Favero Assioma PRO MX-1

Favero Assioma PRO MX-1 — Single-sided SPD power meter pedals for MTB and gravel

The Assioma PRO MX-1 is the entry point to power measurement on MTB and gravel: a sensor built into the left pedal spindle, 100% SPD® compatible, with the same mechanics and durability as the dual-sided version. Total power is estimated by doubling the left leg, with ±1% accuracy on the measurement itself.

Left-side sensing, upgradeable

The sensor sits inside the left spindle — no external pod exposed to impacts or spray. IAV Power with a 3-axis gyroscope reads instantaneous angular velocity and stays accurate even under very irregular pedalling: surges, technical sections, oval chainrings. The MX-UP upgrade kit lets you move to dual-sided later without buying a whole new pair.

Built for MTB and gravel

6061-T6 aluminium body, chromoly clipping mechanism (up to 800 HV hardness), optimised mud shedding. Rated for category 3 bicycle use: demanding terrain, drops up to 61 cm. IP67 waterproofing means jet washing is no problem.

Battery and charging

Up to 160 hours per charge, and 15 minutes of magnetic charging gives 15 hours of riding. The lithium-ion battery is sealed inside the spindle — no batteries to replace.

Replaceable body, modular spindle

The pedal body can be swapped in the workshop, so wear or an impact never writes off the sensor. The PRO spindle is shared with the road versions (RL / RS): change the body and the same sensor moves from MTB to road.

Connectivity

Simultaneous ANT+ and Bluetooth Low Energy (up to 3 BLE connections). Works with Garmin, Wahoo, Hammerhead, Bryton, Sigma, smartwatches, Zwift, TrainerRoad, Strava and the Favero Assioma app for setup and firmware updates.

Technical specifications

• Type: MTB / gravel pedals with single-sided (left) power meter
• Cleat compatibility: 100% SPD® (Favero SPD cleats included)
• Accuracy: ±1% (IAV Power system)
• Weight: 199 g for the sensor pedal, 198 g for the right pedal
• Stack height: 11.2 mm (17.2 mm including Shimano cleat)
• Pedal body: 6061-T6 aluminium, replaceable
• Clipping mechanism: chromoly, hardness up to 800 HV
• Waterproofing: IP67
• Usage category: category 3 (drops up to 61 cm)
• Battery: rechargeable lithium-ion sealed in the spindle
• Battery life: up to 160 h — 15 min fast charge = 15 h riding
• Charging: magnetic connector
• Integrated 3-axis gyroscope and cadence sensor
• Connectivity: ANT+ and Bluetooth Low Energy (up to 3 simultaneous BLE)
• Compatible with round and oval chainrings, all cranks and guards
• Auto-calibration and Active Temperature Compensation (ATC)
• Data: power, cadence, PCO, power phase, rider position
• Upgradeable to dual-sided with the Assioma PRO MX-UP kit
• Modular design: PRO spindle shared between road (RL/RS) and MTB (MX)
• Warranty: 2 years — made in Italy
• Manufacturer reference: 773-10-01

In the box

• Pair of Assioma PRO MX-1 pedals (left-side sensor)
• Favero SPD® cleats with screws and washers
• Magnetic connector and charging cable
• Greasing kit
• Warranty and safety manual, welcome booklet

Ideal for mountain bikers and gravel riders who want to start training with power without a race-team budget, riders already on SPD cleats, and anyone who wants a platform that can grow into dual-sided measurement.

Available in store and to order. Our mechanics handle fitting, pairing with your head unit and first calibration in our Liège and Brussels workshops.