The Taupo Bike Course: Two Rolling Laps Where the Wind Calls the Shots

Two 90 km laps, zero breaks

The bike course is two identical 90 km laps. From the transition zone at Kaimanawa Reserve you head out on Rifle Range Road, then Broadlands Road, the descent on View Road towards the Aratiatia Dam, the climb and the turn onto State Highway 5, then back via Homestead, Halcrow and Vaile Roads. The tarmac is in relatively good condition. There are no long climbs, but the terrain rolls from the very first kilometre: punchy rises, false flats, constant surges. It's the classic course that looks fast on paper and never rides as fast as you hope on race day.

How much climbing is there really

This is where sources diverge, and it's worth being upfront about it. The official course page currently lists 1,392 m of elevation gain. The old course showed 1,042 m, and historical Garmin files range between roughly 960 and 1,100 m. Take 1,100-1,400 m as a realistic range and mentally prepare for the high end. A 2017 race report mentions a 1.7 km kicker with sections around 8% in the area after the dam: it's the only spot where you really need an easy gear, but you do it twice.

The wind is variable number one

In race reports, the wind off the lake is the most-cited factor, more than the elevation gain. The turnaround area is flat and very exposed, and multiple editions report a headwind on the return towards Taupo — right when the legs start to pay the bill. The wind varies from year to year: you can't plan for it, you can only prepare for it. Train your aero position in windy conditions, with long blocks held on the aero bars even when it's uncomfortable. Anyone who sits up in the exposed section is giving away minutes.

Pacing: steady watts, not muscles

With roughly 1,400 m spread across dozens of short rises, the risk isn't blowing up on a climb: it's accumulating a hundred small spikes that come back to bite you in the marathon. The rule is simple: steady watts, not steady speed. On the rises, let your speed drop, don't push the power above your target. Into the wind, same thing: don't "attack" the wind, ride through it at your own pace. Several reports describe athletes who hammered the first lap with a tailwind and found themselves on the second lap into a headwind with nothing left in the tank.

Gearing and equipment

No massive climbs, so no extreme choices. But pick a cassette that lets you spin smoothly on the 8% kicker without going above threshold: for many age-groupers an 11-30 or 11-32 with a compact makes more sense than a TT gearing setup. Wheels: with variable wind and exposed sections, a mid-depth rim is easier to handle than a disc wheel if you're not used to crosswind gusts.

The cut-off and your margin

The bike cut-off is 10:30 h cumulative from the start, swim and T1 included. If your goal is to finish within the 17 hours, do the maths: a 1:40 swim plus transition leaves you about 8:30 for the 180 km. With strong wind, that's less margin than it sounds.

What to do now

• Test: a 4-5 hour long ride on rolling terrain, holding target watts on every rise without ever going over. If you can't, your target is too high.
• Recon: if you arrive a few days early, drive or ride the SH5 section and the kicker after the dam. They're the key points of the lap.
• Decision: set two power plans now, one for a calm day and one for a windy day. On race day you choose, you don't improvise.