TOOL 01 · FOUR QUESTIONS
Dose Finder
Spin, strength or yoga? Answer four questions and get a real class recommendation for today.
Open Dose Finder →The dose lab
Tools for the work.
A class finder for the days you cannot decide, a heart-rate calculator for the bike, and an interval timer for practice. No accounts, no apps.
No accounts
Three tools. No friction.
TOOL 02 · KARVONEN
Heart-rate zones
Turn your age and resting heart rate into five ride zones you can actually use on a Keiser bike.
Open Heart-rate zones →TOOL 03 · WORK / REST
Ride timer
A full-screen interval timer with sprint, hill and Tabata presets, sound and wake lock.
Open Ride timer →How they work
Built for the room, not a leaderboard.
The finder recommends a real DOSE format. The heart-rate tool uses the Tanaka max-HR estimate and the Karvonen method. The timer is a practice clock with sprint, hill and Tabata presets.
Nothing is saved to an account. Your last inputs stay in this browser so you can come back to them.
From tool to room
The calculator is not the class.
Use the tool, then book the room. Arrive 20 minutes early and an instructor will help with the rest.