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Assumption of risk

Not medical or safety advice. Plans, paces, fueling, turnaround times, tide or current estimates, and trip estimates are general calculations from the information you enter, and they may be wrong. Exercise, endurance events, hiking, cycling, paddling, and time outdoors carry a risk of serious injury or death. Consult a physician before beginning a training program, especially if you are pregnant, injured, or have a health condition. Check official weather, trail, park, tide, and water conditions, carry the safety gear the trip requires, and turn back when conditions require it. You participate at your own risk. Fueling suggestions are not nutritional advice for allergies or medical conditions.

AI output

This tool uses artificial intelligence provided by xAI. AI output may be inaccurate, incomplete, biased, or made up. Review and edit it before you rely on it, publish it, or give it to anyone. Do not submit confidential, personal, health, or client-identifying information. Text you submit is sent to xAI to generate a response. LIGHT & SALT BROADCASTING (LSB) LLC does not use that text to train its models.

Free preview

Teeth, a wheel, and a cadence.

You will see the tallest gear at that cadence before anyone asks for a card. Add a second drivetrain or a climb if you want those checks in the unlock.

Gear is a rollout chart from the wheel and the teeth you enter. Tire pressure, wind, and a worn cassette change the real speed. It is not a fit session and it does not size a frame.