Now in beta
Fuel the session
you’re actually riding.
Every ride gets its own carbohydrate plan, built from your critical power,
the shape of the effort and what your gut can absorb.
In the fuel
you carry
Syncs your
training plan
Features
Five jobs,
done properly.
The calendar, your fuel, the timing, the sync, and what happened on the ride.
On the bike
The plan follows you
onto the bike.
A fuel plan you have to remember isn’t a plan. StemNotes puts the next feed on your head unit or your watch: what to eat, how many grams, a countdown, and an alert when it’s time.
Get the apps
Included with Pro
Hammerhead Karoo
A StemNotes extension for the Karoo. It matches the session you are riding to its fuel plan, counts down to the next feed on your data page, and alerts you when it lands.
Built for the Hammerhead Karoo 3
Next Fuel data field: the item and grams, like “20Gel • 20g”, plus the countdown
Alerts fire block by block, timed to the session you are actually riding
The field shifts colour with feed size, scaled to your own carb ceiling
Included with Pro
Garmin Edge
A Connect IQ data field for Edge computers. Pair once with a code, push the day’s plan before you leave, then ride. It needs no signal.
Works on Edge 530, 540, 830, 840, 1030, 1030 Plus, 1040 and 1050, including the 540 and 840 Dual Power
Pair once: the Edge shows a code, you enter it in the app
The plan syncs before the ride and runs entirely offline
Flashes the item and grams at each feed, like “Bottle 1 · first half • 40g”, and counts down in between
Included with Pro
Apple Watch
The week’s fuel plans on your wrist, synced from the app. Pick a session, tap Start, and the watch tells you what to eat and when.
Links itself from the iPhone app, no code to type
The next feed and a countdown, with a buzz at each feed
Optional cycling workout in Apple Health, with pause
Works offline once the week has loaded
Built around you
Your body.
Your fuel.
Two riders on the same session shouldn’t get the same plan. StemNotes adjusts for your cycle and plans with the products you actually carry.
On every plan
Fuelling around your cycle
Tell StemNotes how your cycle affects you and log when each period starts. On the days you usually feel more fatigued, every plan carries a little more carbohydrate.
Cycle · increased fatigue
Your own products
Add the gel you always use, the bar you like and your drink mix. Plans use only the items you star, in whole servings.
Round feeds to 5 g or 10 g
Rounding carries from feed to feed, so the ride total stays on plan.
5 g
10 g
Sessions
Every session
fuelled
differently.
Connect TrainingPeaks or intervals.icu and your sessions import on their own. Each one arrives with its own time-based fuel plan, built around the constraints of that session.
Share
Post the plan.
Post the result.
Turn any session into a Story card: the plan the night before a big day, or what you ate against what the ride needed once you’re home. Stickers for your ride photos too.
Pricing
Cheaper than
a gel.
Fuel plans for 2 sessions a week
Store cupboard: plans in the fuel you carry
Full fuel calendar
TrainingPeaks and intervals.icu sync
Planned vs actual (needs TrainingPeaks Premium)
Share cards for Stories and photos
Menstrual cycle fuelling
Basic workout generator
A fuel plan for every session
Unlimited workouts a week
Full fuel calendar
TrainingPeaks and intervals.icu sync
Enhanced workout generator
Your plan added to TrainingPeaks or intervals.icu
Garmin Edge data field
Hammerhead Karoo extension
Apple Watch app
Coming Soon
Race-based GPX nutrition planning
A fuel plan for every session
Unlimited workouts a week
Full fuel calendar
TrainingPeaks and intervals.icu sync
Enhanced workout generator
Your plan added to TrainingPeaks or intervals.icu
Garmin Edge data field
Hammerhead Karoo extension
Apple Watch app
Coming Soon
Race-based GPX nutrition planning
FAQs
Got questions?
Here are the answers.
Can’t find the answer you’re looking for? Contact us below and we’re happy to help out.
Contact Us
What is StemNotes?
Which apps does it connect to?
Does it work on my bike computer or Apple Watch?
Do I need a power meter?
How are the carbohydrate targets worked out?
Can I use my own gels and drinks?
Does StemNotes adjust for my menstrual cycle?
What happens when my free trial ends?
Can my coach give me access?
Is StemNotes available yet?