Garmin Tacx Direct Drive Freehub Body, pre-2020
Tacx Direct Drive Freehub Body, pre-2020
Tacx Direct Drive Freehub Body, pre-2020
Garmin

Garmin Tacx Direct Drive Freehub Body, pre-2020

$129.99
In Stock

OEM Garmin/Tacx replacement freehub body (T2805.51) for pre-2020 Neo and Flux direct‑drive trainers. Restores Campagnolo cassette compatibility and smooth indoor shifting.

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Product Details

Overview & Technology

Original-equipment Tacx freehub body manufactured to the Tacx/Garmin specification (part T2805.51). This pre‑2020 freehub body is the direct replacement for the Campagnolo spline interface on Neo (T2800), Neo 2 (T2850/T2850.60), Flux (T2900), Flux S (T2900S/T2900S.60) and Flux 2 (T2980/T2980.60) smart trainers. The assembly is engineered for indoor-direct-drive use: a CNC-machined alloy hub shell combined with hardened spline surfaces to resist cassette wear and deliver reliable, consistent engagement under high torque. Sealed bearing interfaces keep sweat and indoor contaminants out for longer service intervals, preserving the trainer’s smooth feel and precise power transfer.

Key Features & Benefits

What makes this replacement part worth choosing: • OEM fit: Garmin/Tacx part T2805.51 for perfect alignment and factory tolerances. • Campagnolo spline pattern: Directly accepts Campagnolo-compatible cassettes for road setups without adaptors. • Durable construction: Machined alloy body with hardened spline contact surfaces for long life under trainer loads. • Sealed interface: Bearings and seals designed to reduce maintenance and withstand indoor conditions. Replacing a worn or damaged freehub body restores shifting accuracy, reduces creaks and play, and keeps your trainer performing like new—especially important if you spend long hours training indoors.

Fit, Compatibility & Installation Notes

Compatibility: This freehub body is Campagnolo-compatible and fits pre-2020 direct-drive Tacx trainers listed above. It is not compatible with Neo 2T (T2875.60), Flux S (T2900S.60 A) or Flux 2 (T2980.60 A) variants—those later-model trainers require Garmin part 891051. Shipping dimensions are compact (5.5" x 3.25" x 2") and the unit ships light (~0.2 lb). The freehub body is sold as the replacement hub assembly; it will accept your Campagnolo cassette but does not include the cassette itself or the trainer’s axle hardware. Installation requires basic tools and mechanical experience—if you’re unsure, have a local shop or Forest Bikes service tech fit it for you.

Who This Is For

This part is aimed at road cyclists and indoor training enthusiasts who own a compatible Tacx direct‑drive trainer and run Campagnolo drivetrains. If you ride with a Campagnolo cassette on your smart trainer and are experiencing slop, skipping under load, or noisy engagement, this OEM replacement restores proper spline fit and smooth shifts. Also useful for performance-minded cyclists who prefer OEM replacement parts to preserve resale value and ensure long-term compatibility with existing Tacx trainer firmware and sensors.

Key Features

  • ✓ OEM Garmin/Tacx replacement freehub body, part T2805.51
  • ✓ Designed for Campagnolo spline cassettes on pre-2020 Tacx trainers
  • ✓ CNC-machined alloy body with hardened spline surfaces for durability
  • ✓ Sealed bearing interface to resist indoor sweat and debris
  • ✓ Direct fit for Neo, Neo 2, Flux, Flux S and Flux 2 (pre-2020 variants)
  • ✓ Compact, lightweight factory part—ships in original dimensions

Specifications

Misc T2805.51, Campagnolo

Product Identifiers

Vendor Item # T2805.51
EAN 8714895052823

Frequently Asked Questions

Which trainers is this freehub body compatible with?

This T2805.51 freehub body fits Tacx Neo (T2800), Neo 2 (T2850/T2850.60), Flux (T2900), Flux S (T2900S/T2900S.60) and Flux 2 (T2980/T2980.60) pre-2020 trainer variants. It is not compatible with later 'A' or 2T variants—those require part 891051.

Will this accept Shimano or SRAM cassettes?

No — this freehub body uses the Campagnolo spline pattern. If you run Shimano/SRAM cassettes you’ll need the Tacx freehub body version made for Shimano/SRAM splines or an appropriate cassette/hub adapter.

Does the replacement include bearings, spacers or the cassette?

The unit is sold as the freehub body assembly. It includes the hub interface and its internal seals/bearings as assembled by the factory, but it does not include a cassette or trainer axle. Confirm contents on your product page or contact Forest Bikes if you need verification prior to purchase.

How difficult is installation and what tools are required?

Installation is a moderate DIY job for a competent mechanic—expect to use basic hex keys and possibly a torque tool. You’ll need to remove the trainer’s axle or end-cap, slide out the old freehub, and fit the replacement. If you’re not comfortable with trainer teardown, we recommend professional installation.

How do I know if I need this part?

Replace the freehub body if you experience cassette movement under load, noisy or gritty engagement, slipping during hard intervals, or visible spline wear. Regular indoor use can accelerate wear due to sustained torque and sweat exposure.

Is this covered by warranty?

Warranty coverage is provided under the manufacturer’s terms (Garmin/Tacx). Coverage depends on purchase date and the trainer’s warranty status—contact Forest Bikes or Garmin support with your trainer serial number for warranty assistance.

Buying Guide

When buying a Tacx direct-drive freehub body, the most important factor is spline compatibility: Campagnolo, Shimano or SRAM. Confirm your trainer’s model and variant number against the part number (T2805.51 for pre-2020 Campagnolo units) to avoid a mismatched purchase. Also check whether the unit is sold as an assembly or requires additional bearings or hardware. Replace your freehub body when you notice play, skipping, or noisy engagement under load. OEM Tacx/Garmin parts preserve factory tolerances and sensor alignment, making them the safest choice for restoring trainer performance and extending the life of your smart trainer.

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