Topeak Zi:Rak Thru-Axle

The Topeak Zi:Rak Thru-Axle allows you to securely mount a compatible rear rack to a bike frame with a thru-axle system. It uses a precision-machined axle with specific thread pitch options and a fixed 170mm axle length with a 20mm thread length to ensure correct engagement and stable rack attachment.

Key Features:

• 170mm Axle Length Specification: Built to a fixed 170mm axle length, this design ensures correct spacing across compatible 700c road and gravel frames, providing a secure interface that supports consistent alignment of the rear rack and results in stable load carrying without unwanted movement.
• 20mm Thread Length Design: The 20mm threaded section allows sufficient engagement within the dropout threads, ensuring a firm and reliable connection that reduces the risk of loosening under load and leads to dependable rack support during regular use.
• Multiple Thread Pitch Options (1.0, 1.5, 1.75mm): Available in three thread pitch variants, this axle matches different frame standards, ensuring proper thread compatibility that prevents cross-threading and delivers a secure fit for safe and effective rack mounting.

Zi:Rack Compatibility Interface: Designed specifically for use with the Topeak Zi:Rack system, the axle provides a direct mounting solution that integrates with the rack structure, allowing you to attach luggage-carrying equipment in a controlled and stable manner.

You can use this thru-axle to carry loads on a road or gravel bike with a rack system that stays firmly in place during rides. It supports tasks such as commuting or transporting equipment by keeping the rack aligned and secure. This makes it a practical and reliable addition to your bike setup when you need consistent rack mounting.