MOTO-D 89 Degree Angled Valve Stems in Black for Motorcycles makes Tire Pressure Adjustment a Painless Task (no more wrestling the air chuck between the brake disc). Size: 8.3mm (0.327in): Fits Most Italian (Ducati, MV Agusta, Aprilia) and Triumph Motorcycles including racing wheels Carrozeria, Marchesini, OZ Racing). Black Anodized, Lightweight Billet Aluminum, 12 grams each, sold 2/set (front and rear tire). CNC Machined Angled Valves at 89° for Easy Access (compare vs. cheap sand cast units). Tightening torque is 7.4 ft lbs (10NM). Internal USA Schrader Valves Racetrack Tested. 1-Year Limited Warranty.