Skip to main content

ROTOR 2INpower SL Road Power Meter

Josh Matthew June 27, 2024


Lighter and more affordable than ever and with dual-leg power +/- 1.5% accuracy!


Clear selection

ROTOR 2INpower SL Road Power Meter

The all-new ROTOR 2INpower SL Road Power Meter is lighter and more affordable than ever! Weighing just 530 grams (170 mm) the 2INpower Super Light Road is 15% lighter than the previous model and is now the lightest dual-sided power meter on the market. Using ROTOR’s Trinity Drilling System along with aeronautical grade 7075-T6 aluminum, the crankset is not only lightweight, but also ultra-stiff. This means better power transfer and increased efficiency.

The 2INpower also features dual-leg power measurement with two sets of power sensors. This allows you to see total power as well as left vs. right leg power balance. In addition, the power meter is accurate to +/- 1.5% making it one of the most accurate power meters available. It also features automatic calibrations (no rider offset required).

The ROTOR power meter comes with a user-friendly app that provides personalized data and detailed graphs for in-depth analysis and training along with dual ANT+ and Bluetooth connectivity. The built-in rechargeable battery charges in just 3 hours and provides up to 250 hours of life.


Key Product Details


This power meter fits 30 MM road bottom brackets and is compatible with a wide selection of ROTOR chainrings. See Compatibility tab for more information.

Power Measurement:

This ROTOR power meter has two power sensors (bottom bracket and right crank arm) and measures power from both legs. It is also able to measure your left vs. right leg power.

Key Features:

Dual-leg power measurement, lightweight and stiff, works with a wide selection of ROTOR chainrings, can measure left vs. right leg power, accurate to within +/- 1.5%, 250 hours of battery life, rechargeable battery, ANT+ and Bluetooth compatible, 2-year warranty. See Specs tab for more information.

Advice From Our Staff:

This 2INpower SL is pricey and we understand it’s not in everyone’s budget, but it’s a wonderful power meter. It measures dual-leg power, is highly accurate and is light and stiff. It can also be used with a side selection of ROTOR chainrings from 1x to 2x, round to oval, standard to aero and more.


Options For This Power Meter

The ROTOR 2INpower SL Road Power Meter is available in the following configurations:

  • Crank arm lengths:  155 mm | 165 mm | 170 mm | 172.5 mm | 175 mm



ROTOR offers several different chainrings that fit this power meter…too many for us to list in the menus above! So on the Checkout Page, just tell us what chainrings to include in your order. No need to add the chainrings you want to your cart – the cost is included with the power meter here! Please view all available ROTOR power meter chainrings.


Other Versions to Consider

INpower Version: While the 2INpower you are viewing on this page measures power from both legs, we also have the more affordable ROTOR INpower V3 Road Power Meter which is a complete crankset but measures left leg power only.


Chainrings: The ROTOR 2INpower SL is compatible with a wide selection of ROTOR chainrings. They are designed to work with 9-, 10-, 11-, 12-, and 13-speed groupsets.

Bottom Bracket: This power meter fits 30 MM bottom brackets. If you currently have a 30 MM crankset on your bike, you should be able to re-use your existing bottom bracket. However, if you are changing spindle sizes, you will need to replace your bottom bracket.

ROTOR 2INpower SL Road Specs

NameROTOR 2INpower SL Power Meter
Bike TypeRoad
Location of Power MeasurementAxle / bottom bracket (L) and crank arm (R)
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementYes
InstallationMore involved (60 min. estimated)
Crank Arm MaterialAluminum
Communication ProtocolANT+ and Bluetooth SMART
Claimed Accuracy+/- 1.5%
Active Temperature CompensationNo
Weight530 grams (170 mm)
Battery TypeRechargeable Li-ion
Battery Life250 hours
Method of Cadence MeasurementAccelerometer
BCDDirect Mount
Spindle Size30 mm
Q Factor147.5 mm
Warranty2 years

In the Box

  • ROTOR 2INpower SL Road Power Meter
  • Chainrings
  • USB cable for charging
  • Users manual

Tools Needed for Installation

You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.

  • 8 mm Allen key
  • 5 mm Allen key
  • ROTOR DM lockring tool (supplied)

Common Questions and Answers

Question: Can I use the ROTOR 2INpower with a SRAM AXS groupset?

Question: Is the ROTOR 2INpower SL compatible with 12-speed drivetrains?

Question: How do I determine what length my current cranks are so I can make sure I get the same size?

  • Your crank arm length should be printed or stamped on the inside of the left crank arm, usually near the pedal end.

End of crank arm showing crank arm length


There are no reviews yet.

Be the first to review “ROTOR 2INpower SL Road Power Meter”

The maximum upload file size: 5 MB. You can upload: image, audio, video, document, spreadsheet, interactive, text, archive, code, other. Links to YouTube, Facebook, Twitter and other services inserted in the comment text will be automatically embedded. Drop file here



Shopping Cart