SRM PM9 Origin Road Carbon Power Meter

Dual-Leg Power Measurement

The SRM power meter measures power at the crank spider. This means it measures both left and right leg power. The PM9 also features left/right power balance, which shows power from each leg individually.

Precision Accuracy

SRM uses a 144 point calibration protocol against a known mass measured to the exact gram. With precise calibration and its Auto-Offset feature, the Origin is accurate to +/- 1.0%.

Light and Stiff

The SRM Origin offers superior stiffness to weight ratio. The entire power meter weighs close to 600 grams when ordered with the LOOK-SRM Carbon arms.

Compatibility and Convenience

By simply rotating the Trilobe pedal inserts, the Origin (when purchased with the LOOK-SRM crank arms) offers three crank arm lengths: 170, 172.5 and 175 mm.

Options

Crank Arm: LOOK-SRM Carbon | SRM Carbon Composite

• LOOK-SRM Carbon (170/172.5/175) – These are the lightest crank arms offered (260 grams). The crank arm functions in three lengths, 170 mm, 172.5 mm and 175 mm, 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.

Chainrings: If you would like to purchase this power meter without chainrings, select one of the following options in the dropdown menu above:

• None – Shimano DURA-ACE 9100 Lid. If you wish to use your own Shimano DA 9100 chainrings.
• None – Shimano DURA-ACE 9200 Lid. If you wish to use your own Shimano DA 9200 chainrings.
• None – Flat Lid. If you wish to use your own 110×4 asymmetric chainrings (non-Shimano chainrings).

If you would like to purchase the power meter with chainrings, available chainrings are:

• SRM Aluminum Chainrings (50/34 | 52/36 | 53/39) – These are great chainrings at an affordable price.
• Carbon-Ti (50/34 | 52/36 | 54/40) – Full carbon chainrings, when only the finest will do!

Note – we also have SRM Origin Aluminum Campagnolo Chainrings available.

Spindle: 24 MM | 30 MM

• 24 MM – For use with 24 mm Shimano bottom brackets.
• 30 MM – For use with 30 mm bottom brackets.

PC8 Bundle: While not listed in the dropdown menus above, you can bundle the SRM PM9 Origin Power Meter 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.

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.

• 3 mm Allen key
• 10 mm Allen key