Your Ultimate Guide to Preparing for the Tour Down Under
TL;DR
Many cyclists put in some big kilometers in the saddle during the week of the Tour Down Under, and preparing well requires more than simply riding more. It calls for structured training progression, a position that can support the volume of your build and a taper that allows you to arrive at the start of the event week genuinely fresh. A well-timed bike fit — usually around two months out — plays a key role in this, helping you ride efficiently across long days in the saddle and reducing unnecessary strain.
Performance Is Built Before The Event
Event-focused riders often concentrate primarily on training load — how many hours, how many intervals, how much intensity. Training is clearly central, but performance when the event comes is a reflection of how well your body has adapted to that training, how efficiently you can apply the effort you have built, and whether your position on the bike will hold up across multiple long days in the saddle. This guide works through a structured approach to preparing each of those elements in turn.
3 Months Out: Build Your Base
The early phase of preparation — roughly 12 weeks out from the event — focuses on building the aerobic base that everything else will be built on. This is where consistency tends to matter more than intensity.
Establishing Aerobic Endurance
At this stage, the work is mostly aerobic. Long, steady rides at conversational effort (around 65–75% of maximum heart rate, or low zone 2) help develop the mitochondrial density, capillary networks, and fat oxidation capacity that underpin everything else in your preparation. The objective is consistency rather than peak intensity — riders who build this base properly tend to handle the high-intensity work in the later phases far better than those who skip straight to it.
Maintaining a Sustainable Position
This is also the phase where your position is being most thoroughly tested. As ride duration increases, position issues that didn't appear on a 90-minute ride will often emerge on a four-hour one. Pay attention to where discomfort develops, when it appears, and whether it resolves between rides. Small issues that show up now — recurring lower back tightness, knee discomfort, hand numbness, saddle soreness — are signals that the position may need review.
Avoiding Early Overload
Progressive loading is what allows the body to adapt without breaking down. A useful guideline is to increase total weekly training load by no more than around 10% from one week to the next, and to include a recovery week every three or four weeks where volume is relatively maintained, but effort drops back to allow the adaptations to consolidate. Riders who try to compress the build phase often arrive at the later, position-and-intensity phases already carrying fatigue, which limits what they can do next.
2 Months Out: Dial in Your Position
Around two months out tends to be one of the most important windows in the preparation timeline. Your training load is increasing, intensity is being introduced, and your position needs to be ready to support both. After changes to bike fit, it is recommended to allow 3-4 weeks for adaptation to occur, so now is a good time to be fitted.
Aligning Position With Performance
A well-structured fit at this stage focuses on supporting the demands the rider is about to place on the body — refining how power is transferred to the pedals, supporting the pelvis on the saddle through longer and harder efforts, and reducing the kind of compensatory loading that can turn small inefficiencies into nagging discomfort by race week. This tends to become particularly important as training intensity rises and the body has less margin to absorb a sub-optimal position.
Avoiding Last-Minute Changes
Leaving position adjustments too late — especially in the final three or four weeks before the event — can disrupt the adaptation that has already taken place, and affect confidence going into the event week. Refining the position two months out gives the adjustments time to settle into something that feels normal.
Integrating Fit With Training
After any adjustments, allow at least a few weeks of riding to assess how the body is responding. Pay attention to whether new discomfort emerges, whether previously consistent issues resolve, and whether the position feels more or less stable as fatigue accumulates across a long ride. If small refinements are needed, this is the window to make them.
2-3 Weeks Out: Taper and Recover
For a multi-day event like the Tour Down Under, a proper taper involves reducing training volume – while maintaining training frequency and intensity – around 14-21 days out from the event. At this stage the work of the build phase is essentially done, and the goal is to arrive at the start line with the fitness intact and the fatigue cleared.
Reducing Training Load
A well-designed taper allows accumulated fatigue to clear, glycogen stores to restore, muscle damage from training to repair, and the adaptations of the previous weeks to consolidate. Typical reductions are around 40–60% of peak training volume across two to three weeks, while keeping intensity reasonably high so the body doesn't lose its sharpness. This phase is about recovery and consolidation rather than building further fitness — and the single most common taper mistake is panicking and adding training in the final weeks.
Maintaining Movement Quality
Even as volume decreases, keep the quality of your riding consistent. Maintain the cadence, pedalling style, and pacing habits you've trained. Avoid making changes to the bike, the saddle, the cleats, or your kit. Your position should feel stable and familiar by this point, and the priority is preserving that rather than refining it.
Monitoring Recovery
Pay close attention to recovery markers in these final weeks — sleep quality and duration, morning energy levels, motivation to train, and any signs of discomfort that haven't fully resolved. A settled resting heart rate, consistent sleep, and the feeling that you want to ride rather than need to recover are all signs the taper is working. This is how you arrive at the start line genuinely ready rather than just rested in calendar terms.
Race Week: Nutrition and Hydration
Preparation does not stop when training ends. In the final week, nutrition, hydration, and routine become the variables that determine whether the fitness you've built actually shows up on the day.
Staying Fuelled
During multi-stage or long events, consistent fuelling is what allows the rider to keep producing power without crashing. A useful target on the bike is around 60–90 grams of carbohydrate per hour for moderate-to-hard riding, taken in small, regular amounts rather than large servings spaced far apart. In the days leading up to the event, building glycogen stores through a carbohydrate-rich diet — often around 7–10 grams per kilogram of bodyweight in the final 24–48 hours — can help ensure the rider starts each stage with full reserves. For further information regarding fuelling, it’s recommended to seek advice from a qualified nutritionist or sports dietician.
Hydration
Hydration affects power output, perceived effort, thermoregulation, and recovery. The Tour Down Under runs in the Australian summer, often in temperatures of 35°C or above, which significantly increases fluid and electrolyte losses. A reasonable starting point on the bike is around 500–1000 ml of fluid per hour depending on conditions and effort, with sodium replacement (typically 500–1500 mg per litre) to maintain electrolyte balance. Riders who plan their hydration deliberately tend to fare considerably better in the heat than those who rely on thirst alone.
Managing Routine
Race week is not the time to experiment. Stick to foods, gels, drinks, and supplements you have used successfully in training. Keep your sleep schedule consistent. Maintain the pre-ride routine that has worked for you. Most race-day digestive issues, energy crashes, and equipment problems trace back to something the rider tried for the first time that week — consistency is its own performance gain.
The Role of Bike Fit in Event Preparation
A bike fit is not a separate step from your training — it is one of the variables that determines whether your training translates into a strong result.
Supporting Efficiency
A refined position helps improve power transfer by aligning the joints through their most effective range of motion, reduces energy lost to compensatory movement, and supports the rider in maintaining consistent effort across the duration of long stages. Over a multi-hour stage, even small efficiency gains tend to compound meaningfully.
Reducing Fatigue
When the position genuinely supports the rider, less energy is spent stabilising against poor alignment, fatigue develops more gradually across the day, and recovery between efforts — both within a stage and between stages — tends to be faster. This is one of the underappreciated benefits of a good fit at a multi-stage event: it doesn't just help you ride faster, it helps you back up the next day.
Building Confidence on the Bike
Confidence on the bike comes from stability, consistency, and familiarity with how the bike feels under load. In an event setting — particularly one with technical descents, race-day adrenaline, and unfamiliar roads — that confidence allows the rider to focus on the event itself rather than on whether their position will hold up.
Common Mistakes Before an Event
The most common preparation mistakes tend to be last-minute changes — adjusting bike position within three or four weeks of the event, trying new equipment, switching to unfamiliar nutrition, or panicking and adding training that the body has no time to absorb. Each of these can disrupt the adaptation built over the previous months and leave the rider uncertain at the worst possible time. Preparation in the final weeks should focus on refinement and recovery, not experimentation.
A Practical Self-Check
Consider this: does your position feel stable and sustainable across your longest training rides, or do issues emerge — discomfort, unexpected fatigue, the urge to shift around — as the ride goes on?
If issues emerge, it is worth addressing them before race day rather than hoping they won't show up.
Internal Next Steps
If you are preparing for the Tour Down Under:
The Aim
The aim is not just to complete the event. It is to arrive at the start line genuinely prepared, ride efficiently across every stage, and finish each day with the recovery to back up the next one. This is achieved by aligning the three things that actually determine race-day performance: your training, your position, and the preparation around both.
This is the approach taken at Aerro Physio Bike Fit, where event preparation is supported through precision and planning rather than guesswork in the final weeks.
FAQs
1. When should I get a bike fit before an event?
Around two months before the event tends to be ideal. This allows time for any position changes to settle and for the body to adapt, while still being recent enough that the fit reflects how you are riding now rather than how you were riding earlier in the year.
2. Can a bike fit improve event performance?
Yes. A well-positioned rider tends to transfer power more efficiently, fatigue more gradually, and recover more readily between stages — all of which can translate to better performance over a multi-day event.
3. Should I change my position close to race day?
Generally, it is better to avoid major changes within the final three or four weeks. Position changes take time to integrate, and altering the setup too close to the event removes the window the body needs to adapt.
4. How important is tapering before an event?
Tapering is one of the most important — and most often underdone — elements of preparation. It allows accumulated fatigue to clear, glycogen stores to restore, and training adaptations to consolidate, so the fitness you have built actually shows up on the day.
5. What should I focus on during race week?
Nutrition, hydration, sleep, and routine. Race week is not the time for new foods, new equipment, or last-minute training — it is the time to do less, sleep well, and arrive fresh.
6. How do I know if my position is ready?
If your position feels stable and sustainable across your longest training rides — without recurring discomfort or the need to shift around — it is likely ready. If issues emerge as duration increases, it is worth addressing them before the event rather than after.
About the Author
Harri Harvey Physiotherapist at Aerro Physio Bike Fit
We proudly help cyclists ride stronger, faster, and pain-free through expert physiotherapy bike fitting. Harri is an experienced physiotherapist and bike fitter with additional training in bicycle mechanics. Through the use of motion-capture technology and detailed bike fitting practices, we aim to optimise your position, improve performance, and prevent injury on the bike. Whether you're a competitive rider or a weekend cyclist, Aerro Physio Bike Fit ensures a personalised approach to improve your comfort, efficiency, and confidence on every ride.