# Hammerhead Karoo now syncs with Intervals.icu

**URL:** <https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156>\
**Category:** Announcements\
**Created:** [24 January 2025 08:52 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156 "2025-01-24T08:52:44Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\
**Post date:** [24 January 2025 08:52 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/1 "2025-01-24T08:52:44Z")

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Hammerhead has added Intervals.icu sync to the Karoo cycling computer! Seamlessly connect to Intervals.icu and sync your rides and planned workouts.You need to update your Karoo to unlock the connection.

 ![474864165_18494758414052476_1352653042672825256_n](https://forum.intervals.icu/uploads/default/original/3X/9/e/9ec3fad8a27ed3a26e0e808a144c6ba655659d58.jpeg)

There is a Hammerhead box on the /settings page but you need to create the connection from your Karoo.

 ![Screenshot 2025-01-24 at 10.48.11](https://forum.intervals.icu/uploads/default/original/3X/d/2/d2d491d4f6be7f6639ecfe5e62813d40401d3449.png)

Thanks very much to the team at Hammerhead for getting this done.

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**Author:** ![Sofia\_Fernandes](https://forum.intervals.icu/user_avatar/forum.intervals.icu/sofia_fernandes/32/49911_2.png) [@Sofia\_Fernandes](https://forum.intervals.icu/u/Sofia_Fernandes)\
**Post date:** [24 January 2025 09:35 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/2 "2025-01-24T09:35:08Z")

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Thank youuuuu one more time 😃

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**Author:** ![Howie](https://forum.intervals.icu/user_avatar/forum.intervals.icu/howie/32/41347_2.png) [@Howie](https://forum.intervals.icu/u/Howie)\
**Post date:** [24 January 2025 10:15 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/3 "2025-01-24T10:15:01Z")

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😃😃 Thank you

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**Author:** ![ianrobo](https://forum.intervals.icu/user_avatar/forum.intervals.icu/ianrobo/32/49935_2.png) [@ianrobo](https://forum.intervals.icu/u/ianrobo)\
**Post date:** [24 January 2025 14:43 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/4 "2025-01-24T14:43:08Z")

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great work David as I use the Karoo, love it and now one step to removing strava !!

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**Author:** ![Rafael\_Janssen](https://forum.intervals.icu/user_avatar/forum.intervals.icu/rafael_janssen/32/49936_2.png) [@Rafael\_Janssen](https://forum.intervals.icu/u/Rafael_Janssen)\
**Post date:** [24 January 2025 15:04 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/5 "2025-01-24T15:04:53Z")

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Thanks alot! this makes my life much easier 😉

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<div class="post-metadata">

**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\
**Post date:** [24 January 2025 15:08 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/6 "2025-01-24T15:08:25Z")

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All credit for this goes to the Hammerhead team, they did the work!

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**Author:** ![Eck\_halibut](https://forum.intervals.icu/user_avatar/forum.intervals.icu/eck_halibut/32/47183_2.png) [@Eck\_halibut](https://forum.intervals.icu/u/Eck_halibut)\
**Post date:** [24 January 2025 16:57 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/7 "2025-01-24T16:57:50Z")

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Is this for all Karoo units? I have the Karoo 2.

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**Author:** ![TobiTobsen](https://forum.intervals.icu/user_avatar/forum.intervals.icu/tobitobsen/32/29471_2.png) [@TobiTobsen](https://forum.intervals.icu/u/TobiTobsen)\
**Post date:** [24 January 2025 17:01 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/8 "2025-01-24T17:01:10Z")

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Yes, Karoo 2 as well.

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**Author:** ![teckdeck](https://forum.intervals.icu/user_avatar/forum.intervals.icu/teckdeck/32/61066_2.png) [@teckdeck](https://forum.intervals.icu/u/teckdeck)\
**Post date:** [24 January 2025 18:00 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/9 "2025-01-24T18:00:30Z")

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Such a lovely gift on Friday. Thanks a lot! 🙂

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**Author:** ![t.me\_massarob](https://forum.intervals.icu/user_avatar/forum.intervals.icu/t.me_massarob/32/32520_2.png) [@t.me\_massarob](https://forum.intervals.icu/u/t.me_massarob)\
**Post date:** [24 January 2025 18:35 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/10 "2025-01-24T18:35:53Z")

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Thanks a lot

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<div class="post-metadata">

**Author:** ![dublet](https://forum.intervals.icu/user_avatar/forum.intervals.icu/dublet/32/51149_2.png) [@dublet](https://forum.intervals.icu/u/dublet)\
**Post date:** [24 January 2025 19:20 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/11 "2025-01-24T19:20:30Z")

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As someone who uses a Karoo but syncs via Suunto at the moment, does this correctly deal with the type? E.g. Indoor rides turning into Virtual Rides? And import the calories?

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**Author:** ![Howie](https://forum.intervals.icu/user_avatar/forum.intervals.icu/howie/32/41347_2.png) [@Howie](https://forum.intervals.icu/u/Howie)\
**Post date:** [24 January 2025 19:26 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/12 "2025-01-24T19:26:37Z")

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I doubt it since, last I looked, there is a way to classify ride type by profile but Hammerhead doesn’t actually write that info into the file. Go figure.

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<div class="post-metadata">

**Author:** ![dublet](https://forum.intervals.icu/user_avatar/forum.intervals.icu/dublet/32/51149_2.png) [@dublet](https://forum.intervals.icu/u/dublet)\
**Post date:** [24 January 2025 20:54 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/13 "2025-01-24T20:54:36Z")

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The `subsport` very much still is `generic` and no trace of `calories` either, but you know, one can hope. If someone from Hammerhead reads this: please 🙏

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<div class="post-metadata">

**Author:** ![Howie](https://forum.intervals.icu/user_avatar/forum.intervals.icu/howie/32/41347_2.png) [@Howie](https://forum.intervals.icu/u/Howie)\
**Post date:** [25 January 2025 09:14 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/14 "2025-01-25T09:14:02Z")

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Add your voice [here](https://support.hammerhead.io/hc/en-us/community/posts/7858605830171-Feature-Request-Change-sub-sport-in-fit-file).

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<div class="post-metadata">

**Author:** ![crankgreenwatts](https://forum.intervals.icu/user_avatar/forum.intervals.icu/crankgreenwatts/32/59418_2.png) [@crankgreenwatts](https://forum.intervals.icu/u/crankgreenwatts)\
**Post date:** [25 January 2025 13:24 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/15 "2025-01-25T13:24:02Z")

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That speaks volumes about Intervals.icu as-well @david … Chapeau 👏

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<div class="post-metadata">

**Author:** ![Zen\_Turtle](https://forum.intervals.icu/user_avatar/forum.intervals.icu/zen_turtle/32/26755_2.png) [@Zen\_Turtle](https://forum.intervals.icu/u/Zen_Turtle)\
**Post date:** [25 January 2025 22:48 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/16 "2025-01-25T22:48:34Z")

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Thank you @david for relentless amazing work.  
I put the feature request on Hammerhead forum more than 4 years ago, I’m always shocked on how slowly the bigger companies move compared to Intervals.icu, where everything happens quickly… Maybe there’s a lesson for them here.

 ![IMG_2254](https://forum.intervals.icu/uploads/default/original/3X/9/8/989517a4f3f13d255b88881a662978b80d15cecd.jpeg)  
 ![IMG_2255](https://forum.intervals.icu/uploads/default/original/3X/5/4/54ee7b97f9b9c19ae4f2d6bf4c4c0fbd15546f5f.jpeg)

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<div class="post-metadata">

**Author:** ![Howie](https://forum.intervals.icu/user_avatar/forum.intervals.icu/howie/32/41347_2.png) [@Howie](https://forum.intervals.icu/u/Howie)\
**Post date:** [26 January 2025 07:46 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/17 "2025-01-26T07:46:15Z")

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Love, love, love this new syncing feature. 👍

In regard to `sub_sport`, I’d like to confirm that _if_ Hammerhead were to start writing anything other than `generic` in FIT file, would Intervals read that information and label the Ride Type accordingly? Yes/No?

… It appears that “Strava only changes the sub sport type for UI purposes, it doesn´t change the sub\_sport value into the .fit file”. It’s a shame that TP and Strava hold companies like Hammerhead back from progressive implementation.

And on that note, I give full kudos to @david, and to all the admins and other developers, for creating a platform and community that is interested in providing a user friendly and useful service.

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**Author:** ![app4g](https://forum.intervals.icu/user_avatar/forum.intervals.icu/app4g/32/41800_2.png) [@app4g](https://forum.intervals.icu/u/app4g)\
**Post date:** [26 January 2025 08:06 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/18 "2025-01-26T08:06:50Z")

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> [@Howie](#):
>
> it doesn´t change the sub\_sport value into the .fit file”.

I believe all companies does this. They won’t alter the original FIT file after it’s been processed. Un-needed CPU cycles when all they need to do is just change the subsport within their processed FIT file data.

Also, then you request for your data, they can just send the originals w/o doing any additional processing.

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<div class="post-metadata">

**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\
**Post date:** [26 January 2025 11:38 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/19 "2025-01-26T11:38:10Z")

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Yes Intervals.icu does use sub\_sport:

```java
case CYCLING:
    if (SubSport.VIRTUAL_ACTIVITY == sub_sport) return ActivityType.VirtualRide;
    if (SubSport.INDOOR_CYCLING == sub_sport) return ActivityType.VirtualRide;
    if (SubSport.E_BIKE_FITNESS == sub_sport) return ActivityType.EBikeRide;
    if (SubSport.MOUNTAIN == sub_sport) return ActivityType.MountainBikeRide;
    if (SubSport.DOWNHILL == sub_sport) return ActivityType.MountainBikeRide;
    if (SubSport.E_BIKE_MOUNTAIN == sub_sport) return ActivityType.EMountainBikeRide;
    if (SubSport.GRAVEL_CYCLING == sub_sport) return ActivityType.GravelRide;
    return ActivityType.Ride;

```

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<div class="post-metadata">

**Author:** ![Marcos\_Lachnowicz](https://forum.intervals.icu/user_avatar/forum.intervals.icu/marcos_lachnowicz/32/33186_2.png) [@Marcos\_Lachnowicz](https://forum.intervals.icu/u/Marcos_Lachnowicz)\
**Post date:** [26 January 2025 14:05 UTC](https://forum.intervals.icu/t/hammerhead-karoo-now-syncs-with-intervals-icu/88156/20 "2025-01-26T14:05:48Z")

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Great to hear that. I guess Karoo 1 isn’t supported, right?

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