Narrow V-belt XPA open side V-belt, form-toothed. Upper belt width 12.7 mm Belt height 10 mm. The belt width can almost always deviate by 1-2 mm with V-belts. DIN 7753 / ISO 4184 These open-flanked V-belts are 15% - 20% more powerful than wrapped V-belts due to higher adhesive forces and reinforced fabric. We only supply high-quality branded European quality V-belts.