Ace Trucks | AF1 Low: Features & BenefitsAF1 Low - Available in sizes 22, 33, 44, 55 and 60. - Lowered baseplate for more size options across the range. (any AF1 hanger will fit an AF1 Low baseplate.) - 49mm height (4mm lower than standard AF1) - 33 grams lighter than standard AF1 - Light-weight hollow kingpins - New cross-beam pinch design - Top bushing: 10mm/91a - Bottom bushing: 12mm/86a LOW PROFILE | HIGH PERFORMANCE