* 1.1/8", 45°Ã45° ACB Upper * 1.5", 36°Ã45° ACB Lower * For tapered 48mm - 56mm OD head tube * For 1.1/8" to 1.5" tapered fork * Alloy top cover * Angular Contact Bearing (black seal) * Stack height 15.5+0.7=16.3mm * Weight: 77g