The Roadman Cycling Podcast
Why the Pros Are Ditching 175mm Cranks for 165mm With INEOS's Phil Burt
Feb 7, 2025
Join renowned physiotherapist Phil Burt, who has worked with Team Sky and guided Sir Bradley Wiggins to Olympic gold, as he unpacks the shift from 175mm to 165mm crank lengths in professional cycling. Discover the science behind this trend—shorter cranks enhance torque and cadence while reducing knee pain. Phil explains essential bike fit adjustments needed for comfort and performance. He also dives into the challenges faced by ultra-endurance cyclists and the importance of personalized bike setups to prevent discomfort—all while keeping your ride efficient!
37:52
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Quick takeaways
- The shift from 175mm to 165mm cranks reflects a broader trend that enhances cycling power and performance across all rider levels, not just the pros.
- Proper bike fit adjustments, including saddle height and positioning, are critical when switching to shorter cranks to avoid discomfort and optimize efficiency.
Deep dives
The Shift from Long to Short Cranks
The trend in cycling is shifting from traditional 175mm cranks to shorter 165mm cranks, as evidenced by their adoption by Tour de France champions and top gravel riders. Shorter cranks make it easier for cyclists to maintain power and improved positions, especially in aggressive postures like time trials. Philbert explains that bike fit adjustments are crucial when transitioning to shorter cranks to avoid comfort and efficiency losses. He highlights how reducing crank length can enhance hip mobility, ultimately leading to better performance and endurance cycling.
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