Seating tubeless tyres correctly requires an instant high volume shot of air. Control Tank is pumped up using a conventional track pump (with a pressure release valve to prevent over filling) before deLivering 1450cc of air instantly to seat a tubeless tyre on the rim, before switching back to the conventional pump to reach the precise desired pressure. Control Tank's Auto Head™ valve automatically switches between Presta and Schrader for road and mountain bike use, two tough feet provide a stable base and the steel tank construction offers long lasting service.