SRM X-Power SINGLE Road Pedals

SRM X-Power Road is the answer for everyone who seeks class-leading measurement accuracy, maximum flexibility, and seamless integration in his PowerMeter Pedals. Thanks to the electronics being housed inside the pedal spindle, X-Power pedals can achieve an unmatched level of integration that offers a Stack-Height and Q-Factor on the same level as a standard SPD SL compatible Pedal. Using SPD SL bindings, the X-Power design follows a minimalist approach with the best functionality for road cycling.

The SRM X-Power is available with dual or single leg power measurement. Some cranks (e.g. SRAM or 3T) are very thin and expose the pedal threads and end cap. If you use a crank that has less than 13 mm of threading, please choose the SHORT SPINDLE VERSION.

The SRM X-Power SINGLE pedals have a rechargeable battery and offer a measurement accuracy of ± 2%. The pedals are manufactured by SRM in Jülich near Cologne in Germany.

Highlights and Downsides

• rechargeable battery (30h operating time)
• integrated cadence measurement
• Shimano SPD SL compatible
• low weight (280g for both pedals)
• automatic temperature compensation
• easy to swap between bikes
• works with many bike computers and smartphones (ANT+ & Bluetooth)

• single sided measurement. So no balance is shown and in case of a musculare dysbalance the measurement can be inaccurate
• in a crash, the bike usually lands on the pedal

Compatible bike computers and smartphones

ANT+ capable bike computers (Garmin, Wahoo, O-Synce, Sigma, SRM, etc.) work without problems with the SRM X-Power . Since the data transmission of the SRM X-Power also takes place via Bluetooth Smart, the powermeter can also be paired with smartphones.

Rechargeable battery

The batteries have an operating time of 30 hours and are rechargeable via a magnetic plug. This means that there is no opening in the housing of the electronics and the pedals have no battery cover (no wear, no water entry).

Construction and design

The complete electronics including battery is installed in the pedal axle and thus protected from external influences such as moisture and dirt. There is no opening in the housing of the electronics and the pedals have no battery cover (no wear, no water entry). The pedal body is made of anodized aluminum. The pedal axle is made of steel. This construction makes the X-Power pedals very robust and durable.

Weight

The pedal set weighs in at 280g including measurement electronics and battery. Thus, the SRM X-Power pedals are in an average range for pedals without a built-in power meter!

Accuracy

We were able to confirm SRM's stated measurement accuracy of ± 2% on our calibrated Cyclus II ergometer.

Setup and firmware updates

Screw the pedals to the crank arms with a normal 15mm pedal-wrench. Then launch the X-Power app (iOS and Android). After the app has found the pedals (rotate pedals to wake them up from standyby), go to "Installation" in the app and follow the steps. The app will guide you through the setup: Set crank arm length, zero calibration and alignment. And you're done! Firmware updates are also installed via the app.

Installation

The installation is very simple - the SRM X-Power pedals are simply screwed to the bike like normal pedals. A real plug 'n play powermeter. This also allows easy switching between different bikes. In addition, the SRM X-Power pedals can also easily be taken on vacation or to the training camp and mounted there on a rental bike. Since the electronics are built into the pedal axle, the assembly is not possible with an Allen key. A 15mm standard pedal wrench is required.

Durability

There is no opening in the housing of the electronics and the pedals have no battery cover (no wear, no entry of water). The pedal body is made of anodized aluminum. The pedal axle is made of steel. At the product launch, the SRM X-Power pedals had a few teething problems and there were problems at SRM with some suppliers. Meanwhile, the problems have been solved and the X-Power pedals are reliable and robust power meter pedals.

Warranty and support

The SRM X-Power pedals come with 2 years warranty. The pedals are produced by SRM in Germany. The German support is very good and customer-oriented. If there is ever a problem, we have a direct line to SRM and can help you quickly.