Tips to Sharpen Your Bike Leg Ahead of Race Day

In most triathlons, the bike accounts for more than half of your total race time. Arguably, that makes it the discipline most worth investing in.

Yes, your swim needs to be strong enough to get you through the water efficiently, in a good position, and with enough energy left to execute the rest of your race. And for many athletes, the swim is the course of the most anxiety. (We’ve covered swim tips here.)

But once your swim is in a good enough place – and assuming you’re an age-group athlete rather than someone trying to optimize every last second – the bike is where you’ll likely see the greatest gains.

Not only can improved bike fitness lead to a faster bike split, it can also set you up for a dramatically better run.

With that in mind, here are our top tips and tricks to sharpen your bike speed ahead of race day.

Tip 1: Practice Hills

Even if your goal race is flat, there is a lot to be gained from including hills in your training.

Cycling has a significant strength component. After all, there are only two ways to produce more power on the bike: pedal at a faster cadence or push a bigger gear.

The ability to push bigger gears for longer periods comes down largely to muscular strength and endurance, both of which can be developed effectively through climbing. As an added bonus, hill workouts often provide a welcome break from the indoor trainer and some of the most scenic riding of the year.

I coach a local triathlon group here in Vancouver, and hill work features in our training regularly. Importantly, the benefits of hill training for flat-course racing are often overlooked. Don’t think of hill work as training only for hilly races – think of it as strength training on the bike.

Tip 2: Practice the Terrain

While hill training is valuable regardless of your goal race, terrain still matters. That means studying the course ahead of time and understanding the specific demands you’ll face on race day.

If your race involves long periods in the aero position, make sure your training reflects that. Incorporate extended intervals in your TT position and become comfortable producing power while staying aero. If traffic, road conditions, or safety concerns make that difficult outdoors, dedicated trainer sessions can be an excellent alternative. One of the most important principles of training is specificity: the more closely training mirrors race demands, the better prepared you’ll be on race day.

The same applies to hilly courses. If your race includes significant climbing and descending, don’t just practice uphill riding – practice the rhythm of the course. Hilly races often involve repeated surges above threshold on the climbs, followed by periods of recovery on the descents.

A great example comes from the recent men’s T100 race in San Francisco. Several professionals described the bike leg as essentially 12 x 3min VO2 max efforts up the climbs, each followed by a recovery. None of them rode a steady-state effort.

The bike leg is often the most dynamic and variable discipline in triathlon. By understanding the demands of your course in advance and tailoring your training accordingly, you’ll arrive on the start line with a significant advantage.

Tip 3: Learn to Ride the Terrain

Building on Tip 2, as much as FTP, average power, and normalized power dominate cycling discussions, they are not the sole determinants of a fast bike split.

At the end of the day, the goal is simple: get from point A to point B as quickly as possible. Sometimes that means producing more power. Sometimes it means riding smarter.

For example, on a fast descent, tucking into a more aerodynamic position may gain you more speed than continuing to pedal. Likewise, strategically applying extra power at key moments – such as cresting a hill, accelerating out of a corner, or responding to a change in terrain – can help maintain momentum and increase overall speed.

The strongest cyclists understand that speed and power are not always perfectly aligned. They use their power intelligently, adapting their effort to the demands of the course rather than riding every section at the same intensity simply because a power target says so.

So yes, watts matter. Power matters. But speed is ultimately what determines your bike split, and the best riders know how to use the terrain to their advantage.

Tip 4: Run Off the Bike

We opened this article by noting that investing in your bike fitness can not only improve your bike split, but also set you up for a dramatically better run.

To fully capitalize on that advantage, however, it’s important to practice running off the bike. Triathletes commonly refer to these sessions as “brick workouts.”

Running well after cycling is a highly specific skill. The transition places unique demands on your neuromuscular system, and the sensation of running on tired legs is something that improves with practice.

The good news is that these sessions do not need to be long to be effective. Even a 10-minute run after a key bike workout can help prepare your legs for race day and familiarize you with the transition. While it is beneficial to occasionally include longer brick runs, most can be relatively short and focused simply on adapting to the feeling of running after a hard ride.

Whenever possible, place these runs after more demanding bike sessions. This allows you to simulate race-day fatigue and practice maintaining good form when your legs are already under load.

In sum, if you’re looking for one discipline to invest a little extra time in before race day, the bike is often the place you’ll see the biggest return.