December 02, 2025

Everything You Need to Know for IRONMAN WA 2025

IRONMAN Western Australia hits Busselton this weekend, bringing one of the fastest long-course races on the planet back to WA. Below is everything you need to know — the course, race tips, links to the official course maps, and the best Bspoke Velo gear to sharpen your bike setup before you hit the famous Busselton Jetty.

🏁 Event Overview

Location: Busselton, Western Australia
Date: Sunday, 7 December 2025
Distances:
- Swim: 3.8 km
- Bike: 180 km
- Run: 42.2 km
Reputation: One of the flattest full-distance IRONMAN courses in the world — fast, exposed, honest.

🗺 Official Course Maps & Downloads

Planning your race or dialling in your gear? Here are the official IRONMAN Western Australia 2025 course and venue maps:

Maps are subject to change — always cross-check the latest versions on the official IRONMAN Western Australia website before race day.

🌊 Swim Course

The swim takes place around the iconic Busselton Jetty in Geographe Bay. The two-lap layout keeps you closer to shore, usually with calmer water and better sighting. You’ll exit after lap one for a short run on the foreshore before diving back in for lap two.

For exact turns, buoy placement and the run-in to T1, download the official swim map above.

🚴 Bike Course

The 180 km bike course is flat and fast — but exposed. Crosswinds and headwinds can appear without warning, and staying aero is everything. It’s a two-lap route that runs along the coast and through the Tuart Forest, with minimal elevation but plenty of time in the bars.

The bike map shows all aid stations, turnaround points, and elevation profile, so it’s worth studying as you plan nutrition and pacing.

To get the most out of the long aero sections, consider the following Bspoke Velo upgrades:

🔧 TT Mount (Aero Bar Computer Mount)

A rock-solid, vibration-free mount keeps your head down and your data exactly where you need it. Perfect for long, steady efforts in Busselton's straight sections.

Shop TT Mount

⚙️ Shifter Mounts

If you're running wireless shifting, dedicated shifter mounts give you cleaner ergonomics and faster access. When the winds pick up, stable control is everything.

Shop Shifter Mounts

🎨 Bar Tape

Long aero efforts demand comfort. Fresh bar tape improves control, shock absorption, and confidence — especially in the final hour of the ride when fatigue sets in.

Shop Bar Tape

🏃 Run Course

The marathon is a four-lap course along the Busselton foreshore, with repeated passes near the Jetty and finish precinct. It’s flat, highly exposed, and can get hot — great for fast times if you pace it well, brutal if you don’t.

The run map highlights aid stations, personal needs, and key reference points you’ll see every lap. Knowing where support is can make a big difference in the back half of the marathon.

📍 Transition & Race-Day Flow

Everything is centred around Signal Park and the Busselton Jetty precinct — swim start, transition, finish line and expo all sit within a compact footprint. The venue & transition map shows:

Swim start and practice swim area
Bike and run entry/exit points
Gear bag areas, recovery, medical, massage and expo
Spectator access and key crossing points

It’s worth walking this the day before, with the venue map open on your phone, so race day feels automatic.

📦 Must-Have Gear for IRONMAN WA

TT Bike Computer Mount – keep your head down and power on target.
Shifter Mounts – clean, reliable access to your gears when the crosswinds hit.
Premium Bar Tape – more comfort and control over 180 km.

All products ship from within Australia. No fluff, just the gear serious triathletes rely on.

💡 Final Thoughts

IRONMAN WA rewards athletes who prepare well and ride efficiently. With the right cockpit setup, a reliable mount system, and a good handle on the course maps, you’ll hold aero longer, save watts, and arrive on the run in better shape.

Good luck to everyone racing this weekend — ride smooth, stay aero, and enjoy Busselton.