessary controller, an additional controller is not required.
Add QS-CH2 to a Qubic 3DOF Motion System
The QS-CH2 becomes particularly interesting when combined with a compatible Qubic 3DOF actuator system.
A four-actuator Qubic 3DOF configuration provides:
Pitch + Roll + Heave
Adding the QS-CH2 introduces:
Surge + Yaw
Together, the simulator can therefore provide:
Pitch + Roll + Heave + Surge + Yaw = 5DOF
This creates a substantially more comprehensive motion system capable of communicating vertical movement, chassis attitude, braking, acceleration and traction loss through different axes of physical movement.
3DOF vs 5DOF Sim Racing Motion
A 3DOF motion system and a 5DOF system with QS-CH2 provide different levels of vehicle feedback.
A typical four-actuator Qubic 3DOF system provides pitch, roll and true heave.
This allows the simulator to reproduce physical cues associated with:
- Braking and acceleration through pitch
- Cornering through roll
- Kerbs, bumps and elevation through heave
Adding the QS-CH2 introduces surge and yaw.
Surge adds longitudinal movement, while yaw provides the rear-end rotation required for more convincing traction-loss and oversteer feedback.
For drivers particularly interested in rally, drifting or advanced vehicle dynamics, these additional axes can significantly change the type of physical feedback available from the simulator.
QS-CH2 for Rally & Drift Simulation
Traction loss is particularly relevant for rally and drift simulation because controlling rear-wheel slip is a fundamental part of both disciplines.
The yaw movement generated by the QS-CH2 allows the simulator to physically react when the rear of the virtual vehicle begins to rotate.
This provides another physical reference alongside the steering wheel, display and audio when catching slides or controlling sustained oversteer.
For drivers building a simulator specifically around rally, drifting or vehicle-control training, traction loss can therefore be one of the most important additional motion axes.
QS-CH2 for GT & Formula Racing
Traction loss isn’t limited to rally and drift.
The QS-CH2 is also suitable for GT and Formula simulation, where yaw movement can communicate rear-end instability while surge provides additional longitudinal feedback during braking and acceleration.
Combined with a Qubic 3DOF platform, the system can therefore reproduce a wider range of vehicle movement across circuit racing disciplines.
Can the QS-CH2 Be Added Later?
Yes.
One of the advantages of Qubic’s modular motion architecture is the ability to develop a simulator in stages.
You can begin with a compatible QS-210 or QS-220 3DOF motion system and add the QS-CH2 later when you want to introduce surge and traction-loss movement.
Alternatively, the QS-CH2 can initially be used as a standalone 2DOF system and incorporated into a wider compatible Qubic motion configuration later.
This makes it possible to spread the cost of a high-end motion simulator across different stages rather than installing the complete system at once.
Cockpit Compatibility
The QS-CH2 is designed to move the entire simulator cockpit, so cockpit dimensions, rigidity, mounting arrangement and total moving weight all need to be considered.
Qubic specifies a gross moving load of up to 300kg.
The platform itself weighs approximately 160kg, making this a substantial motion system that requires appropriate floor space and installation planning.
Qubic states that the complete system requires approximately 1.5m² of floor space, although additional clearance around the moving simulator should also be considered when planning an installation.
If you already have a cockpit and are considering adding a QS-CH2, SimRacer UK can advise on compatibility and the overall motion configuration before purchase.
Does the QS-CH2 Work with the QS-210 & QS-220?
Yes.
The QS-CH2 is designed to integrate with compatible Qubic QS-210 and QS-220 actuator configurations, allowing surge and yaw to be added to an existing Qubic motion platform.
When combined with a compatible four-actuator 3DOF setup, the result is a 5DOF Qubic motion system.
Correct system configuration and controller requirements depend on the hardware already installed, so contact SimRacer UK if you are expanding an existing Qubic simulator.
Is Traction Loss Worth Adding to a Motion Simulator?
That depends on the type of driving and physical feedback you want.
A conventional 3DOF motion platform can already provide convincing pitch, roll and heave movement, but it cannot provide the same independent yaw movement associated with rear-end rotation and traction loss.
The QS-CH2 is particularly relevant if you want to physically feel:
Oversteer and rear-end movement – through yaw
Acceleration and braking – through surge
For rally and drift simulation, traction loss can be especially valuable because rear-wheel slip is such an important part of controlling the vehicle.
For GT and Formula simulation, it provides an additional layer of vehicle-dynamics feedback beyond conventional 3DOF cockpit movement.
QS-CH2 vs a Seat Mover
A seat mover and the QS-CH2 perform very different jobs.
A seat mover, such as the Qubic QS-H13, moves the driver’s seat to provide physical cues directly through the body.
The QS-CH2 moves the entire cockpit and is specifically designed around surge and yaw.
It is therefore not simply a larger alternative to a seat mover. The two approaches provide different types of motion and are suited to different simulator configurations.
QS-CH2 vs Qubic QS-BT1 Belt Tensioner
The QS-CH2 and QS-BT1 also provide different types of physical feedback.
The QS-CH2 physically moves the complete cockpit to provide surge and yaw, while the QS-BT1 changes tension through the racing harness.
The QS-BT1 is particularly effective for adding body-load and braking cues without moving the simulator, whereas the QS-CH2 provides actual platform movement.
Advanced simulator builds can use belt tensioning and cockpit motion together rather than choosing between them.
Who Is the Qubic QS-CH2 For?
The QS-CH2 is particularly suited to drivers and organisations looking for an advanced level of motion simulation, including:
- Rally and drift simulators
- GT and Formula racing simulators
- High-end home motion simulators
- Existing Qubic 3DOF owners wanting to upgrade to 5DOF
- Professional driver training
- Motorsport simulation
- Commercial simulator installations
- Complete bespoke motion simulator projects
Why Buy the Qubic QS-CH2 from SimRacer UK?
SimRacer UK is an authorised Qubic System distributor in the UK, supplying Qubic motion hardware with specialist UK-based advice and support.
The QS-CH2 is a significant motion-system installation rather than a conventional plug-and-play sim racing accessory, so correct specification of the cockpit, controller, existing motion hardware, moving load and installation requirements is important.
We can supply the QS-CH2 individually or incorporate it into a complete Qubic motion simulator.
- Authorised Qubic System distributor
- Genuine Qubic System hardware
- Manufacturer warranty support
- Specialist motion system advice
- QS-CH2 compatibility and configuration support
- Basingstoke sim racing showroom
- Complete motion simulator specification
- Pre-build and system configuration available
- Professional and commercial simulator solutions
- Delivery and installation available for complete simulator builds
Qubic System QS-CH2 Technical Specifications
| Specification | QS-CH2 |
|---|---|
| Product Type | Traction Loss & Surge Motion Platform |
| Architecture | 2DOF |
| Motion Axes | Surge & Yaw |
| Actuator Stroke | 100mm |
| Surge Excursion | -50mm to +50mm |
| Yaw Excursion | -7.2° to +7.2° |
| Surge Velocity | Up to 450mm/s |
| Surge Acceleration | Up to 0.56G |
| Yaw Velocity | Up to 70°/s |
| Yaw Acceleration | Up to 1500°/s² |
| Gross Moving Load | Up to 300kg |
| Platform Weight | Approx. 160kg |
| Approx. Floor Space | 1.5m² |
| Power Supply | 120/230VAC ±10%, 50–60Hz |
| Motion Integration | Compatible Qubic Motion Systems |
| Intended Use | Racing, Driving & Flight Simulation |
What’s Included?
The Qubic System QS-CH2 is supplied as the complete traction-loss and surge platform with its required motion hardware and dedicated power system.
The exact package configuration should be checked at the time of purchase, particularly where the QS-CH2 is being incorporated into an existing Qubic System installation.
QS-MC6 Motion Controller
If the QS-CH2 is being used as a standalone motion system, a Qubic QS-MC6 controller set is required.
If a compatible QS-210 or QS-220 system is already installed and using the appropriate Qubic motion controller, only one controller is required.
Contact SimRacer UK if you’re unsure whether the QS-MC6 needs to be added to your configuration.
Related Products
FAQs
What does the Qubic QS-CH2 do?
The QS-CH2 is a 2DOF motion platform providing surge and yaw movement.
Surge creates forward and backward movement associated with braking and acceleration, while yaw rotates the simulator to provide physical feedback associated with oversteer and traction loss.
Is the QS-CH2 a traction loss system?
Yes. Traction loss is one of the primary purposes of the QS-CH2.
Its yaw movement allows the entire simulator to rotate in response to rear-end movement and loss of grip in the simulated vehicle.
Can I use the QS-CH2 without another Qubic motion system?
Yes. The QS-CH2 can operate as a standalone 2DOF system, but a QS-MC6 controller set is required when there isn’t already a suitable Qubic motion controller in the system.
What does adding the QS-CH2 to a 3DOF system give me?
A compatible Qubic 3DOF system provides pitch, roll and heave.
The QS-CH2 adds surge and yaw, creating a five-axis configuration:
Pitch + Roll + Heave + Surge + Yaw.
Is traction loss useful for rally and drifting?
Yes. Rally and drifting involve frequent rear-wheel slip and oversteer, making yaw feedback particularly relevant.
The QS-CH2 physically rotates the simulator to provide an additional cue when the rear of the virtual vehicle moves.
Is the QS-CH2 useful for GT and Formula racing?
Yes. Although traction loss is particularly attractive for rally and drift simulation, yaw can also communicate rear-end instability in GT and Formula cars, while surge provides additional braking and acceleration feedback.
Can I add the QS-CH2 to my Qubic motion system later?
Yes. A compatible QS-210 or QS-220 3DOF simulator can be expanded with the QS-CH2 later, providing an upgrade route from 3DOF to 5DOF motion.
How much weight can the QS-CH2 move?
Qubic specifies a gross moving load of up to 300kg for the QS-CH2.
The total simulator configuration should therefore be considered when specifying the cockpit, seat, wheelbase, pedals and other equipment.
How much space does the QS-CH2 require?
Qubic states that the complete QS-CH2 system requires approximately 1.5m² of floor space.
Additional clearance should also be allowed around a moving simulator for safe operation.
Can SimRacer UK install a QS-CH2 as part of a complete motion simulator?
Yes. SimRacer UK can specify the cockpit, Qubic motion hardware, wheelbase, steering wheel, pedals, displays and gaming PC and provide pre-build, configuration, delivery and installation for complete motion simulator projects.
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