Most cyclists overlook one of the biggest performance gains available: crank length. We break down why shorter cranks could add 15+ watts to your FTP, how to set them up correctly, and why the pros are quietly making the switch. We also tackle ERG mode myths, whether fancy pedal metrics actually matter, and settle a few heated group ride debates.
Key Takeaways
- Shorter cranks (160-165mm vs 172-175mm) can deliver 15+ watts of FTP gains by optimizing hip angle, improving aerodynamics, and reducing joint stress—backed by research and pro adoption
- ERG mode is brilliant for consistency but forces a grinding pedal stroke at low cadence; switch to resistance mode for intervals if your cadence drops below 80 RPM
- Pedal smoothness, torque effectiveness, and left-right balance metrics are largely noise; focus instead on functional strength work with a physio if you have a real imbalance
- Clipping out before corners is a false safety habit that removes your ability to maneuver; instead, practice staying clipped in and gradually push your cornering confidence
- Set a hard start time for group rides with zero tolerance for latecomers—the group leaves at 9:30, not meets at 9:30
- Don't stop mid-ride for Instagram photos in a group setting; there's plenty of time at the start, finish, or regrouping points to capture content without disrupting the session
Expert Quotes
"The group doesn't meet at 9:30 the group leaves at 9:30—Cyril, senior group member"
"You teach people how to treat you—if you keep letting people come to a group ride late they're going to keep coming later and later"
"Once you drop below 80 cadence in ERG mode you're in a world of pain stomping on the pedals, and it's turned into a different type of session entirely"