The difference between riding your bike indoors as opposed to outdoors isn’t just the scenery. Outside on the road your position on the bike plays a very important role in determining your success: the aerodynamics of your bike and position influence your speed significantly. Cyclists chase the perfect position and equipment to be as efficient and fast as possible on the road. Indoors, we see almost the exact opposite. While maximum efficiency is still the goal, racers do not need to focus on aerodynamics whatsoever — maximum power production in the most comfortable riding position, regardless of aerodynamics, is everything.

This means that the choice to sit, stand, or use a combination of the two is completely up to the racer, and it’s a contentious debate among the racers on our own team!

The Case for Standing

Indoor Specialist racers Matt Brandt and Ryan Larson believe the best way to produce sustained power inside is out of the saddle. Shifting into a massive gear, lurching forward and stomping the pedals at sub-70 rpm, these two racers can stand at threshold power forever.

Ryan, a former collegiate middle-distance runner-turned-cyclist has always favored standing while doing hard efforts on the bike. “When I first started cycling, one of the hardest things for me was to get my legs adapted to spinning at around 90 revolutions per minute (rpm). The problem I was having was that my legs would get tired way before my heart rate would max out.”.

Ryan found Zwift when a friend introduced it to him in 2017, his muscle memory from his running days became his secret weapon. “When I started racing on Zwift, I could go back to what my legs were used to and use my calves and quads in a similar manner to when I ran. Since I am on the lighter side, standing also allows me use the little weight that I have to maintain a threshold much longer than if I would sit and spin. By switching my position from sitting, to hovering over the saddle, to standing straight up, I activate different muscles so I can maintain power but save the muscles I use to snap when a break occurs or when it’s time to sprint to the line.”

Ryan has used this technique to be a dominant force in Zwift Pro-Am racing circuit in 2019 and 2020, and it’s began to trickle into some of our other racer’s styles as well. Matt Brandt, known for his gutsy breakaway attacks, didn’t adapt to the standing technique until after seeing Ryan smash an effort out of the saddle in a race stream. 

Matt has shown that this skill can be perfected by committing to practicing the effort. “I began doing standing intervals back in 2009. I was competing in UCI 1.1 races with an professional Italian road team and as the races hit the climbs, I struggled. I started doing hill repetition intervals on the famed Monte Serra climb in Tuscany, and found myself riding out of the saddle for longer and longer — until I could do the entire climb without sitting.”

It wasn’t until Matt saw Ryan dominating races out of the saddle on Zwift that the technique came back to him. “I realized: we have smart trainers that can give us the perfect amount of resistance needed. If I can get the feeling of flying-free, out of the saddle pretending my old teammate Andrew Talansky is chasing me down when I am off the front of a Zwift race, then I am 100% going to embrace that. Do what motivates you!”

The Case for Sitting

On the other side of the spectrum, Indoor Specialist racer Matt Gardiner contends that the best way to produce sustained power is seated by turning the legs over at a steady, strong cadence.

Matt, a recently “retired” long-course triathlete and time trial (TT) specialist, is pretty good at doing the same thing for a very long time. On the TT bike, that means putting out consistent power in the saddle while staying as still and aerodynamic as possible. After years of racing and riding the TT bike for triathlon, putting out power while seated has become second nature.

“For me, sitting and spinning a higher cadence allows me to pedal through fatigue — almost as if I can fake my legs into pushing more power. As long as I keep my legs spinning against the trainer’s resistance, I’ll keep up with my competitors.” Matt excels at mid-range climbs on Zwift like London’s Box and Leith Hill KOMs, and Watopia’s Volcano KOM. “I’ve always ridden climbs seated. When I joined Zwift in 2016, I worked on my climbing relentlessly after getting dropped in races when the road turned up. Every week, I would ride Box Hill as hard as I possibly could, glued to the saddle. In between those efforts, I filled my riding with workouts in ERG mode; pedaling against the trainer’s set resistance with my eyes closed.” The result of this approach to riding has earned him success in Zwift’s Pro-Am racing series, a state championship in time trial, some incredibly fast half-Ironman bike splits, and the course record at his local monthly time trial series.

The Case for the All-Rounder

It’s clear that the indoor trainer gives racers the chance to optimize their riding style to produce the best power in every given situation. While there isn’t a right or wrong way to ride the bike indoors, we have found it could be beneficial for racers to vary their position — engaging different muscles to stave off fatigue and improve on weaknesses. A racer for Indoor Specialist who has found balance in standing and seated efforts is Tully Lyster. A former elite triathlete and current time trial weapon, Tully regularly works on seated, low-cadence efforts at high wattage, but can jump out of the saddle for long climbs: always racing with his trainer difficulty set to 100%.

“Every week, I aim to do 2 strength and endurance sessions using a climb like Watopia’s Epic KOM. These sessions usually feature three 20-minute tempo efforts seated at under 55 rpm, and one 15-min effort out of saddle at less than 50 rpm. In Zwift races, I am typically seated on the flats, but when racing hard up a climb I’m up and out of the saddle. Do what works best for you, maintaining your form, heart rate and power!”

What position do you think is optimal for races and rides indoors? Do you find yourself out of the saddle regularly, or are you a seated spinner? While there doesn’t seem to be a right answer to these questions, it does appear that there are benefits to each. Developing your riding style by practicing out of the saddle efforts, or seated climbing could offer you an edge on your competition. Give your position some consideration and push yourself to try something new!