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SRM PM9 Science Track Power Meter
August 11, 2025$2,199.00
SRM track power meter for Shimano Octalink bottom brackets
We offer free shipping on orders in the U.S. of $75 or more.
We also ship fast! In stock orders placed before 4 pm PT almost always ship the same day!
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SRM PM9 Science Track Power Meter
The SRM PM9 Science Track Power Meter is the pinnacle of accurate and consistent power measurement for track cyclists. The Science Track Power Meter is reinforced, allowing it to measure efforts up to 4,000 watts. Due to a combination of angle and torque measurement, it can also account for the smallest changes in pedal stroke. The power meter is accurate to +0.5%, features 100 hours of battery life and has a full 2-year warranty.
Key Product Details
Compatibility:
This power meter is compatible with 144 BCD 5-bolt track chainrings. It fits Shimano Octalink bottom brackets. 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 within +/- 0.5%, rechargeable battery, 100 hours of battery life, left/right power balance, automatic temperature compensation, ANT+ and Bluetooth compatible, 2-year warranty. See Specs tab for more information.
Advice from Our Staff:
This is a popular SRM track power meter. Many track cyclists feel the spindle/chassis/arm connection on this Octalink version is more secure and produces better power transition. In addition, many of the professional German and Dutch sprinters use this SRM without fail – so we know it’s a solid power meter!
Options
Crank Lengths:
These SRM crank arms are available in the following sizes:
- 160 mm | 165 mm | 170 mm | 172.5 mm
PC8 Bundle:
While not listed as an option above, you can bundle your SRM with a SRM PC8 Bike Computer. When you do, you get $249 off the standard price of the PC8. Please contact us if you would like this option.
Compatibility
Chainrings: The Science Track Power Meter is compatible with 144 BCD 5-bolt track chainrings.
Bottom Bracket: The power meter fits Shimano Octalink bottom brackets.
SRM PM9 Science Track Specs
| Name | SRM Science Track Power Meter |
| Bike Type | Track |
| Location of Power Measurement | Spider |
| Left or Both Legs Measured | Both |
| Independent Left/Right Measurement | Yes - Power Balance |
| Installation | More involved (60 min. estimated) |
| Crank Arm Material | Aluminum |
| Communication Protocol | ANT+ and Bluetooth SMART |
| Claimed Accuracy | +/- 0.5% |
| Active Temperature Compensation | Yes |
| Weight | 738 grams |
| Battery Type | Rechargeable |
| Battery Life | 100 hours |
| Method of Cadence Measurement | Accelerometer |
| BCD | 144 5-bolt |
| Spindle Size | NA |
| Q Factor | 141 mm |
| Warranty | 2 years |
In the Box
- SRM Power Meter (spider and crank arms)
- SRM USB Charger Cable
- PC8 Cycling Computer (if purchased)
- Handlebar mount (if SRM PC8 is purchased)
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.
Q&A
Have a question about this? Ask the staff.
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THIS PRODUCT IS FREQUENTLY BOUGHT WITH
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ROTOR Track Chainring Bolts$30.00Set of five ROTOR Track Chainring Bolts -
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ROTOR NoQ Track ChainringPrice range: $150.00 through $170.00Aero, stiff and dependable. The perfect track chainring -
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William –
The staff at Power Meter City have been professional, efficient, and supportive.
Ths SRM Science Track has operated exactly as requured in all operations.
Power Meter City –
Thank you for your kind words, William! We’re glad to hear that our team provided you with professional and efficient support, and it’s great to know that the SRM Science Track is performing perfectly for you. We appreciate your feedback and are here to help with any future needs. Enjoy your rides!
gento suzuki (verified owner) –
It was a kind response.
Thank you for your quick shipment.
Power Meter City –
Hi Gento. Thanks for this kind review – we really appreciate it! Please let us know if there is anything else we can do!
Keith Bruneau (verified owner) –
The SRM is exactly as expected.
The service was greater than expected
Power Meter City –
Hi Keith. We’re really pleased to hear you are enjoying your SRM – a mighty fine track PM indeed! Please let us know if there is anything else that you need!