The BDH S1 Sequential Shifter is engineered to replicate the true mechanical sensation of a race-car dog-box gearbox. Featuring the industry-first Dynamic Inertia Mechanism™, the S1 delivers authentic momentum transfer and engagement physics—not just spring tension, but the real inertial kick of genuine sequential selector mechanics.
Color: Black
Most sequential shifters rely solely on spring tension. The BDH S1 goes further, using a proprietary weighted inertia system to recreate the physics of real gearbox selector engagement—delivering a mechanical authenticity that's never existed in sim racing hardware before.
Unlike conventional sequential shifters that rely purely on spring tension, the S1's proprietary weighted cylindrical system translates lever motion into realistic momentum transfer. As you shift, the internal assembly of ball bearings, compression springs, and dampers produces a momentary inertial pulse—replicating the energy kick of an actual racing transmission selector. It's not imitation. It's mechanical authenticity, refined by BDH.
The S1's progressive mechanical setup replicates the resistance, preload, and engagement of a true sequential dog-box gearbox. Each pull or push delivers a purposeful, physical response—starting with initial resistance, followed by a crisp engagement point, and finishing with a natural return motion. This dual-stage system ensures every shift feels deliberate, confident, and indistinguishable from genuine race-car mechanics.
Machined entirely from aerospace-grade billet aluminium and finished in hard black anodising, the S1 is engineered for durability under heavy use. The internal weighted system utilises ball bearings, compression springs, and internal dampers to ensure smooth, consistent operation. This isn't a plastic housing with basic springs—it's a professional-grade mechanical shifter delivering durable engineering designed for lifelong performance.
The BDH S1 Sequential Shifter is available for pre-order at £590 (£60 off the £650 RRP). A £100 deposit secures your position in the limited first production batch, with the remaining balance invoiced before shipping in early 2026.
Your deposit is fully refundable within 14 days of payment. After this period, the deposit becomes non-refundable as we begin production planning and component procurement for your unit. This pre-order system ensures you receive your S1 Sequential as soon as the first batch is manufactured.
Limited first-batch availability. Expected delivery early 2026. Full refund available within 14 days of deposit payment.