# Adding .fit data for bike workouts

**URL:** <https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116>\
**Category:** Bug Reports\
**Created:** [August 27, 2025, 8:08pm UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116 "2025-08-27T20:08:16Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![raven1462](https://forum.athletica.ai/letter_avatar_proxy/v4/letter/r/b38774/32.png) [@raven1462](https://forum.athletica.ai/u/raven1462)\
**Post date:** [August 27, 2025, 8:08pm UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116/1 "2025-08-27T20:08:16Z")

</div>

When I try to add data from my bike ride on zwift, I am now getting an error message that it is an unsupported file extension.

 ![image](https://forum.athletica.ai/uploads/default/original/2X/e/e340d2709498dae25935a95e3112f5aaae7448e7.png)

---

<div class="post-metadata">

**Author:** ![raven1462](https://forum.athletica.ai/letter_avatar_proxy/v4/letter/r/b38774/32.png) [@raven1462](https://forum.athletica.ai/u/raven1462)\
**Post date:** [August 27, 2025, 11:15pm UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116/2 "2025-08-27T23:15:08Z")

</div>

Looks like it is fixed.

---

<div class="post-metadata">

**Author:** ![Robert](https://forum.athletica.ai/letter_avatar_proxy/v4/letter/r/e95f7d/32.png) [@Robert](https://forum.athletica.ai/u/Robert)\
**Post date:** [August 28, 2025, 7:07am UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116/3 "2025-08-28T07:07:55Z")

</div>

I don’t think uploads of fit files are working still. Also the zip format (which I usually use from Garmin Connect) is no longer accepted.

---

<div class="post-metadata">

**Author:** ![Marjaana](https://forum.athletica.ai/user_avatar/forum.athletica.ai/marjaana/32/4122_2.png) [@Marjaana](https://forum.athletica.ai/u/Marjaana)\
**Post date:** [August 28, 2025, 10:51am UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116/4 "2025-08-28T10:51:28Z")

</div>

Hello @Robert

Thanks for bringing this to my attention. May I ask why you upload zip file from Garmin connect and not use the connection that pulls the data for you? You would save a lot of hassle of manual work to let the Connect→ athletica do the work for you, and focus on training 😉

It would be great if you can try again and report back if upload is not working. We applied a fix yesterday, and need to know it is working. Thanks

MJ

---

<div class="post-metadata">

**Author:** ![Robert](https://forum.athletica.ai/letter_avatar_proxy/v4/letter/r/e95f7d/32.png) [@Robert](https://forum.athletica.ai/u/Robert)\
**Post date:** [August 28, 2025, 11:46am UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116/5 "2025-08-28T11:46:18Z")

</div>

I don’t use automatic upload because I prefer to have control over which workouts end up with Athletica.

The present case involves a fit file corresponding to a club time trial that I rode yesterday evening after which I got home too late to upload it to Athletica. This morning I tried to upload the zip file as I usually do, but get the error “Unsupported file extension: zip”. If I try and upload the corresponding fit file, it seems to save but the data don’t end up associated with the relevant workout in my Training Plan.

Update: the latest attempt seems to have worked. Nope, it was because I transiently set up automatic upload from Garmin Connect. That’s not how I want to upload activity data.

R

---

<div class="post-metadata">

**Author:** ![Robert](https://forum.athletica.ai/letter_avatar_proxy/v4/letter/r/e95f7d/32.png) [@Robert](https://forum.athletica.ai/u/Robert)\
**Post date:** [August 28, 2025, 3:47pm UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116/6 "2025-08-28T15:47:29Z")

</div>

OK, a formal request! Please restore the ability to manually upload fit files, ideally as a zip file. Forcing my to link Garmin Connect isn’t acceptable to me and my workflow. Automatic upload from Garmin Connect brings across activities I don’t want in my Athletica account.

---

<div class="post-metadata">

**Author:** ![Marjaana](https://forum.athletica.ai/user_avatar/forum.athletica.ai/marjaana/32/4122_2.png) [@Marjaana](https://forum.athletica.ai/u/Marjaana)\
**Post date:** [August 28, 2025, 3:52pm UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116/7 "2025-08-28T15:52:16Z")

</div>

hey @Robert I got you. I’ve reported this to our dev team. Please hold. 😃

MJ

---

<div class="post-metadata">

**Author:** ![Robert](https://forum.athletica.ai/letter_avatar_proxy/v4/letter/r/e95f7d/32.png) [@Robert](https://forum.athletica.ai/u/Robert)\
**Post date:** [August 28, 2025, 4:17pm UTC](https://forum.athletica.ai/t/adding-fit-data-for-bike-workouts/4116/8 "2025-08-28T16:17:53Z")

</div>

One other thing. I briefly connected my Garmin Connect account and it seems to have scheduled a huge data transfer to Athletica. It’s possible my file upload is awaiting that to complete (even though I terminated the connection), but that might take a while as it’s bringing in masses of activities including some from before I ever joined Athletica.
