Favero Assioma PRO MX-1 MTB Power Meter Pedal

Let’s be real: power meter pedals used to be road‑only, front‑loaded contraptions, bulky pods dangling like afterthoughts. Then Favero came along and completely changed the off-road game with the Assioma PRO MX. If you're into mountain biking, gravel grinding, or even CX, this Italian-made pedal brings pro‑grade power data to your two‑bolt cleat system—and it won’t break your bank.

What Sets It Apart

- SPD-compatible pedals built for trails: These work with Shimano SM‑SH51 cleats—a true MTB/gravel solution, officially built for messy, muddy, rugged rides.
- All electronics sealed inside the spindle: No pods, no flappy bits. Everything—battery, strain gauges, Bluetooth/ANT+ modules—is tucked into the spindle. Robust. Weatherproof. Seriously sleek.
- Dual-sided power options (MX‑2) or single-sided (MX‑1): Choose what suits your budget and needs. Dual-sided gives you left/right power balance; single‑side doubles the measured left-leg power. Accuracy is ±1%.
- 60+ hours of ride time per charge: Their rechargeable lithium-ion battery outlasts many competitors. No constant cell swaps. Ride, recharge, repeat.
- Lightweight, user-serviceable design: At just 194 g each, stack height of 11.2 mm, and aluminum construction, they’re rugged yet nimble. And swapping pedal bodies or spindles? Easy and inexpensive.

Why You’ll Fall in Love with It

- Solid Feel Underfoot: These don’t feel cheap. Gravel, mud, rocky terrain—it handles rough conditions gracefully. Reviewers note they shrug off trail abuse with minimal marks and zero dropouts.
- Reliable Power Data: Across multiple testing platforms (e.g. turbo trainers, Garmin Edge), Favero's Pro MX pedals deliver consistent, repeatable power with full cycling dynamics metrics. Metrics like power phase, pedal smoothness, torque efficiency, and platform center offset (PCO) help you truly analyze your pedal stroke.
- Smart Connectivity: Works with ANT+ and Bluetooth—and can pair with multiple devices simultaneously (edge head units, watches, phone apps). Just know that full cycling dynamics require ANT+.
- Minimal Maintenance Hassles: Internal electronics = fewer failures. Need a part swap? You can replace pedal bodies or spindles easily. No more external pods breaking off.

Features That Hit Different

Instantly angular velocity (IAV) power calculation gives you ultra-responsive measurement that reflects sprint bursts or rapid pedaling variations. The system auto-calibrates and compensates for temperature—so you can just ride without fuss.

Cycling dynamics include:
- Left/Right balance
- PCO (Platform Center Offset)
- Power phase
- Torque effectiveness
- Pedal smoothness
- Rider position metrics
All visible in the Favero app or via ANT+ head units. These help diagnose bike fit or pedaling inefficiencies.

Waterproof to IP67: Rain, mud, or even floating a pedal? No problem. It keeps riding, stowed, and transmitting.

Who It’s For

- Gravel and CX athletes who want accurate, portable power data without compromising on trail compatibility
- MTB riders who need a sealed, lightweight SPD pedal that doubles as a high-end power tool
- Data junkies and cycling coaches, because the advanced metrics give real deep insight
- Average cyclists or endurance riders wanting to improve efficiency by monitoring pedaling technique
- Athletes who share bikes or sync across disciplines, thanks to its bike-swappable design

Setup & Ride: What to Expect

Install is simple: unscrew your old pedals with a 15mm spanner (ideally torque wrench), install the new ones—done. Pair to your head unit or phone using Favero App. Set crank length, zero offset. You’re ready.

Battery gives you 60 hours on a charge—keep it topped up via USB–magnetic cable. Still longer than most competitors.

Ride off-road, change bikes if you want, use the shared data across devices. Calibration happens automatically, no user fuss generally needed.

Single vs Dual-Sided: MX‑1 or MX‑2?

• MX‑1 (single-sided, left pedal): You get power reading from one side and it doubles it for total watts. Simpler, cheaper, still ±1% accurate. Great for training consistency.

• MX‑2 (double-sided): Want left/right balance and full cycling dynamics? Go here. More data, more insight, more cost (≈$750), but still better priced than most dual-sided pedals. 

Pros & Cons—What to Know

Pros:
- Remarkably accurate (±1 %)
- Long battery life
- Easy to install and switch between bikes
- Internal electronics = improved weather resistance and durability
- Advanced metrics for deep training insight
- Competitive pricing vs Garmin/SRM

Minor Cons:
- Clip-in tension may feel slightly stiffer than traditional Shimano SPD at first—gets better over time.
- Uses proprietary charger, and battery is not user-replaceable (though lasts 500 full charge cycles)
- Full cycling metrics require ANT+ (Bluetooth provides basic power, cadence only)

Final Word: Power Meter Pedal Done Right

In 2025, many still view power meter pedals as road-only tech—or assume dual-sided comes with a huge price. Favero Assioma PRO MX shatters both myths. It's durable, accurate, trail-ready, and more affordable than most.

If you want actionable data, trail compatibility, and worry-free performance—grab the MX‑1 or MX‑2 and let your training take the front seat.