Recognised as the industry standard this in our opinion is the best proportional valve avaliable. Brake Bias Valves Manufactured to ISO 9001 Accreditation plus ALL obp Branded Products come with a 2 Year parts gaurantee. This unit fully regulates the front to rear brake pressure, by placing the valve in line to the rear brakes more pressure is then applied to the front giving a much better overall braking. Highest pressure reduction avaliable 60% over the full range Industry standard with fine adjustment Increase/decrease front to rear bias in cockpit. * Preset and lock option * Aluminium light weight body * Anti corrosive internals * Acurate and quick response FEATURES: CAN BE USED FOR SINGLE / DUAL WHEEL BRAKE BIAS ADJUSTMENT. 1001000+ PSI RANGE. PRECISE ADJUSTMENT FROM A FINE THREADED SHAFT. INCREASE/DECREASE FRONT TO REAR BIAS IN COCKPIT. Machined from aluminium billet. ANTI CORROSIVE INTERNALS. ACURATE AND QUICK RESPONSE. IN AND OUT THREADS ARE 3/8 -24 UNF. (CAN BE USED WITH ST