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ROTOR 2INpower DM Road Power Meter
June 3, 2025Original price was: $1,175.00.$699.00Current price is: $699.00.
Save: $476
State of the art design, direct mount chainrings and dual-sided power
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ROTOR 2INpower DM Road Power Meter
The ROTOR 2INpower DM Road Power Meter makes several improvements over the previous generation ROTOR (the INpower). Perhaps the biggest change is the 2INpower features independent left/right power measurement. ROTOR has added two additional sets of strain gauges to the right crank arm that measure right leg power. Four strain gauges located in the crank axle measure the left leg’s power output (as is the case with the previous INpower version).
In addition, the 2INpower DM features ROTOR’s Direct Mount Chainrings. The Direct Mount rings are machined from a solid block of 7075 aluminum which makes them lighter and stronger than the standard 2x chainring configuration. The ROTOR 2INpower DM has Bluetooth SMART functionality, a built-in rechargeable battery and features +/- 1.5% accuracy.
Key Product Details
Compatibility:
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, 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 is pricey and we understand it’s not in everyone’s budget. However, here’s why we like it: it measures power from both legs, provides left vs. right leg power, the aluminum crank arms are light and stiff and the ROTOR direct mount chainrings further increase stiffness. In addition, this power meter makes it easy to run oval rings if that’s your thing.
Options For This Power Meter
The ROTOR 2INpower DM Power Meter is available in the following configurations:
- Crank arm lengths: 172.5 mm | 175 mm
Other Versions to Consider
INpower Version: While the 2INpower you are viewing on this page measures power from both legs, we also have the ROTOR 2INpower SL Road Power Meter which is a complete crankset but measures left leg power only.
Compatibility
Chainrings: The ROTOR 2INpower 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 DM Road Specs
| Name | ROTOR 2INpower DM Power Meter |
| Bike Type | Road |
| Location of Power Measurement | Axle / bottom bracket (L) and crank arm (R) |
| Left or Both Legs Measured | Both |
| Independent Left/Right Measurement | Yes |
| Installation | More involved (60 min. estimated) |
| Crank Arm Material | Aluminum |
| Communication Protocol | ANT+ and Bluetooth SMART |
| Claimed Accuracy | +/- 1.5% |
| Active Temperature Compensation | No |
| Weight | 775 grams (with chainrings) |
| Battery Type | Rechargeable Li-ion |
| Battery Life | 250 hours |
| Method of Cadence Measurement | Accelerometer |
| BCD | Direct Mount |
| Spindle Size | 30 mm |
| Q Factor | 147.5 mm |
| Warranty | 2 years |
In the Box
- ROTOR 2INpower DM Road Crankset
- 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)
Q&A
Have a question about this? Ask the staff.
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THIS PRODUCT IS FREQUENTLY BOUGHT WITH
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Youngmin (verified owner) –
Great product! The power meter provides accurate data with a quick response. The enough spacers were provided with the product, so I was able to fit the crankset to my old bike (2011 Specialized S-Works Tarmac SL4) without purchasing additional spacer. But the only thing that I do not like is that it is hard to assemble the non-drive side crank arm to the shaft and take it off as opposed to the instruction. But overall, I am happy with the power meter.
Power Meter City –
Awesome! Thank you for this, Youngmin. We hope you will enjoy your new 2INpower power meter! Please let us know if there is anything else we can help you with!
Jose Martinez (verified owner) –
ROTOR POWERMETERS ARE THE BEST… OVAL RINGS MAKES THE RIDE WAY BETTER!!! BUT POWER METER CITY HAS THE BEST CUSTOMER SERVICES, FAST SHIPPING AND GREAT COMMUNICATION. YOU CAN GET ROTORS POWER METERS IN OTHER PLACES BUT I PROMISE… YOU WILL NEVER REGRET BUYING FROM THIS AWESOME AND GREAT COMPANY!!! KEEP MAKING CUSTOMERS EXPERIENCES UNFORGETTABLE!!!
CHEERS,
JM
Power Meter City –
Hi Jose. Thanks for this awesome review! We want to thank you too for being a great customer. We hope you continue to enjoy your ROTOR 2INpower DM Road Power Meter and we are here if there is anything else we can help you with!
Horacio Borrero –
Having a power meter had changed the way on how my training is being done, ROTOR power meter is extreamely accurate and easy to handle, also i have started to use Qrings for the first time and i want to use it in my other bike, configuring the OCP using the app is Easier, rotor powermeter and Qrings are one of the best options to increase your performance on a bike, definitely i recomend this product.
Power Meter City –
Hi Horacio. We’ve been really impressed with the new 2INpower. It’s a great all-around power meter and if you want to run oval rings – it’s arguably the best option. Keep up the good work!