Power Meter Pedals 2026: Four Models Compared
A bike without a power meter means training by feel. Pedals are the fastest way to change that, without swapping the bottom bracket or moving a crank between bikes. This roundup checked what these pedals actually cost in 2026, not what a currency calculator spits out.
Why pedals, not the crank
Pedal threads are the same on practically every bike. That is why a power meter pedal moves from a road bike to a time trial bike in minutes, needing only a flat wrench and a moment to calibrate in the app. A crank or spider based meter needs a matching bottom bracket, and switching bikes sometimes means buying a whole new mount.
For a triathlete who rides both a road bike and a time trial bike, pedals win on convenience. The trade off is a bit more mass on the axle compared with a spider based meter, though that is a difference of tens of grams, not a kilogram.
Every model in this roundup claims ±1% accuracy, so the differences between them come down to weight, power source, cleat compatibility and price, not measurement precision.
When the crank is cheaper
The case for pedals has a cost, and it is worth seeing in real numbers.
Decathlon’s own range runs to crank and spider based power meters, with not a single pedal model among them. The same INPEAK Powercrank-E built for a Shimano 105 crank lists at $369.99 in the US in its single sided version, and the TWiN2 for the same crank at $679 in dual sided form.
Set against the pedals in this roundup, the comparison cuts two ways:
| Measurement | Crank | Pedal |
|---|---|---|
| Single sided | INPEAK Powercrank-E 105, $369.99 | Favero PRO RS-1, $549 |
| Dual sided | INPEAK TWiN2 105, $679 | Favero Assioma Duo, $769 |
At single sided measurement, the crank is markedly cheaper, by close to $180. At dual sided the gap all but closes: the TWiN2 crank and the Assioma Duo pedal land within about $90 of each other, with the crank still on the cheaper side.
Add to that the difference in claimed accuracy. INPEAK states ±2%, while every pedal in this roundup states ±1%.
The takeaway is simple. With one bike and the cheapest way into power measurement as the goal, a single sided crank makes sense. With data from both legs, or a meter that moves between a road bike and a time trial bike, pedals have no real competition.
Two overlooked parameters before you compare prices
Power source splits this field in half. Favero and Wahoo use a built in battery, charged by cable. Garmin Rally runs on replaceable coin cell batteries (CR1/3N, 2L76, or two LR44/SR44 per pedal).
That is not a minor detail, it is two different ways of living with the equipment. A rechargeable battery means remembering to charge before a training block, but nothing extra to buy. Coin cells mean no cables on a trip and a five minute swap mid season, at the cost of buying batteries regularly.
Q-factor, the stance width, is the second overlooked spec. The new PRO RS dropped from 65 mm to 53 mm compared with the older Duo. Twelve millimetres per side is noticeable in hip alignment, and it matters on a time trial bike, where the rider already sits narrow.
1. Budget pick: Favero Assioma Duo
The Duo is the oldest and longest proven model in Favero’s line. It gives dual sided measurement, Look Keo cleats, a 50 hour battery, and IP67 water resistance. The electronics sit in the characteristic pods on the axle. It does not look as sleek as the newer models, though that has no effect on the ride.
In the US it lists at $769, the cheapest entry into dual sided power measurement in this lineup.
Who it suits: someone who wants real data from both legs and does not mind a less refined pedal body. Riders already on Look Keo cleats have a natural fit.
2. Editorial pick: Favero Assioma PRO RS
The PRO RS is a newer design with all the electronics moved into the axle, no pods. The pair weighs 250 g, 55 g less than the Duo, with a single pedal at 123.5 g. It is the lightest set in this roundup, and it looks like an ordinary road pedal.
The battery lasts 60 hours, charged over a magnetic USB-C connector. Rider weight limit is 120 kg. The one gap: cleats are Shimano SPD-SL only, with no Look Keo option.
The dual sided version (PRO RS-2) lists at $789 in the US, the single sided version (PRO RS-1, left leg power doubled) at $549. An upgrade kit from single to dual is a separate purchase.
Who it suits: the pick for most amateurs on SPD-SL. Best balance of weight, battery life and price in this test, plus the narrowest Q-factor.
3. Top shelf: Garmin Rally RS200 / RK210
Rally is the only system here with swappable pedal bodies for different cleats. Buy one axle set, then add SPD-SL, Look Keo, or SPD bodies built for MTB and gravel.
The battery runs about 120 hours with ride dynamics turned on, twice as long as the PRO RS, though these are replaceable batteries, not a rechargeable cell. Water resistance is IPX7.
It lists at $1,099.99 in the US.
Who it suits: someone already in the Garmin ecosystem (Edge, watch, Connect) who wants one axle set across several bikes with different cleats, and prefers swapping batteries to hunting for a cable.
4. For Speedplay feet: Wahoo Powrlink Zero
Riders on Speedplay Zero cleats, popular among triathletes for their wide float range, have exactly one power meter option here. Float adjustment runs 0 to 15 degrees, the battery holds 75 hours, and the dual sided version weighs 277 g (138 g per pedal). Water resistance is IPX7.
The drawback: it measures only left right balance. It lacks the advanced metrics, pedal smoothness and torque effectiveness, that Favero and Garmin provide.
The single sided version lists at $649 in the US, the dual sided version at $849.99.
Who it suits: Speedplay users only, who do not want to change shoes or cleats.
| Model | Cleats | Weight (pair) | Power | US price |
|---|---|---|---|---|
| Favero Assioma Duo | Look Keo | 305 g | rechargeable, 50 h | from $769 |
| Favero Assioma PRO RS | Shimano SPD-SL | 250 g | rechargeable USB-C, 60 h | $789 (dual) |
| Garmin Rally RS200/RK210 | SPD-SL / Look Keo / SPD (swappable) | 314 g | coin cell batteries, about 120 h | $1,099.99 |
| Wahoo Powrlink Zero | Speedplay | 277 g | rechargeable, 75 h | $649 (single) |
What you do with this data on the road
A pedal alone will not make you faster. One number does that: Intensity Factor, the ratio of normalised power for a segment to FTP. An IF of 0.75 means the whole route was ridden at 75% of threshold.
On a 70.3, the target for normalised power is 70 to 78% of FTP, and the exact figure depends on where a rider stands:
| Rider | % FTP over 90 km |
|---|---|
| First time at the distance, or the bike is the weaker discipline | 70-72% |
| Trained age grouper, where most personal bests land | 73-76% |
| High bike volume with run legs to match | 77-78% |
Over the full distance, a well paced ride sits at IF 0.65 to 0.78. Below 0.65, time is left on the course. Above 0.80, the ride is racing the marathon that follows. Most amateurs land between 0.68 and 0.78.
The second number few riders track is Variability Index, normalised power divided by average power. On a flat course, keep it below 1.05. A VI of 1.10 means surging and coasting, and that pattern burns more glycogen than a steady effort at the same normalised power.
One rule sounds obvious and saves more marathons than any piece of equipment: the first hour should feel too easy. If the pace already feels right from the start, it is too hard.
None of these numbers exist without a power meter. With one, all of them do, and that is the only reason the expense is worth it.
Before choosing, check which cleats are already in the shoes. That narrows the list faster than differences in weight or battery, since a change of cleat standard usually means new shoes too. Mounting needs a 15 mm flat wrench and a torque wrench. The torque spec is in the manual for the specific model, since manufacturers list different values.