The Topeak Zi:RAK Thru-Axle 12 x 1.5mm (Art No. TA2420-SP02) is a precision-machined rear axle engineered to securely mount the Topeak Zi:RAK rear rack on modern 700C road and gravel bikes. Crafted from durable aluminum alloy, it features a 12mm diameter, 1.5mm thread pitch, 170mm overall length, and 20mm thread section for a stable, precise fit. Multiple included spacers allow easy adjustment for perfect alignment across varying frame geometries. Weighing only 50-60 g depending on configuration, it delivers lightweight strength for high-performance touring, commuting, or bikepacking. Precision Fit: 12 x 1.5mm thread pitch and 170mm axle length ensure compatibility with most 700C road and gravel bikes. Strong & Lightweight: High-quality aluminum alloy construction balances durability, stiffness, and minimal weight (50-60 g). Optimized Design: 20mm thread depth and precision machining provide a secure, rattle-free rack attachment. Rack Compatibility: Specially designed for use with Topeak Zi:RAK rear racks for stable, reliable performance. Easy Adjustment: Includes multiple spacers to fine-tune installation across various dropout and frame setups. Manufacturer Sku: TA2420-SP02Todson Sku: 63102422