Topeak Zi:RAK Thru-Axle 12 x 1.5mm – Aluminum Rear Axle for Topeak Zi:RAK Rear Rack System, Compatible with 700C Road & Gravel Bikes, 170mm Length, 20mm Thread Length, Lightweight 50–60g (TA2420-SP02) | bike-racks

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.