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A tilted SRM PM9 5DEV MTB Black Power Meter Crankset against a white background.

SRM Power Meters

SRM PM9 5DEV MTB Power Meter Crankset

Power Meter City August 11, 2025

Price range: $1,665.00 through $1,685.00

SRM MTB power on a 5DEV MTB crankset. Available in both 30 mm and DUB spindles

Chainrings sold separately

You save 10% when purchasing the power meter and cranks together
Clear selection
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SRM PM9 5DEV MTB Power Meter Crankset

The SRM PM9 5DEV MTB Power Meter Crankset is a feature packed power meter crankset, developed to give mountain bike riders exceptional power meter data and the latest in MTB crankset technology.

SRM has set the standard when it comes to power meters, producing some of the most accurate and reliable power meters available. The upgraded SRM PM9 version features improved accuracy, power balance, automatic temperature compensation and Bluetooth SMART.

5DEV machines the R-SPEC Trail cranks in California from space-grade 7050 aluminum. Developed and manufactured to give riders more crank length options, the 5DEV R-SPEC Trail crank arms are designed to provide additional stiffness and durability against the toughest trails. This crankset is available with both DUB and 30 mm spindle options.

 

Key Product Details

Compatibility:

This SRM power meter crankset is compatible with both DUB and 30 mm bottom brackets depending on the spindle ordered. The power meter works with 104×4 BCD chainrings.  See Compatibility tab for more information.

Power Measurement:

This SRM power meter measures power at the spider and is therefore able to measure power from both legs.

Key Features:

Dual-leg power measurement, accurate to +/- 1.0%, 7050 space-grade billet aluminum crank arms, 100 hours of battery life, rechargeable battery, left/right power balance, ANT+ and Bluetooth compatibility. See Specs tab for more information.

Advice From Our Staff:

The SRM PM9 5DEV MTB Power Meter Crankset is an excellent power meter crankset for XC, trail, and enduro riders who are looking for a durable crankset and a high end power meter. The 5DEV R-Spec Trail crank arms are designed to withstand the toughest trails. The SRM PM9 is an industry leader for accuracy and reliability. Our staff recommends this power meter to riders looking for a high quality, extremely durable MTB power meter crankset.

 

Options for This Power Meter

Crank arms: This power meter comes with 5DEV R-SPEC Trail crank arms. You have the option of the following crank arm sizes:

  •  155 mm | 160 mm | 165 mm | 170 mm

Spindle: The 5DEV R-SPEC Trail crank arms are available in the following spindle diameters:

  • DUB | 30 mm

Colors: The 5DEV R-SPEC Trail crank arms are available in the following colors:

  • Raw | Black

 

Professional Assembly (Optional)SRM Build Checklist

We are happy to professionally assemble your power meter crankset if you select this option when ordering. This ensures your crankset is correctly built and saves you time. Professional assembly includes:

  • Mount the power meter to the cranks and tighten to factory specifications
  • Apply multi-purpose bicycle grease where necessary
  • Install chainrings on the power meter (if chainrings are ordered)

Please note – while we tighten everything to factory specs, it is still your responsibility to routinely check your power meter crankset to make sure all bolts and nuts remain securely fastened.

 

Other Versions to Consider

SRM PM9 Cane Creek MTB Power Meter: If you are looking for a high quality power meter but would like a titanium crankset, we also carry the SRM PM9 Cane Creek MTB Power Meter. This power meter crankset features the same SRM power meter, but uses Cane Creek’s titanium eeWings crankset that provides increased stiffness at a lighter weight.

Compatibility

Chainrings: This power meter requires a 104x4 BCD chainring. If you don't already have a 104x4 BCD chainring, you can shop on our Chainrings page to find the right one for you! If you purchase a new chainring, we will bolt it on to your power meter before shipping, which will make installation that much easier when you get it.

The smallest chainring you can use on a this power meter crankset is a 30T round or 32T oval.

Bottom Bracket: This power meter crankset is compatible with both DUB and 30 mm bottom brackets, depending on the spindle selected.

SRM PM9 5DEV MTB Crankset Specs

NameSRM 5DEV Crankset
Bike TypeMTB
Location of Power MeasurementSpider
Left or Both Legs MeasuredBoth
Independent Left/Right MeasurementYes
InstallationMore involved (60 min. estimated)
Chainring Configuration1X
Chainline SpacingBoost
Communication ProtocolANT+, Bluetooth
Claimed Accuracy+/- 1.0%
Active Temperature CompensationYes
Weight758 grams (170 mm crank arms, 30 mm Spindle)
Battery TypeRechargeable
Battery Life100 hours
Method of Cadence MeasurementAccelerometer
BCD104x4
Q Factor167 mm
5DEV R-Spec Warranty5 Years
SRM PM9 Warranty2 Years

In the Box

  • SRM Power Meter
  • 5DEV R-SPEC Crank Arms and spindle
  • SRM USB Charger Cable

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.

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