Armstrong Mk II Carbon MastA stiff carbon mast at an accessible price. The foundation of the carbon mast range, the Mk lI Carbon Mast 15. 8mm offers strong value and versatility. It's ideal for riders upgrading from alloy, building fundamentals, or looking for a reliable carbon mast that works across all conditions. The Mk II Carbon Mast is the most accessible entry into the Armstrong carbon mast range. Re engineered from the original design, it delivers a stable, predictable