ROTOR INpower DM MTB Power MeterMarch 16, 2023
$755.00 – $790.00
ROTOR’s INpower MTB now with DM rings and Bluetooth SMART
ROTOR INpower DM MTB Power Meter
The ROTOR INpower DM MTB Power Meter measures left leg power using two sets of opposing strain gauges in the axle. The strain gauges are able to measure power, cadence, torque effectiveness and pedal smoothness. Specifically designed for off road use, all of the electronics are located inside the water-proof, sealed axle. This makes the INpower DM MTB super durable and able to withstand the muddiest, harshest conditions.
However unlike the previous generation power meter, the new INpower DM MTB uses 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 INpower DM MTB has ANT+ and Bluetooth SMART functionality, is powered by a AA battery with 300-hour battery life and features +/- 1.0% accuracy.
The ROTOR INpower DM MTB features ROTOR’s 30 mm UBB (Universal Bottom Bracket) design. This makes the power meter compatible with almost all standard frames when used with the correct spacers. In addition, when used with a Q-Ring, ROTOR’s OCP (Optimum Chainring Position) technology allows you to identify your OCP in order to fine-tune your Q-Rings for optimized pedaling performance and efficiency.
Key Product Details
This power meter fits 30 MM MTB bottom brackets and is compatible with ROTOR Direct Mount Chainrings. See Compatibility tab for more information.
This ROTOR power meter measures left leg power and doubles the value to account for both legs (assumes both legs are generating the same force).
Accurate to within +/- 1.0%, 300 hours of battery life, uses AA batteries, ANT+ and Bluetooth compatible, 2-year warranty. See Specs tab for more information.
Advice From Our Staff:
The advantages to this power meter are it’s relatively affordable (as far as ROTOR power meters go), the aluminum crank arms are light and stiff and it’s easy to run oval rings. The drawback is that it only measures left leg power, whereas most power meter cranksets measure power from both legs.
Options For This Power Meter
The ROTOR INpower MTB Power Meter is available in the following configurations:
- Crank Length: 165 mm | 170 mm | 175 mm
- Chainring Size: 28 | 30 | 32 | 34 | 36 | No chainrings (if you already own them)
- Chainring Shape: Round | Q-Ring (Oval) | No chainrings (if you already own them)
Please note – the ROTOR INpower MTB is only compatible with ROTOR Direct Mount MTB Chainrings.
Other Versions to Consider
2INpower Version: While the INpower you are viewing on this page measures power from just the left leg, we also have the ROTOR 2INpower MTB Crankset Power Meter. This is a more expensive version however it measures power from both legs.
Chainrings: The ROTOR INpower MTB is compatible with ROTOR Direct Mount MTB chainrings, which can be purchased on this page along with the power meter.
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 chaining spindle sizes, you will need to replace your bottom bracket.
ROTOR INpower DM MTB Specs
|Name||INpower DM MTB Power Meter|
|Location of Power Measurement||Axle|
|Left or Both Legs Measured||Left|
|Independent Left/Right Measurement||NA|
|Installation||More involved (60 min. estimated)|
|Speeds||9-, 10-, 11- and 12-speed|
|Crank Arm Material||Aluminum|
|Communication Protocol||ANT+ and Bluetooth SMART|
|Claimed Accuracy||+/- 1.0%|
|Active Temperature Compensation||No|
|Weight||635 grams (170 mm, 34T)|
|Battery Life||300 hours|
|Method of Cadence Measurement||Accelerometer|
|Spindle Size||30 mm|
|Q Factor||169 mm boost|
In the Box
- ROTOR INpower DM MTB
- DM Chainrings (if purchased)
- 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.
- 10 mm Allen key
- 8 mm Allen key
- ROTOR DM lockring tool (supplied)
Common Questions and Answers
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.
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