Best Bike Split Ambassador, Txomin Juaristi, has been racing time trials for years. The discipline demands a specific kind of preparation, one where the margin between a good execution and a wasted effort often comes down to how well a rider distributes their effort across a course they may have never ridden before. Three years ago, a coach introduced him to Best Bike Split, and his approach to race preparation has never been the same.
"I like having certainty about how many watts I should produce at every moment to execute an effective time trial," he says. That search for certainty is exactly what drew him to the platform, and it is exactly what he has found.
The Process: How the Pacing Plan Comes Together
His workflow is straightforward and has become routine. Before a race, he uploads the GPX file of the course, inputs his current FTP data, and lets the platform analyze the optimal watt targets for each segment of the route. The output is a pacing plan built specifically for that course and his current fitness, accounting for the grade, wind, and the physics of how power translates to speed across variable terrain.
He then exports that file directly to his bike computer. On race day, he rides to the instructions the platform generated.
"The pacing plan is the most valuable feature for me," he says. "It gives very precise guidance tailored to the course profile and my performance data."
For a time trialist, this matters in a way that is different from most cycling disciplines. There is no drafting, no tactical racing, no responding to moves from other riders. The entire race is an exercise in self-management, in distributing a finite amount of energy as efficiently as possible across a course that punishes both over-effort and under-effort. Getting that distribution right is the whole game, and Best Bike Split gives him a data-backed plan for doing exactly that before he turns a single pedal stroke in competition.
The Results: Racing to a Top-5 National Finish
He has used the pacing plan in every time trial he has raced over the past three years. The most significant result came at the 2024 Spanish National Time Trial Championships, where he finished fifth. On a hilly 33-kilometre course near Madrid against a field that included professional riders, executing a precise, course-specific pacing strategy was not just useful. It was the difference between a race well-ridden and one lost to inefficiency.
"It allows me to approach races with a clear plan and more confidence, knowing exactly how to distribute my effort," he says. That confidence is not just psychological. It is grounded in the knowledge that the plan he is following has accounted for the variables that most riders are guessing at, the aerodynamics, the rolling resistance, the wind, and the grade changes that determine how hard any given segment of a course actually is.
Without Best Bike Split, he says, his preparation would be "much more based on feeling and less precise, without a clear pacing strategy adapted to the course." For a time trialist operating at the national championship level, that imprecision is not an acceptable margin.
Who Benefits Most: Individual Time Trialists
When asked who he thinks benefits most from the platform, his answer is direct: individual time trialists. The event is uniquely suited to what Best Bike Split does, which is translate a rider's power profile and a course's physical demands into an optimal pacing strategy. In a discipline where every second comes from execution rather than tactics, that kind of precision has a direct and measurable impact.
His advice to cyclists considering the platform is equally direct. "It's a platform that helps you be as efficient as possible. It takes into account many key variables like CdA, wind, and rolling resistance, which makes a big difference in performance."
"Three years in, the workflow has become standard preparation. Upload the course. Input the data. Race the plan."
You can follow Txomin's race season, including his next time trial, on Instagram @txominjuaristi.
