Topeak Zi:RAK Thru-Axle 12 x 1.75mm – Aluminum Rear Axle for Topeak Zi:RAK Rear Rack System, Compatible with 700C Road & Gravel Bikes, Lightweight 50–60g (TA2420-SP03)

The Topeak Zi:RAK Thru-Axle 12 x 1.75mm (Art No. TA2420-SP03) is a precision-engineered rear axle designed for mounting the Topeak Zi:RAK rear rack on compatible 700C road and gravel bikes. Built from high-strength aluminum alloy, it provides reliable stability while keeping weight to a minimum. Featuring a 12mm diameter, 1.75mm thread pitch, and 170mm axle length, it includes multiple spacers for fine-tuned fitment across different frame standards. The 20mm thread section ensures a secure and vibration-free installation—perfect for touring, commuting, and endurance riding.

• Precision Fit: 12 x 1.75mm thread pitch with 170mm axle length provides accurate compatibility with modern gravel and road frames.
• Lightweight & Durable: Made from high-quality aluminum alloy for exceptional strength and low weight (50–60 g total).
• Secure Installation: 20mm thread depth ensures solid engagement and long-term rack stability on varying setups.
• Compatible with Zi:RAK: Specifically designed for Topeak Zi:RAK rear racks, offering a perfect alignment and reliable connection.
• Adjustable Spacers: Includes multiple spacers for fine adjustment, ensuring a customized fit across different dropout widths.