BDH H2SQ DUAL-MODE SHIFTER Overview
BDH H2SQ DUAL-MODE SHIFTER
The BDH H2SQ represents the next generation in mechanical simulation hardware. Built on over two years of testing and iteration, the H2SQ improves upon our proven H1SQ platform with a new dual-rail architecture, mechanical enhancements, and practical refinements developed through real-world racing experience.
KEY ADVANTAGES:
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TRUE DUAL-RAIL DESIGN: Inspired by real gearboxes, our selector architecture enhances shift precision and alignment.
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HEX DRIVE- New Hex drive ensures the durability and centre positioning of the shifter runs true whilst mitigating play
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DUAL-MODE OPERATION: Seamlessly switch between gated H-pattern and spring-loaded sequential modes.
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INDEPENDENT SHAFTS: Dedicated shafts for each mode improve feedback and consistency.
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MECHANICAL MODE COLLAR: Engages mechanical locks and remaps sensors for mode-specific input.
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SENSOR LOGIC: 9th sensor disables H-pattern logic and enables 9th/10th inputs in sequential mode for clean software compatibility.
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USB-C UPGRADE: A robust, external port replaces internal PCB-mounted connections.
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HAND-TUNED MECHANISM: Each unit is calibrated for gate resistance and travel.
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FULL METAL CONSTRUCTION: Aircraft-grade aluminium and tensile steel ensure long-term durability.
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H-SHIFT SMOOTHNESS: Dual-shaft alignment reduces play, offering a slicker, faster engagement.
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SEQUENTIAL LOCKOUT: Side-to-side shaft lock allows crisp up/down shifting without gear path interference.
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BUILT TO FOR COMMERCIAL AREAS: Ideal for sim centres, rally schools, and driver training programs.
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IMMERSIVE FEEL: Designed by real-world rally and circuit drivers to replicate actual mechanical shifting.
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COMPACT AND SERVICEABLE: Easy access for maintenance and modular replacement.
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LIFETIME WARRANTY: Confidence that lasts for both personal and commercial users.
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MOUNTING FLEXIBILITY: Compatible with all major sim rig platforms.
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CHOSEN BY MOTORSPORT UK: Trusted hardware for their driver development academies.
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AUTHENTIC SHIFT FEEL: Machined detents and robust gate tolerances give every gear a satisfying mechanical click.
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MIS-SHIFT MINIMIZATION: Precise shaft guidance improves performance under pressure.
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TRUE RACE DNA: Derived from real-world motorsport mechanics including F1, Group A rally, and touring cars.
HOW THE H2SQ WORKS:
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In H-pattern mode, both shafts move in unison, delivering enhanced tactile feedback and smoother motion.
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In sequential mode, the secondary shaft locks into position, activating a spring-loaded return and reassigning signal output to 9th and 10th inputs.
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The mode collar simultaneously adjusts mechanical function and signal routing for accurate, conflict-free operation in software.
This approach mirrors the selector systems found in race gearboxes — not just a sim-safe solution, but a true mechanical representation of what drivers feel on the track.
REAL-WORLD INFLUENCE
Many performance vehicles rely on dual or triple-rail gearboxes for strength and precision. The H2SQ draws inspiration from:
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Mazda MX-5 – Crisp Aisin gearbox feel that informed the original H1.
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Honda Civic Type R – Legendary shift accuracy thanks to dual selector rods.
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Escort RS Cosworth – Rally-spec twin-rail dog boxes built for stage durability.
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Porsche G50 – Classic mechanical precision with multi-rail shaft logic.
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BMW M3 (E30/E36) – Getrag gearboxes praised for analog shift feel.
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Toyota GR Yaris/Corolla – WRC-informed rail architecture designed for high torque.
The H2SQ isn’t just a high-performance sim shifter. It’s a mechanical homage to the engineering that defines real racing. Whether you're building muscle memory for the track, training at an academy, or seeking unmatched immersion in your home setup, the H2SQ is the tool to elevate your experience.
Built by racers, for racers.
- MJMometto J.Verified BuyerReviewingLeft/Right Side Shifter/Handbrake Upgrade Kit - BlackRated 3 out of 5 stars2 weeks agoLevier
Super solide très bien fait
La plaque un peu trop grande mais fait son travail
Par conte pas adapté pour Le Logitech G RS Shifter & Handbrake Il a fallu que je reperce.
Was this helpful?Trak Racer CA1 week agoHey Mometto,
Thanks for the detailed feedback! We’re glad to hear you found the Side Shifter/Handbrake Upgrade Kit super solid and well made. We also appreciate the honest notes regarding the plate size and compatibility with the Logitech G RS Shifter & Handbrake. Feedback like this is extremely valuable and helps us continue improving compatibility information and future product revisions.
We appreciate you taking the time to share your experience, and we hope the setup continues to serve you well on track 🏁
Trak Racer Team
- MVMichele V.Verified BuyerReviewingLeft/Right Side Shifter/Handbrake Upgrade Kit - BlackI recommend this productRated 5 out of 5 stars3 weeks agoProdotto ok
Ottimo prodotto così come tutta la postazione, solida e ben fatta.👍
Was this helpful?Trak Racer CA2 weeks agoHey Michele,
Thanks for the awesome feedback!
We’re thrilled to hear you’re enjoying the product and the full setup. Solid build quality and durability are exactly what we aim for, so it’s great to know it’s delivering on track. Enjoy the races! 🏁
Trak Racer Team
- WKWilliam K.Verified BuyerReviewingBDH H2SQ DUAL-MODE SHIFTERI recommend this productAge Range 25 - 34Rated 5 out of 5 stars1 month agoUnreal shifter
It definitely takes some “breaking in,” but now with 45 hours on it I can confidently say that it is the smoothest and nicest shifter I’ve ever felt.
Was this helpful?Trak Racer CA3 weeks agoHey William,
Thanks for the awesome feedback! We’re really glad you stuck through the break-in period. It’s great to hear that after 45 hours the H2SQ V2 is delivering that smooth, refined feel. Enjoy every shift and happy racing!
Trak Racer Team
- SMScott M.Verified BuyerReviewingTR Gen 2 Shifter Mount and Side Chassis Support with TR Support Plate - BlackI recommend this productAge Range 55 - 64Rated 4 out of 5 stars4 months agoExactly what I needed
My ONLY complaint, and why a 4* review. A missing parts bag, but I've plenty of spare parts/screws etc..
to compensate for such a rare mistake.
Everything bolted up perfectly, my Simagic Q1S bolts up perfectly, no issues here.
-See you on the podium !!
Was this helpful? - KHKane H.Verified BuyerReviewingTR Gen 2 Shifter Mount and Side Chassis Support with TR Support Plate - BlackI recommend this productAge Range 35 - 44Rated 5 out of 5 stars7 months agoShifter arm mount
Defiantly need this very sturdy no shaking fast shipping highly recommend hands down best out there
Was this helpful?Trak Racer CA7 months agoThanks for giving this awesome 5 star review Kane. The shifter mount can indeed take a good beating when it comes to sturdiness. No matter if entry level shifter or high quality heavy duty sequentials it´s up for the task.
Enjoy it and shift up to next gear.
The Trak Racer Team























