P1 and Single-Sided Pedal FAQs

There's no such thing as a stupid question, but there are some that get asked more than others. For those, here are our best answers.

General Pedal FAQs

The PowerTap pedal power meters are available in both single-sided and dual-sided (the P1).

The P1 dual-sided pedals are two separate power meters, which talk to each other. The data is collected by the master pedal (Left), then sent to your head unit. The P1 pedals allow the user to receive detailed left/right leg balance.

The PowerTap P1 and Single-Sided Pedal power meters use AAA batteries. For the P1 pedals, each pedal uses one AAA battery, while the Single-Sided pedals use one AAA battery in the left pedal.

Two AAA lithium batteries are included with the P1 and Single-Sided pedals. For best performance, we recommend using only lithium or rechargeable lithium batteries. Alkaline batteries and/or rechargeable alkaline batteries are not recommended for extended use.

The P1 and Single-Sided power pedals do not have a weight limit.

The electronics have a 2 year global warranty. The bearings, skid, and plate are all wearable items and do not have a warranty.

The stack height of the P1 and Single-Sided Pedal power meters are 14mm, which are about 3-5mm greater than some of the other popular pedal systems on the market.

The P1 and Single-Sided pedals feature a forged aluminum pedal body, which is standard for most pedals.

Basically, there is a fundamental difference in the way the two communication protocols operate. With ANT+ the pedals are connected to each other in a master/slave relationship. The pedal that serves as the master, the left in our case, connects to the display device as well as the slave pedal and does the lion's share of the work.

For BLE (Bluetooth Low Energy or Bluetooth Smart) each pedal is paired individually to the display device and it is up to the display to combine the two power values. If a display device does not have the ability to pair to two individual power sensors (most do not) a user will see ½ power. Unless that display device has some built in smarts to double the value when only one pedal based power meter is connected.

Pedal washers are included with the P1 pedals. If they are misplaced, you can use any standard pedal washer from your local dealer or call our customer support at 800-783-7257 for assistance.

PowerTap single-sided power pedals are not capable of providing advanced pedal metric data. In order to display advanced pedal metric data you must be using dual sided P1 pedals.



Calibration

There is no extra needed calibration when installed.

Yes, just like the PowerTap hub, you can perform a manual zero. We recommend that you perform a manual zero before each ride. The pedals also have active temperature compensation where sensors within the pedal monitor the temperature and adjust the offset accordingly.

First, perform a manual zero and LEDs for indication of potential error. For a full list of LED functionality consult the P1 user guide. If that does not fix the issue, or you see an LED indicating a failure, please call our customer service team to receive a Return Authorization number to send your pedals back to Saris Cycling Group. You will need to send back both pedals.



Cleats

The P1 and Single-Sided bike power meters come with proprietary 6-degree float PowerTap cleats and hardware. We offer a 0-degree float cleat option as an extra accessory.

The P1 and Single-Sided pedals use proprietary, 3-bolt keo-style cleats. 0-degree and 6-degree float options are available.

The release tension on the P1 and Single-Sided pedals can be adjusted. You will need a 2.5mm hex wrench to perform the adjustment. Release tension range is 6 – 20 Nm.



Compatibility

The P1 pedals are not compatible with Garmin's cycling dynamics because it is a private service that is not made available to other manufacturers. However, the P1 pedals are compatible with PowerTap Advanced Pedal Metrics.

Joule GPS+Yes; shows pedal balance, etc. v.26
Joule GPSYes; firmware update v.95
Joule 1.0Yes/No; rider can get accurate power, except:
  • cannot set crank arm length (default crank arm length = 172.5 )
  • does not show L/R pedal balance
Joule 2.0No
Joule 3.0No
Little Yellow CervoNo

Garmin has a wide selection of head units and cycling computers. If you're having an issue connecting your P1 pedals to a Garmin, we recommend either contacting Garmin Support directly for consulting your specific product's support documentation. For many Garmin head units, the P1 pedals must first be paired before the all-important crank length can be set.

Non-round rings are supported perfectly with the P1. We are taking 40 individual angular velocity measurements and subsequently 40 power measurements per pedal stroke. Any acceleration/deceleration within a pedal stroke would be measured. Other systems assume constant angular velocity, which typically reports [higher] power when using non-round rings.



Installation

We recommend you follow the recommended torque guidelines from your crank manufacturer. Pedal installation torque generally ranges from 300-350 in lbs (35-40 Newton-meters).

Installation of the P1 or Single-Sided cycling power metes require an 8mm hex wrench.

No, you do not need to set the installation on the P1 pedals. The P1 pedals learn the position of the axle relative to the crank arm after a few pedal strokes.

Yes, the P1 and Single-Sided pedal power meters and your cycling computer (CPU) need to know your crank arm length to give you accurate readings. It’s possible to set this value anywhere between 110mm and 236.5mm, however common settings for bicycles are typically between 160mm to 180mm. Once the P1 pedals are paired to your CPU please refer to your CPU’s manual for proper instructions on setting this value.

As of the writing of this answer, the Edge 1000 is missing the crank length setting is missing under the sensor detail section. We believe this is a bug in the firmware and are working on a solution. The default setting in the Edge 1000 is 172.5mm. If your crank length happens to be 172.5mm, then you are good to go. If your crank length is not 172.45mm, your power will be off by a percentage based on the difference in crank length. For any issues related to future firmware functionality, we recommend contacting Garmin Support.

To set the crank length for your P1 pedals on a Garmin Forerunner 920XT, you will need to have the 2.5 version of firmware. After version 2.5 Garmin released three other firmware versions: 3.3, 4.2 and 5.2. The option to set crank length in versions 4.2 and 5.2 does not appear for pedal-based power meters that are not Garmin Vector Pedals. If your crank length happens to be 172.5mm, then you are good to go. If your crank length is not 172.5mm, your power will be off by a percentage based on the difference in crank length. For any issues related to future firmware functionality, we recommend contacting Garmin Support.



Troubleshooting

Serviceability will be limited to external wear items like the claw, spring, pedal plate and battery cover o-ring. All other internal wear components must be serviced at PowerTap.

When battery life reaches 20%, the P1 pedals will send a low battery flag to your head unit, which should help prevent complete loss of battery by warning you ahead of time. If the right pedal battery dies, the left pedal will double its output to create a power reading. If the left battery dies, there will be no power reading.

Remove the orange battery cover with a 6mm hex wrench. Remove the old battery if necessary and replace with new battery. Reference the bottom of the pedal for correct battery orientation. Reinstall the battery cover, but do not over tighten.

Note: the single-sided power pedal only has one battery compartment, found on the right pedal as indicated by the orange battery cover.

P1 power meter battery cover

Step 1: You will need to determine if the pedal in question successfully updated the firmware. A pedal that fails to update appropriately will not display any lights and will appear unresponsive. Another indication of this state is that the pedal will not connect under "Virtual Bike" in the PowerTap Mobile App.

Step 2: Do not worry. Your power meter is likely temporarily stuck in pedal purgatory. Follow steps 3-5 below to revive your pedal.

Step 3: Make sure the Bluetooth (BLE) setting on your iOS device is set to "on."

Step 4: Once BLE is activated, go to the "Settings" menu in the PowerTap Mobile App.

Step 5: Instead of tapping "Bike Set-Up," scroll down and select "Recover Firmware." From there your iOS device will pull your pedals out of purgatory and get them up and running again.

First, turn your device's Bluetooth setting to "On." This is indicated with the Bluetooth symbol next to the battery symbol in the upper right-hand corner. When the Bluetooth symbol is grey, it means that there are no devices paired. When the Bluetooth symbol turns white, it means that it is connected to a device.

To connect your power meter to the PowerTap Mobile app, make sure that no other devices are paired to your iOS device. We recommend killing any applications that may connect to the Bluetooth sensor.

 

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