Check the listing for details. SRM PM9 Shimano MTB Power Meter. Color: Black, Condition: New. Listed at 1299.00 USD. SRM PM9 Shimano MTB Power MeterIf you are looking for the ultimate power meter for your Shimano MTB crankset, look no further! The SRM PM9 Shimano MTB Power Meter brings SRM’s world–renowned power measurement to your Shimano direct mount crankset. Completely sealed from the elements, the SRM power meter can be used in the nastiest, muddiest conditions without fail. The power meter is accurate to 1.0%, features a rechargeable battery and is compatible with 104 BCD chainrings. Key Product DetailsCompatibility:This SRM Shimano power meter is compatible with Shimano MTB direct mount cranksets using a 1x chainring. This includes the M9100, MT900-1, M8100, M7100, M6100 and MT610. Regarding chainrings, it requires a 104 BCD 4-bolt MTB chainring (which is different than the direct mount chainrings found on many Shimano MTB cranksets). If you do not already have a 104 BCD 4-bolt chainring, we have many you can choose from.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%, 100 hours of battery life, rechargeable battery, left/right power balance, ANT+ and Bluetooth compatibility.Advice From Our Staff:We really like this SRM Shimano MTB power meter. It measures power from both legs, is accurate and reliable. Having said that, it competes with our power2max Shimano MTB power meters which are similar power meters, but are a bit more affordable. If you are an SRM fan, you’ll like this unit. Otherwise, you might give the power2max a try (also a great unit) and you will save some money. CompatibilityCrankset: The SRM Power Meter for Shimano is compatible with Shimano MTB direct mount cranksets such as the M9100 series, MT900-1, M8100 series, M7100 series, M6100 series, MT611-1 and MT610.Chainrings: This power meter requires a 104 BCD 4-bolt MTB chainring (which is different than the direct mount chainrings found on many Shimano MTB cranksets). If you do not already have a 4-bolt chainring, we offer many you can choose from.If you purchase a new chainring with your power meter, we will bolt it on to your power meter before shipping, which will make installation that much easier when you get it. In the BoxSRM PM9 Power MeterSRM USB Charger Cable SpecsNameSRM Shimano MTB Power MeterBike TypeMTBLocation of Power MeasurementSpiderLeft or Both Legs MeasuredBothIndependent Left/Right MeasurementYes - Power BalanceInstallationMore involved (60 min. estimated)Chainring Configuration1XSpeeds11- or 12-speedChainline SpacingBoost and StandardCommunication ProtocolANT+ and Bluetooth SMARTClaimed Accuracy+/- 1.0%Active Temperature CompensationYesWeight114 gramsBattery TypeRechargeableBattery Life100 hoursMethod of Cadence MeasurementAccelerometerBCD104 mm 4-boltQ 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.