For decades, 175mm cranks were the go-to choice in the pro peloton. But now, from Tour de France champions to elite gravel racers, the shift to 165mm is in full swing.

To understand the science behind this trend, we sat down with Phil Burt—renowned physiotherapist for Team Sky, Ineos, and British Cycling. He’s the expert who helped guide Sir Bradley Wiggins to Olympic gold, and today, he’s here to explain why shorter cranks aren’t just for the pros anymore.

But making the switch isn’t as simple as swapping crank arms. Phil breaks down the three essential bike fit adjustments you need to get right—because without them, you could be sacrificing speed, comfort, and efficiency.

WHOOP

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