TACX Flat Thru Axle Insert S0052

The Tacx Flat Thru Axle Insert (Model S0052) is a critical component for converting a bike with a 12 mm thru-axle to be compatible with Tacx direct-drive smart trainers. Installed on the non-drive side, it pairs with the drive-side tapered insert to maintain proper axle alignment and structural integrity during rides.

Crafted to OEM standards, this insert ensures a precise, gap-free fit. Installation is clean and tool-free, allowing you to set up or swap as needed. Its hardened alloy construction gives it the durability to endure training stress and torque. Ideal for riders using NEO, Flux S, Flux 2, or other Tacx trainers, this insert completes the conversion setup and keeps your drivetrain stable and true.

FEATURES

Flat insertion design – Engineered to adapt the non-drive side 12 mm thru-axle interface for use with Tacx direct-drive smart trainers.

Non-drive side application – Complements the drive side insert (e.g. S0051) to provide a complete axle conversion setup.

OEM precision – Genuine Tacx / Garmin factory part ensuring exact tolerances and compatibility.

Press-fit install – Designed for straightforward insertion without requiring special tools or modifications.

Multi-trainer compatibility – Works across Tacx NEO, Flux S, Flux 2, and other direct-drive trainer models needing a flat insert.

Robust alloy construction – Made from durable, hardened alloy to withstand torque and repeated use.

SPECIFICATIONS

Model / Part Number: S0052

Application Side: Non-drive side insert

Axle Standard: 12 mm thru-axle

Installation Method: Press-fit, tool-free

Material: Hardened alloy

Function: Complements drive side insert to support cassette alignment

Finish / Surface: Machined, corrosion-resistant

Durability: Built for repeated use and indoor trainer torque loads