While excellence across all three disciplines is vital, it’s the demanding bike stage that could ultimately determine the champions in the IRONMAN 70.3 Lapu-Lapu presented by Megaworld, which fires off this Sunday at Mactan Newtown in Cebu.

The 90-kilometer bike leg, coursing through the iconic Cebu-Cordova Link Expressway (CCLEX), will serve not only as a test of speed and stamina but also of mental focus and strategy.

Spanning 8.9 kilometers, the four-lane CCLEX, the country’s longest and tallest bridge, offers breathtaking views but unforgiving conditions.

Contenders are expected to face strong crosswinds and temperature fluctuations on its exposed expanse, making it a technical and tactical battleground in the heart of the race.

“It’s not uncommon for athletes to encounter gusty winds at the top of the bridge, and that can make or break their race. For safety and performance reasons, we strongly discourage the use of disc wheels,” race director Julian Valencia said.

The bike leg's significance isn’t just about the distance or the scenery — it’s a critical turning point. The strong can break away. The cautious can conserve. And the faltering may see their podium dreams slip away. Whether it’s a seasoned pro or a driven age-grouper, the outcome of the CCLEX ride could define their race.

While the 1.9-km swim in open water sets the tone and the 21-km closing run challenges the final reserves of grit and endurance — especially under Cebu’s sweltering conditions — it’s often on the saddle where the biggest moves happen.

Just ask South African Henri Schoeman.

In last year’s race, he seized control in the swim but created decisive separation on the bike, opening up a gap of over two minutes on New Zealand’s Sam Osborne and carrying that lead all the way to the finish line in a wire-to-wire triumph.

This year, with Schoeman not returning, Osborne becomes the man to beat in the men’s pro division.