The BDH H1SQ Dual Mode is a dual-mode shifter —H-pattern and sequential— fully mechanical for sim racing, compatible with PC via USB-C, with a 4 kg HE260 aluminium chassis and contactless Hall sensors, available in Silver and Full Black finishes.
Hand-crafted in York, England, the H1SQ integrates two independent mechanisms in a single unit: simply twist the selector collar to switch from an 8-position H-pattern shift to a sequential one, with no tools. With adjustable resistance, a Quaife WRC-style knob and high-tensile steel construction, it delivers a competition feel on aluminium profile cockpits and rigs.
Key features of the BDH H1SQ Dual Mode
- True dual mode: H-pattern (8 configurable positions) and sequential in a single unit, switching modes by twisting the selector collar.
- Adjustable shift resistance: tune the shift feel to your driving style.
- Premium construction: CNC HE260 aerospace aluminium and high-tensile steel, with no flex or premature wear.
- Selector collar with dual lock and a centralising CAM system for precise, error-free selection.
- Quaife WRC-style knob in nylon with a high-grip texture (M10×1.5 thread, compatible with other knobs).
- Contactless Hall sensors (zero lag) and proprietary BDH firmware, with no external power supply.
- 360° mounting with M8×1.25 points, compatible with most 8020 profile rigs.
Technical specifications
| Specification | Detail |
|---|---|
| Modes | Dual: H-pattern (8 gears) + sequential |
| Dimensions | 300 × 200 × 150 mm |
| Weight | 4 kg |
| Material | CNC HE260 aluminium, high-tensile steel, self-lubricating bronze bushings |
| Internal components | EN8 steel, PTFE spherical bearings, graphite bronze guides |
| Shift gate | Selector collar with dual lock and centralising CAM |
| Knob | Quaife WRC-style in nylon, M10×1.5 thread |
| Sensors | Contactless Hall (zero lag) |
| Connection | USB-C (2 m cable), 5 V DC via USB |
| Firmware | Proprietary BDH (no external supply) |
| Mounting | Universal, M8×1.25 points, 360° |
| Finishes | Silver, Full Black |
| Compatibility | PC (iRacing, Assetto Corsa, rFactor 2, ACC…) |
Compatibility
- Compatible with PC and all modern sim racing titles (iRacing, Assetto Corsa, rFactor 2, ACC…) via USB-C.
- Not compatible with consoles (neither PlayStation nor Xbox).
- Universal mounting on aluminium profile 8020 cockpits and rigs with 360° adjustability and M8×1.25 points; optional sandwich adapter.
- Includes a 2 m USB-C cable, mounting hardware (M8) and a quick-start manual.
Frequently asked questions
How do you switch between H and sequential mode?
By twisting the selector collar you go from H-pattern (8 positions) to sequential with no tools or software; a dual-lock mechanism prevents errors.
Can the shift resistance be adjusted?
Yes. The shift resistance is fully adjustable to match the feel to your driving style.
What sensors and connection does it use?
Contactless Hall sensors (zero lag) and a USB-C connection (2 m cable) powered by the USB port itself (5 V); proprietary BDH firmware, with no external supply.
What is it compatible with?
PC and all modern sim racing titles (iRacing, Assetto Corsa, rFactor 2, ACC…). It is not compatible with consoles.
What finishes are available?
Available in Silver and Full Black; both share the same mechanism and specifications.
How is it mounted?
Universal 360° mounting with M8×1.25 points on 8020 profile rigs; it accepts M10×1.5 knobs and an optional sandwich adapter.
Downloads and video
Download the BDH H1SQ manual.
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Frequently Asked Questions
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