AI synthesis with sources · 3 min · edition 2027
Lake George Bike: 90 km of 'Rolling' Terrain With All the Climbing Up Front
A single loop in the Adirondacks, no official elevation gain published, and a climb out of town that decides your race: here's how to plan it.
One Loop, 90 km, One Missing Number
The bike leg at IRONMAN 70.3 Lake George is a single 90 km loop in the southern Adirondacks. The organizer classifies the terrain as 'rolling'. The official elevation gain hasn't been published: there's still no elevation profile on the course page. Unofficial estimates circulating among athletes point to around 700 meters, almost all packed into the climb out of town. Until the official map drops, treat these numbers as ballpark figures, not as a definitive planning basis. This is an inaugural edition: details can change right up to race day.
The Opening Climb: Where the Race Is Decided
If the estimates hold, the bulk of the work comes right away. You exit T1 on cold legs after a swim in 18°C water and face the toughest section of the course. It's the worst combination: adrenaline high, body not warmed up, a gradient that begs you to push.
There's one rule: set a power cap for the first 20-30 minutes and stick to it. Stay below threshold even when everyone around you attacks. The course pays you back: after the climb, a plateau opens up, followed by a descent back toward the finish. Watts burned on the climb don't come back; time lost on the climb does, on the plateau.
Plateau and Descent: Where You Make Time
The second part of the loop is where you build your average speed. On the plateau: aero position and steady power. On the descent back in: clean lines and a progressive re-engagement, so you arrive at T2 with legs ready for a run that may not be as flat as advertised (sources differ, see the run article).
A note on wind: there's no historical data for this race and the available indices are conservative. On an open plateau, wind can matter. You can't plan for it, but you can mentally prepare to manage it without blowing up your plan.
Gearing and Equipment: Choose Margin
Without an official elevation profile, the rational choice is margin. A cassette with a bailout gear (for example 11-32 instead of 11-28, depending on what you're used to) costs almost nothing on the plateau and saves you if the climb is longer or steeper than expected. Wheels: mid-depth, nothing extreme, until you know the wind and the descents. Lock in your final choice only after the recon in the race area.
Weather: Cold Start
In June the low is 9°C, the high 25°C. The bike starts early, with cool air and a wet body. Consider a wind vest or arm warmers you can shed along the way: in the first climbing kilometers you'll heat up fast, but if it's a cold day the descent can seriously chill you.
Benchmark Times
Ballpark estimates for the leg, not official data: 3:25 for a relaxed finisher, 3:00 for a mid-range goal, 2:40 for a fast goal, 2:25 for top age-group. Use them to build your race plan, not as promises: without an official elevation profile, real times can shift.
What to Do Starting Today
- Add 20-30 minute blocks at controlled power just below threshold, after a short warm-up: simulate exiting T1 onto a climb.
- Define your power cap for the climb and test it in training at least three times.
- Check the official course page every month: when the elevation profile comes out, recalibrate gearing and pacing.
- In the race area, drive or ride the climb out of town: in athlete discussions it's flagged as the key section of the course.