FTP for smart trainer workouts: understand and use your power

FTP stands for Functional Threshold Power. It is a practical reference for a sustained hard effort. FTP is especially useful for indoor cycling because a smart trainer can control target power with great consistency.

Why FTP matters

A watt number without context says very little. The same 220 watts may feel easy to one rider and very hard to another. FTP expresses workout intensity relative to your current ability and makes personal training zones possible.

KOMRIDER uses the FTP stored in your profile to calculate targets for structured workouts. When your fitness changes, update the value and the sessions adapt with you.

How to establish your FTP

You do not need a perfect laboratory test to find a useful starting point. You need a proper warm-up, a reliable power source and a repeatable protocol. Ramp tests and longer steady efforts are common options.

Repeat future tests under similar conditions. Trainer calibration, cooling, fatigue and daily form can affect the result. A realistic value that supports consistent training is more useful than one unusually high number.

Use training zones, not maximum effort every day

FTP creates a set of power zones. Endurance rides, sweet spot work, threshold intervals and short VO2max efforts serve different purposes. A sensible plan combines stress with recovery.

KOMRIDER displays the target zone during each workout and can hold the prescribed watts in ERG mode. This lets you focus on cadence, breathing and completing the session well.

When should FTP change?

Review the value when workouts feel clearly too easy for several weeks or remain impossible despite good recovery. It also makes sense to reassess after a long break. FTP is not a status symbol. It is a tool for choosing the right workload.