Early Years and the Unconventional Foundation

Primož Roglič’s ascent to the top of professional cycling is one of the sport’s most remarkable transition stories. Before turning to road cycling, he was a competitive ski jumper, representing Slovenia at the 2006 Winter Olympics in Turin and winning a Junior World Championships bronze medal in 2007. This unusual background provided him with a unique physical and mental foundation. Ski jumping demands extraordinary core stability, explosive leg power, and the ability to execute under intense pressure with minimal room for error. It also cultivates a high pain threshold and comfort with extreme physical sensations. When Roglič began cycling as a serious pursuit in his early 20s, he carried these traits into a sport where they were not immediately obvious advantages.

His first professional team, Adria Mobil in 2013, and later his move to Jumbo-Visma in 2016 showcased a rider with exceptional time-trial capacity but a raw climbing style. Early race data showed Roglič producing high absolute power outputs on flat and rolling terrain, but on sustained climbs he lacked efficiency and pacing judgment. In races like the 2016 Vuelta a España, his climbing was characterized by aggressive surges followed by periods of recovery, indicating a lack of experience in managing effort over long ascents. Analysts often noted that his weight was slightly higher for a climber, hovering around 68-70 kilograms, and his power-to-weight ratio was not yet elite. However, his ability to descend quickly and his mental toughness were already apparent. Those early shortcomings set the stage for a methodical, data-driven transformation.

The Methodical Climbing Transformation

Around 2017‑2018, a clear shift occurred in Roglič’s trajectory. The team committed to an aggressive climbing development program, targeting quantifiable metrics and biomechanical inefficiencies. The results became visible over the next three to four years.

Power-to-Weight Ratio Optimization

The most critical lever for climbing improvement was body composition and power maintenance. Roglič worked with a performance team to reduce his body mass from approximately 68 kg to 64-65 kg while preserving, and in some cases increasing, his functional threshold power. Public data released by his team and third-party analysts tracked his power-to-weight ratio climbing from roughly 5.8-6.0 W/kg in 2016 to above 6.4 W/kg at his peak climbing efforts during the 2019 Vuelta a España and 2020 Tour de France. Altitude training camps in Sierra Nevada, Tenerife, and Livigno played a central role. These camps allowed him to accumulate volume at high intensity while stimulating hematological adaptations. Gym work shifted from general strength to exercises that mimicked climbing positions, such as single-leg presses, Romanian deadlifts, and core stability drills, all aimed at maintaining torque while reducing muscular bulk.

Pacing and Race Reading Evolution

One of the most significant improvements was in pacing strategy. Early in his career, Roglič often followed accelerations from rivals like Chris Froome or Nairo Quintana, leading to premature fatigue. Over time, he adopted a more conservative, power-meter-guided approach, riding within sustainable thresholds during early mountain stages and preserving energy for decisive moments. His signature seated, high-cadence climbing style on steep gradients reflects a deliberate effort to manage muscle fiber recruitment and avoid lactate buildup. Roglič also developed an acute sense of race dynamics, knowing when to let attacks go and when to respond. This tactical maturity was evident in the 2019 Vuelta, where he allowed Movistar’s team to control the pace on multiple climbs, then used his time trial strength to take the overall win. By the 2023 Giro, he was dictating climbs from the front, a sign of both confidence and refined pacing.

Technical Refinements and Equipment Integration

Roglič’s climbing technique underwent subtle but important changes. He adopted a slightly longer crank arm to produce consistent torque on steep gradients, particularly on ramps above 10%. His saddle position was optimized for a more forward weight distribution, improving traction on the rear wheel during seated climbing. Team mechanics adjusted gear ratios to allow higher cadences on steep pitches, reducing muscle fatigue. Aerodynamic assessments on climbing bikes also contributed small gains, as Roglič used a more compact position on the handlebars to lower his frontal area. These marginal gains accumulated into measurable improvements over race distances of 5,000 meters of elevation gain per stage.

Peak Climbing Performances Across Grand Tours

From 2019 onward, Roglič has been consistently ranked among the top three climbers in the World Tour, with his performance data rivaling the best of the era. His grand tour victories and stage wins provide a timeline of his climbing evolution.

Vuelta a España 2019: The Breakthrough

Roglič’s first grand tour win was built on time trialing, but his climbing was notably stronger than in previous years. On stages like the Alto de la Covatilla, he matched accelerations from pure climbers, and on the Lagos de Covadonga, he limited losses on a stage where Movistar set a punishing pace. Data from the final climb of the Covatilla showed Roglič sustaining 6.1 W/kg for 38 minutes, a figure that would have been unthinkable two years earlier. The win established him as a grand tour contender, but his climbing was still seen as slightly behind the best.

Vuelta a España 2020: Dominance in the Mountains

The 2020 Vuelta was a different story. Roglič won three mountain stages, including the iconic Alto de l’Angliru, where he attacked from the base and dropped all rivals, including a young Tadej Pogačar. Power data from the Angliru showed Roglič sustaining 6.2 W/kg for 45 minutes on the lower slopes, with peak outputs above 7.5 W/kg on the steepest ramps. His climbing had evolved from survival to attack. He also won the stage to La Farrapona, again demonstrating sustained power on long climbs. The Vuelta 2020 remains the clearest example of Roglič’s climbing at its peak, combining endurance, power, and tactical decisiveness.

Tour de France 2020 and 2022: Lessons and Adaptation

The 2020 Tour de France was a critical moment in Roglič’s climbing development. He controlled the race for two weeks, holding yellow on climbs like the Grand Colombier and the Col de la Loze. His climbing was solid, but Pogačar’s explosive attack on the final time trial to La Planche des Belles Filles exposed a vulnerability on short, steep finishes. Roglič’s inability to respond to repeated accelerations over a 5-kilometer climb indicated that his peak power over short durations lagged behind his sustained power. By the 2022 Tour, Roglič returned with improved explosive capacity. He won the stage 8 mountain finish to Lausanne and stage 17 to Peyragudes, where he attacked on the final climb and held off a chasing group. His ability to accelerate from a steady tempo had improved, though he remained less explosive than Pogačar. The 2022 Tour showed a more complete climber, capable of both long-range tempo and short, sharp attacks.

Giro d’Italia 2023: High Altitude Mastery

Roglič’s 2023 Giro campaign confirmed his climbing evolution reached a new level. He won the queen stage to Lago Laceno with a long-range attack and the mountain time trial to Val di Zoldo. Most telling was his performance on the Blockhaus and Tre Cime di Lavaredo, where he maintained high power outputs at altitudes above 2,000 meters, a skill that earlier in his career had been a weakness. Data from the Blockhaus stage showed him sustaining 6.0 W/kg for over 50 minutes at altitude, indicating robust aerobic adaptations. His high-altitude climbing had become a weapon, not a liability, allowing him to gain time on rivals who struggled with thin air.

Systemic Factors Behind the Climbing Evolution

Roglič’s climbing improvement did not occur in isolation. It was supported by multiple interconnected factors that reinforce each other.

  • Periodized training with high-altitude emphasis. Roglič participates in two to three altitude camps per year, each lasting 14 to 21 days. These camps focus on threshold intervals on long climbs (20-40 minutes), combined with Z2 volume for base endurance. His coach Marc Lamberts uses power data to calibrate sessions, targeting specific wattage ranges based on race demands.
  • Nutrition and weight management strategy. A dedicated nutrition team adjusts macronutrient ratios based on training load and race profile. Roglič maintains a lean composition year-round, with body fat percentage estimated around 6-8%. Recovery nutrition includes protein timing and carbohydrate periodization to optimize glycogen storage and fat adaptation.
  • Experience in high-mountain racing. Racing the Vuelta, Tour, and Giro multiple times has given Roglič a deep understanding of altitude effects, heat management, and pacing across three weeks. He now climbs with a calm, measured style, rarely showing signs of panic or overexertion.
  • Team support and tactical evolution. Visma-Lease a Bike’s roster includes climbing domestiques like Sepp Kuss and Jonas Vingegaard who can set a relentless tempo that softens rivals. The team also uses power-matching strategies on climbs, allowing Roglič to conserve energy while teammates drive the pace. Equipment innovations, such as lightweight bike frames and optimized gearing, provide direct performance benefits.
  • Mental resilience from ski jumping. Roglič’s background in ski jumping cultivated a high tolerance for discomfort and an ability to stay calm in high-stakes moments. He rarely shows negative body language on climbs and has developed a strong sense of when to push and when to recover. This mental edge is often underappreciated but is critical in grand tours where psychological fatigue accumulates over three weeks.

Comparative Position Among Elite Climbers

Roglič’s climbing profile is distinct from other grand tour contenders. His sustained power over 30-40 minute efforts is comparable to Chris Froome’s peak climbing data from 2015 and 2016. However, he lacks the explosive accelerations of Tadej Pogačar, who can produce 7.5-8.0 W/kg for short durations. Roglič’s strength lies in tempo-based climbing, where he can set a pace that few can match for extended periods. He is also a superior time-trialist compared to pure climbers like Quintana or Nairo Quintana, giving him a unique ability to gain time in non-mountain stages. However, on short, steep finishes (less than 10 minutes of effort), Roglič has sometimes been vulnerable. For example, on La Planche des Belles Filles in 2020 and on short, explosive stages in the 2021 Tour, he struggled to match the acceleration of lighter riders. Improving his peak power output over 5-10 minute efforts remains an area for development. Overall, Roglič ranks among the top five climbers in the World Tour in terms of grand tour performance, with his data comparable to Froome’s best years.

What Lies Ahead for Roglič’s Climbing Development

Roglič’s move to Bora-Hansgrohe for the 2024 season introduces a new environment that could provide additional stimulus for improvement. The team has a strong performance infrastructure, including access to advanced wind tunnels, altitude facilities in Livigno, and experienced sports science staff. At 34 years old at the start of 2024, Roglič is at an age where some riders begin to decline in raw power, but experience and pacing can compensate. His stated goal of winning the Tour de France again means his climbing will need to remain at the elite level, particularly against Pogačar and Jonas Vingegaard. Future improvements may come from further refining his explosive power on short climbs, optimizing race nutrition for third-week performance, and continuing the altitude training that has worked well. Given his history of steady improvement, it is reasonable to expect his climbing to stay among the world’s best for at least two to three more seasons, as long as he avoids major injuries and maintains his current training load.

For additional context on Roglič’s career, see the detailed analysis at CyclingNews, performance breakdowns at VeloNews, and official race coverage on the UCI website. Public power data discussions by analyst Mathieu Naessens on Twitter provide additional context on Roglič’s climbing wattages.

Primož Roglič’s climbing journey is a case study in how targeted, data-driven training can transform a rider from a time-trial specialist with raw potential into a grand tour-winning climber. His evolution from struggling on long ascents to dictating the pace on the Angliru, Blockhaus, and Tre Cime shows what is possible with consistent dedication, a supportive team, and an intelligent approach to performance. Roglič’s climbing is no longer a limitation; it is one of the defining weapons of his career, and it will be the foundation of any future grand tour success. His story is one of adaptation and relentless optimization, and it offers a template for riders who arrive in the sport with unconventional backgrounds and big engines.