Check the listing for details. SRM PM9 Origin Track Carbon Power Meter. Color: Black, Condition: New. Listed at 1949.00 USD. SRM PM9 Origin Track Carbon Power MeterThe SRM PM9 Origin Track Carbon Power Meter is the latest offering in SRM’s new Origin power meter line. In addition to be highly accurate, this PM9 version features Left/Right Power Balance, Magnet-less cadence, Automatic temperature compensation, and Bluetooth SMART, among other new features. You can order it with either LOOK carbon crank arms, which are the lightest, stiffest cranks SRM offers, or SRM Composite cranks. It’s not cheap, but it’s one of the nicest track power meter cranksets you can buy! Key Product DetailsCompatibility:This power meter is compatible with 144 BCD 5-bolt track chainrings. It fits 24 MM and 30 MM track bottom brackets, depending on the version ordered.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, carbon crank arms, accurate to within +/- 1.0%, lightweight, rechargeable battery, 100 hours of battery life, left/right power balance, automatic temperature compensation, ANT+ and Bluetooth compatible, 2-year warranty.Advice From Our Staff:It’s not cheap, but this is one of the nicest track power meters you can buy. It is accurate, stiff, lightweight, looks great and it comes with a solid 2-year warranty. In addition, with an option to order it with a 24 mm or 30 mm spindle, you can put it on almost any bike. Options For This Power MeterCrank Arm:LOOK-SRM Carbon | SRM Carbon CompositeLOOK-SRM Carbon – These are the lightest crank arms offered (260 grams). There are two size options: 165/167.5/170 or 170/172.5/175. The crank arms each function in three lengths simply by rotating the Trilobe pedal inserts.SRM Carbon Composite – These carbon arms are still very light and stiff, but they weigh a bit more than the LOOK-SRM Carbon at 344 grams per set. However, they are also more affordable.Spindle:24 MM | 30 MM24 MM – For use with 24 mm track bottom brackets.30 MM – For use with 30 mm track bottom brackets. CompatibilityChainrings: The SRM Origin Track Carbon Power Meter is compatible with 144 BCD 5-bolt track chainrings.Bottom Bracket: This power meter fits 24 MM or 30 MM track bottom brackets, depending on the version ordered. In the BoxSRM Power Meter (spider, crank arms and spindle)SRM USB Charger Cable Specs NameSRM PM9 Origin Track Carbon FiberBike TypeTrackLocation of Power MeasurementSpiderLeft or Both Legs MeasuredBothIndependent Left/Right MeasurementYes - Power BalanceInstallationMore involved (60 min. estimated)Crank Arm MaterialCarbonCommunication ProtocolANT+ and Bluetooth SMARTClaimed Accuracy+/- 1.0%Active Temperature CompensationYesWeightVaries based on configurationBattery TypeRechargeableBattery Life100 hoursMethod of Cadence MeasurementAccelerometerBCD144 5-boltSpindle Size24 mm or 30 mmQ Factor145.5 mmWarranty2 years Why Buy from Power Meter City1. We ship fast! All orders ship on the same day your order is placed!2. Free shipping on all orders in the U.S.3. We are an authorized SRM dealer and this product comes with a full warranty.4. Expert advice and customer service in case you need any help. About our CompanyAt Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service.We have been in business since 2016 and are based in southern California. We are an authorized dealer of every product we sell.