Free app for Hammerhead Karoo

Put anything on your Karoo screen.

Make ride cards on your phone. Your Karoo shows them as full-screen ride pages — fresh every time it syncs.

Live weather
— drawn fresh at every sync
Race plans
— two columns, bold what matters
Controls & cut-offs
— closing times at a glance
Rain, hour by hour
— when it starts, how hard
Photos & route maps
— anything you'd tape to the stem

Your first card is free. Pro unlocks all six — US$10/year.
Already signed up? Log in

Hammerhead Karoo cycling through RideCards ride pages: live weather, a two-column race plan, brevet controls, a rain chart and a route photo

See it in action.

From phone to handlebars in under two minutes.

Use cases

Ditch the tape on your stem.

The plan you'd normally scribble on paper, full-screen and readable at 40 km/h.

Race plan
Target watts, when to eat, when to burn a match — bold the numbers that matter.
Live weather & rain
Pick a place and the card redraws itself every time your Karoo syncs.
Climb notes
One page per climb: distance, gradient, where it actually bites.
Controls & cut-offs
Two columns made for it — controls against closing times, underline the tight one.
Feed & bottle strategy
Feed zones against what to grab, and where the crew is standing.
Crew card
Phone numbers, meeting points, plan B — for the day nothing goes to plan.
Intervals & workouts
The session on your bars: targets, cadence, the abort rule.
Race tickets & QR codes
Screenshot your rego confirmation and flash it at sign-in, straight from your bars.
Photos & the reason you ride
The route map, scribbled notes — or a photo for kilometre 140, when you need reminding.

Type a card in 30 seconds in sixteen high-contrast colours, or upload and crop any photo.

Hammerhead Karoo cycling through RideCards ride pages: live weather, a two-column race plan, brevet controls, a rain chart and a route photo

Every card is a ride page — your Karoo cycles through them as you ride.

New · Weather cards

Live weather, drawn fresh for every ride.

Pick a place and the card keeps itself current: every time your Karoo grabs your cards it gets a freshly drawn forecast — conditions now, then hour by hour the three things that change a ride: temperature, wind and rain.

The rain card answers the question the overview only hints at — when it starts and how hard it gets. Make both for one place and your Karoo cycles between them as you ride.

Every card is stamped with when it was drawn, so stale numbers can never pass themselves off as fresh.

More about weather cards →

Weather overview card: conditions now, then an hourly table of temperature, wind, gusts and rain chance Rain card: when the rain starts, how much falls, and a bar chart of millimetres per hour

One place, two layouts — the overview and the rain.

Free · Start screens

Make the start screen yours.

RideCards doesn't stop at ride pages. Pick any photo — the family, the gorge, last summer's tour — and it becomes your Karoo's start screen, panning behind your ride profiles as you swipe.

Included free with every account, alongside your first card.

More about start screens →

Karoo start screen with a custom riding photo behind the ride profiles

Any photo, straight from your phone.

How it works

Right there in your ride screens.

  1. 1

    Every card is a ride page. Flip to it like any data screen, or let auto-cycle rotate through your cards as you ride.

  2. 2

    Edit from your phone, anytime. Change the plan the night before — your Karoo grabs the latest cards before you roll out.

  3. 3

    Pairing takes ten seconds. Scan the QR code on the Karoo's screen and you're connected.

Pro

One plan, every rider's screen.

Pro syncs your account to every Karoo paired to it. Organising a gran fondo? Coaching a squad? Update the feed-zone card once and it lands on the whole group's handlebars.

All six card slots · every Karoo you own · US$10/year

Get your first card free

Pairing a Karoo? Just scan the QR code on its screen.
Don't have the app yet? Get RideCards for your Karoo.