Favero Assioma PRO RS-2 Power Pedals: Ultimate Cycling Upgrade

The Favero Assioma PRO RS‑2 is one of the most exciting breakthroughs in pedal-based power meters for serious cyclists. Whether you’re a weekend warrior, a Strava-chaser, or training for your first stage race, the PRO RS‑2 brings together incredible precision, near-perfect compatibility with Shimano® SPD-SL® cleats, and a super light, podless design that installs in just a few minutes. Let’s dive into why the Favero Assioma PRO RS‑2 is making so many waves in the cycling world, and what you can expect if you’re thinking about leveling up your ride.

Why Power Meter Pedals, Anyway?

First off, a brief detour: power meters are the gold standard in cycling training. Unlike heart rate (which can vary for a million reasons), power is objective. It tells you how hard you’re pushing, right down to the watt. And pedal-based power meters? They’re the most versatile, easy-to-swap, and least likely to void your bike’s warranty.

But—there’s always a “but”—not all power meter pedals are created equal. Some add tons of weight, others don’t play nicely with popular cleat systems, and older models sometimes packed big battery “pods” that looked clunky and snagged your socks.

Featherweight, Podless, & Super Accurate

The most immediate impression? These are light. At just 123.5g per pedal, the RS‑2 is lighter than most regular road pedals. That’s a huge bonus for anyone obsessed with minimizing rotational weight, especially in race scenarios or long climbs. The podless design means all the clever electronics and rechargeable battery are tucked away inside the axle, with nothing sticking out to catch or break. Just a clean, svelte look.

And let’s talk accuracy: ±1% power precision, even if you run oval chainrings. That’s as good as it gets—Favero uses their IAV Power System and gyroscope tech to measure your output, so even pedal smoothness, torque effectiveness, and platform center offset (PCO) get tracked, not just raw watts. You get detailed left/right balance from true dual-sided sensors, and the system actively compensates for temperature changes for rock-solid data all ride long.

Seamless Shimano SPD-SL Compatibility

Raise your hand if you ride Shimano road pedals. (Yeah, that's a lot of hands.) The PRO RS‑2 clips in with Shimano SPD-SL cleats, including the most common models: SM-SH10, SM-SH11, and SM-SH12. No need to fuss with new shoes or cleats—install these, and you’re ready to roll. It’s a level of daily convenience a lot of riders take for granted… until it’s missing.

If you’re the type to swap bikes or want to take “your” pedals to a borrowed ride or on vacation, the installation is refreshingly simple. No crank arm swapping, no fussing with proprietary tools. A standard Allen key and a few minutes’ work, and you’re set.

Unbeatable Battery Life & Charging

There’s nothing more frustrating than a dead power meter at the start of a ride. Thankfully, battery life here is stellar; you’ll get 60+ hours per charge, thanks to Favero’s low-draw electronics and integrated rechargeable lithium-ion batteries. The USB magnetic charging cable is quick and easy, and you can check battery status anytime via the Assioma app or your head unit.

No fiddling with coin cell batteries or opening up the pedal to replace parts—just snap on the charger and you’re back in business. That’s peace of mind, especially for those long, multi-day events or a forgetful pre-ride routine.

Advanced Metrics & Training Data

Let’s geek out for a second. The PRO RS‑2 doesn’t just spit out power and cadence; it digs deep into cycling dynamics. Want to track your left/right leg balance, see where your power phase starts and ends, analyze pedal smoothness and torque effectiveness, or drill down into platform center offset (where on the pedal you’re actually applying force)? It’s all here.

If you’re working with a coach or using structured training, this data can transform how you ride. You’ll spot imbalances, improve pedal stroke, and catch form degradations before they become injuries or bad habits. For time trialists or anyone obsessed with marginal gains, these numbers become your secret weapon.

Built to Last: Durability & Real-World Reliability

Road rides can get gnarly—wet, muddy, or baking hot. The RS‑2 is built to withstand the work. You get IP67 waterproofing, so absolutely no worries about rain, puddles, or post-ride bike washes. The pedals’ carbon-fiber tech-polymer bodies handle knocks, and the spindle design (completely sealed and independent from the pedal body) means long-term durability. If you ever wear out a pedal body, you just swap the shell and keep the sensor—very pro.

Maintenance is refreshingly easy, and Favero provides a two-year warranty for peace of mind. Most riders report years of trouble-free operation.

Modular & Versatile: Multi-Bike, Road & MTB

One of the coolest touches: the modular design. You can transfer the same RS‑2 spindle (the “brains” and sensor) into different pedal bodies, letting you use the power meter on a road or mountain bike without buying a second full power pedal system. That’s legit versatility for multi-discipline cyclists or those who like to mix it up seasonally.

Just remember: for road, it’s SPD-SL only. If you need LOOK Keo or other cleat compatibility, this isn’t your match.

Connectivity: ANT+ & Bluetooth

The RS‑2 works with all standard cycling computers and smart trainers, supporting both ANT+ and Bluetooth. Whether you ride with a Garmin, Wahoo, Bryton, or use your phone and apps like Zwift, TrainerRoad, or the Favero Assioma app—the data just works.

If you’re using a multi-bike setup or want to analyze your rides, syncing and keeping everything up to date is straightforward. You’ll even get firmware updates direct from Favero via the app.

Installation & Everyday Use

Favero’s famous for making installation and setup a breeze. Just screw in, pair with your app or head unit, calibrate as prompted, and spin for a minute or two. It’s all familiar if you’ve ever used a pedal-based system.

In actual daily use, the RS‑2 pedals “disappear”—and that’s the highest praise. No annoying flex, no creaking, nothing extra underfoot. You just ride, and the numbers come in. Riders especially appreciate the 10.5mm stack height and standard +53mm Q-factor, so you preserve your bike fit; pedal ergonomics stay perfect, and you can corner as hard as before. For riders accustomed to “normal” road pedals, there’s no learning curve or weird angles to accommodate.

Comparing to the Competition

You might be wondering how the RS‑2 stacks up against rivals like Garmin Vector, Wahoo POWRLINK, or Look’s Exakt pedals. In real-world feedback, the RS‑2 is praised for:
- True, reliable ±1% accuracy (not just “in the lab”)
- Simpler, podless design (no clunky bits to catch)
- Lower weight
- Genuine SPD-SL integration
- Long battery life and ease of charging
- Cheaper than most “big brand” alternatives

The only downside? You’re locked to SPD-SL cleats, but for most roadies, that’s a bonus.

Final Thoughts: Is the Favero Assioma PRO RS‑2 for You?

This isn’t just a power meter for “pros only.” The RS‑2 is for anyone who values data, wants to get the most out of training, loves a seamless ride experience, and hates faffing with complicated installs. The modular, rugged design is a winner, and the scale-tipping weight and spot-on numbers make these pedals truly special.

If you want effortless accuracy and bulletproof performance, and ride with SPD-SL cleats, there’s no better option right now. Clip in, hit the road, and let the Favero Assioma PRO RS‑2 power your next breakthrough.

If you’re thinking about your training goals, want to chase new PRs, or just geek out on bike tech, the Favero Assioma PRO RS‑2 deserves a spot on your dream setup. The road is calling—get the numbers to back up your journey.