Qubic System QS-BT1 seat belt tensioner for sim racing immersion
Qubic System QS-BT1 seat belt tensioner, dual channel direct drive device for sim racing immersion and enhanced motion platform experience
Qubic System QS-BT1 seat belt tensioner components for sim racing immersion, including cables, tensioners, and power supply.

Qubic System QS-BT1 seat belt tensioner

Trustpilot

The QS-BT1 puts sustained G-forces on your body - the one thing screens and motion platforms alone can't deliver. Two independent direct drive channels (200 N each, same technology as the QS-220) tension your harness to simulate braking, cornering, traction loss and engine vibrations - standalone or on top of a motion platform.

  • 2× 200 N channels (400 N combined), 8-step plug & play setup
  • Standalone, or with QS/PS/HS and Next Level Racing motion platforms
  • Racing + flight sim effects, multifunctional RGB
  • Designed & made in Poland, EU

Note! Requires a bucket seat with shoulder-height belt slots and a racing harness (not included). Standalone use needs the Motion-Lock remote switch (sold separately). Runs exclusively with QubicManager/ForceSeatPM - not compatible with SimHub.

€1.674,64
incl. VAT
Red square icon with white text '24h' indicating 24-hour service or availability.

Place your order before 16:30 DHL Express, or 15:00 UPS Express Saver for next business day delivery.

Red circular icon with the word 'FREE' in bold white letters.

FREE DHL Ecomony/UPS Standard shipping for orders over 390€ and DHL Express/UPS Express Saver over 1190€

Red shield with number 3, symbolizing protection and security.

3 year warranty. B2B too!

Shipping costs and estimated delivery time?

Our webshop is directly connected to DHL and UPS systems, showing real-time shipping prices and accurate delivery date estimates at checkout.

Shipping is insured.

-----------------------------------------

DHL Express

  • next-business-day delivery in many EU destinations
  • orders placed before 16:30 are dispatched the same day
  • limitations: max. 27 kg, not available for cockpits or seats.

-------------------------------------

DHL Economy

  • orders placed before 16:30 are dispatched the same day
  • no weight limit

---------------------------------

UPS Express Saver

  • faster UPS option
  • orders placed before 15:00 are dispatched the same day
  • next-business-day delivery in many EU destinations
  • no weight limit

--------------------------------------

UPS Standard

  • orders placed before 15:00 are dispatched the same day
  • no weight limit
  • Saturday delivery is available for FREE is in many bigger cities of these countries: UK, DE, FR, NL, BE, IT, ES, PL
Manual, Downloads and Technical details

Manual
Qubic System QS-BT1 seat belt tensioner Manual download



Download
Qubic system QS-BT1 seat belt tensioner Software download



Technical details:

  • Dimensions: (L × W × H) 561 mm / 22.13 in x 99 mm / 3.90 in x 138 mm / 5.43 in
  • Weight: 12 kg / 26.46 lbs
  • Packing box dimensions: (L × W × H) 660 x 255 x 180 mm / 25.98 x 10.04 x 7.09 in
  • Packing box weight: 19 kg /42 lb
  • Power Supply Weight: 2.8 kg / 6.17 lbs
  • Power Source: 4A/115VAC, 2A/230VAC
  • Rated Power: 321 W
  • Inrush Current: 20A/115VAC, 40A/230VAC
  • Protection Class: 1
  • Interface: USB
  • Number of Independent Channels: 2
  • Pulling Force: 20.5 kg / 45 lbs / 200 N per channel
  • Storage Temperatures: +5 °C to +40 °C
  • Full Performance Temperatures: +5 °C to +35 °C
  • Supported Effects: Depends on Specific Game
  • Multifunctional RGB
  • Maximum Length of USB Cable: 3 m
  • Maximum Length of Motion-Lock Cable: 3 m
Compatibility

PC (Windows) only!
QS-BT1 runs exclusively with QubicManager/ForceSeatPM - it cannot be controlled from SimHub, SimTools or Sim Racing Studio. Consoles: Gran Turismo 7 on PS5 works via a Windows PC intercepting telemetry (supported as-is).


Motion platform compatibility

  • Works fully standalone - no motion platform required
  • Qubic System platforms: QS-H13, QS-210, QS-220, QS-CH2, QS-S25, QS-S35, QS-V20
  • PS motion platforms (custom mounting brackets required)
  • Next Level Racing Motion V3, Motion Plus, Traction Plus
  • 3rd party motion platforms - QubicManager runs in parallel with your platform software

Seat movers: QS-BT1 mounts to the top frame only, close to the pivot point, and reduces the allowed user weight.


Cockpit, seat and harness compatibility

  • Aluminium profile cockpits: universal mounting adapters included
  • QS-CH1, QS-S25, QS-V20 and NLR Motion V3: dedicated installation kits sold separately
  • Bucket seat with belt slots at shoulder height, wide enough for free belt movement (not included)
  • Racing harness 4/5/6-point - 3-inch 5-point is the most tested, FIA-grade recommended (not included)


Note! Standalone use requires the Motion-Lock remote switch (sold separately). Connected to an existing Motion-Lock circuit (QS-210, QS-220, QS-V20, QS-S25, QS-DD-20), no additional switch is needed.

Warranty and returns

Warranty and legal guarantee
The manufacturer’s commercial warranty period for this product is shown below the Add to cart button. If you buy as a consumer, you also have a minimum two-year legal guarantee from GPerformance as the seller. The manufacturer’s warranty is additional and does not replace or limit your statutory rights.

If something goes wrong, contact us - we’ll handle the claim, including any coordination with the manufacturer. Shipping cost is on us.

Need help choosing?
If you’re unsure whether a product is compatible with your setup, message us before ordering. We’ll help you choose the right option. Honest advice is always free.

14-day right of withdrawal
If you buy as a consumer and change your mind, let us know within 14 days of receiving the product - no reason is required. You can use the Withdraw from Contract link in the footer or email support@gperformance.eu.

After notifying us, you have a further 14 days to send the product back. You cover the direct cost of return shipping. If the product is faulty or you received the wrong item, contact us first and we’ll arrange the appropriate return.

Inspecting and returning a product
You may unbox and inspect the product as you would in a shop. Please handle it carefully and return it complete, with all accessories, cables and manuals. Keep the original packaging and protective materials, as they help protect the product during return transport.

If the product has been handled or used beyond what is necessary to establish its nature, characteristics and functioning, you still retain the right to withdraw, but we may reduce the refund to reflect the resulting loss in value.

Do you still have questions?
Questions about compatibility, warranty or a return? Email support@gperformance.eu - a real person, often the owner, will reply.

What is included?

1× Main unit (QS-BT1)
1× USB cable
1× External power supply with power cord
2x Low friction inserts and velcro strips for seat belts slots
2× Universal mounting adapters for aluminium cockpits with necessary hardware
2× Belt buckles and fasteners
1× Motion-Lock jumper
1× Motion-Lock interlink cable

  • Not included:
    Seat belts
    Cockpit
    Bucket seat
    Motion-Lock remote switch (sold separately)
    Dedicated adapter for other cockpits (sold separately)
Motion platform vs QS-BT1 sustained force comparison - 400 N combined belt tension

Feel the G-forces your screen can't show

Classical motion platforms depend on Earth's gravity for prolonged accelerations - even a 20-degree pitch produces only about 165 N of perceptible sustained force on your chest. The QS-BT1 generates 200 N per channel, 400 N combined, and holds you in the braking zone for as long as the car decelerates.

Use it standalone, or pair it with a motion platform: the belts take over the sustained G-forces, and the platform spends its full range on everything else. Layered realism, each system doing what it does best.

Load video: Qubic System QS-BT1 braking simulation demo - harness loading under deceleration

Braking you can feel in your chest

Slam the brakes and the harness loads up instantly - the complex dynamics of deceleration pressed into your body, not just shown on screen. Wheel locks, slip and pre-impact protection each have their own distinct feel.

Racing effects include braking, lateral accelerations, centrifugal force in cornering, wheel slip and lock, traction loss and oversteer, gear changes, engine vibrations with rev limiter, vertical G-force and road harshness - depending on what the game's telemetry provides.

Two independent channels, every direction

Two independently controlled channels shape the force on each shoulder separately - the outside belt loads up through a corner, slack releases into oversteer, and every transition lands where your body expects it.

The drive is the same direct drive technology as the QS-220 and QS-DD-20: no gearbox, no backlash, motor torque directly proportional to the force on your shoulders. Fine details survive all the way to the belt.

Correct seat belt slot height for QS-BT1 - slots level with the shoulders

Little details that matter

The seat decides half the experience: belt slots should sit level with your shoulders - too low pulls you down instead of back, too high softens the feedback. The slots must be wide enough for the belt to move freely; low-friction inserts are included to keep the fine details alive.

Use a proper racing harness - 4, 5 and 6-point all work, with a 3-inch 5-point being the most tested combination. An FIA-grade harness is recommended for its stiffness and a locking mechanism that holds under load - for example the Sparco Competition H-3.

Load video: Qubic System QS-BT1 engine vibration and road texture demo - belt pulse effects

Every bump, curb and pulse - through the belts

The belts don't just pull - they pulse. Curbs, road texture, engine vibrations and gear changes arrive as short, crisp impulses on your shoulders, layered on top of the sustained forces.

It's a feedback channel the rest of your rig can't reach: force feedback lives in your hands, pedals under your feet - the QS-BT1 puts the track on your upper body.

What our customers say about this product

Trustpilot