Thru-Axle for Zi:RAK (SRAM UDH)

The Topeak Zi:RAK Thru-Axle for SRAM UDH (Art No. TA2420-SP04) is a precision-engineered rear axle specifically designed to mount the Topeak Zi:RAK rear rack on bikes equipped with the SRAM Universal Derailleur Hanger system. Constructed from lightweight and durable aluminum, this 170mm thru-axle features a 12mm diameter and 20mm threaded section for secure rack attachment. The included spacers allow fine-tuned adjustment across frame types, ensuring perfect fitment and alignment. Ideal for gravel, road, or adventure bikes, it delivers stable and reliable rack installation while keeping total weight between 50–60 g.

• Optimized for SRAM UDH: Designed to integrate seamlessly with bikes using the SRAM Universal Derailleur Hanger standard.
• Durable Aluminum Build: High-quality aluminum construction offers a strong yet lightweight 50–60 g setup.
• Precision Fitment: 12mm diameter and 170mm length with 20mm thread section for exact alignment and stability.
• Rack Compatibility: Engineered for perfect connection with Topeak Zi:RAK rear racks to ensure vibration-free performance.
• Adjustable Spacers: Includes multiple spacers for customized installation across various frame geometries and axle standards.


Manufacturer Sku: TA2420-SP04
Todson Sku: 63102424