The Bike at Taupo 70.3: 90 km of Rolling Roads, Chip-Seal and Wind to Manage

The course in a nutshell

90 km in a single loop, 693 m of elevation gain. The official profile calls it "rolling": no walls, but long, gradual climbs that never stop eating watts. The current course has more climbing than the old one (693 m vs 521): if you've read old race reports, update your expectations.

The route starts from Kaimanawa Reserve, takes Rifle Range Rd and Broadlands Rd, descends View Rd down to the Aratiatia dam, climbs back up, then SH5, Homestead Rd, Halcrow and Vaile Rd, and returns via Broadlands Rd. Some sections are on state highway: reports mention heavy traffic in the area, so hold your line and stay focused.

The real opponent: the chip-seal

The surface is largely rough chip-seal, clearly flagged in reports from the 2024 World Championship held on the same roads. Translation: constant vibration, higher rolling resistance, bottles and gel holders bouncing off if they're not secured properly. Several race reports mention gear lost mid-race and tarmac that drained more energy than expected, even if it wasn't terrible everywhere.

What to do, in practice:

• Wider tires than you'd run on smooth tarmac, at moderate pressures. Test your setup in training on rough roads, not on race day.
• Check that bottle cages, gel boxes and any frame-mounted accessories are tightened down.
• Train your aero position on rough surfaces: holding position for 2.5 hours on chip-seal is a skill, not a given.

Climbs and descents: where the race is decided

The climbs are long and gradual, including the one race reports call "Heartbreak Hill". No surges needed here: what you need is the ability to hold steady watts on gentle gradients for minutes on end. If your training is all short, violent intervals, change the script in the months before.

The key technical point is the View Rd descent toward the Aratiatia dam, with the climb back out. If you get to Taupo a few days early, ride it: knowing where to brake and what gear to restart the climb in is worth more than one extra workout.

The wind changes the plan

Reports indicate possible headwinds both on the climbs and on the return toward town. One 2025 athlete describes "rolling hills and brutal winds" on the bike leg. There's one rule: manage your power, don't chase average speed. If the plan was 2:40 and the wind says 2:50, accept 2:50. Anyone who pushes into the wind to save their average pays for all of it on the half marathon.

The lake can also be flat and the day perfect: in 2024, race day was calm. But your plan has to hold up under both scenarios.

Rules and numbers to know

• Two no-pass zones: study them at the briefing. A penalty for overtaking in a no-pass zone is a free mistake.
• 3 aid stations on the bike course: with 90 km and possible late-summer sun, plan how many bottles you start with and where to restock.
• Bike cutoff: 5h30 from the start. For anyone targeting a "comfortable finisher" goal (roughly a 3:30 bike split by our rough estimates, not official data), there's margin, but not unlimited if the swim ran long.

The decision to make now

Choose your tire setup today and test it for weeks on rough roads. Build blocks of steady-watt work on gentle 5-15 minute climbs. And decide your number: the target power you'll hold even when the wind tells you to play hero. The Taupo course rewards whoever arrives at T2 with legs to run, not whoever posts the prettiest bike split in the group.