The AbsoluteBlack Oval Chainguide is the world's first chain guide engineered exclusively for oval chainrings. Unlike standard guides, it maintains chain security across every crank position, not just round-ring sweet spots. A fully adjustable chainline ranging from 48–53mm ensures compatibility with virtually any bike configuration. Details Mount: ISCG05 Chainline: 48-53mm (Boost compatible) by every 0.5mm using 4 spacers (included) Capacity: 26-34T Oval or 28-36T Round Compatibility: 1x10, 1x11 or 1x12 drivetrain with AB oval or round chainring Material: Backplate: 7075 aluminium, Cage: GF + PA66 polymer composite, Bolts: Titanium Torx T25 Included: Complete chain guide; chainline spacer set (0.5, 1, 2, 3,5mm); 2x titanium M6 torx T25 bolts Weight: 22.2 grams