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Connect a Hammerhead Karoo

Link your Hammerhead account so finished Karoo rides land in NeverChill and routes and workouts can go back to the Karoo.

Updated 2026-10-15

What this is for

Connect your Hammerhead account once. After that, every ride you finish on your Karoo shows up in NeverChill on its own, and you can send routes and workouts to the Karoo. Hammerhead is a bike computer, so it's free.

Before you start

  • You need your Hammerhead account email and password.
  • Your Karoo should already be linked to that Hammerhead account.

Connect Hammerhead

On the web

  1. In the top bar, open the More menu, choose Account settings, then choose Devices & apps under Integrations. You can also go straight to neverchill.com/settings/integrations.
  2. Find Hammerhead under Bike computers and click Connect.
  3. Sign in to Hammerhead and allow access.
  4. You return to the Hammerhead page in NeverChill. It shows Waiting for first sync until your next ride arrives.

In the app

The NeverChill mobile app is in beta (TestFlight on iPhone, a preview build on Android).

  1. Tap Me, tap the settings gear, then tap Devices & apps under Integrations.
  2. Tap Hammerhead, then tap Connect.
  3. Sign in to Hammerhead in the window that opens and allow access.
  4. When you see Connect Hammerhead to this account?, check the account and tap Continue in the app.
  5. Hammerhead now shows Connected - waiting for the first sync.

[Screenshot coming soon]

Allow route and workout access

Hammerhead asks separately for permission to receive routes and workouts. Allow them if you want to send routes or workouts to your Karoo. If you skipped them, you'll see Reconnect and grant route permissions before sending routes. or the same for workouts. Tap Reconnect and allow them.

Bring in past rides

The first sync after you connect brings in your Hammerhead rides from the last 90 days. After that, each sync picks up from where the last one left off. Rides you already have are skipped, so you won't get duplicates.

For older rides, upload the files. See Upload a FIT, GPX or TCX file.

Troubleshooting

  • Stuck on Importing your history… This was fixed in version 2026.9.14. Check your version (see Check your version and report a bug). If you're up to date and it's still stuck, report it.
  • Reconnect required. Your Hammerhead access expired or was removed. Tap Reconnect and sign in again. Nothing is duplicated.
  • Sending routes or workouts says it's not switched on yet. That means sending to Hammerhead is waiting on Hammerhead's approval. There's nothing to reconnect.
  • A ride is missing. See Troubleshoot device sync.

Still stuck? In the app, go to Settings and tap Report a bug or idea under Help. On the web, choose Send feedback from the More menu.

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