SRM PowerMeter Rotor 3D

Incredible stiffness to weight ratio

The Trinity Drilling Process creates an ultra-light CNC machined crank set

The SRM-Rotor PowerMeter is offered in two different crank options, the 3D and 3D+. Both cranks use the Trinity Drilling Process to create three holes drilled end to end, length-wise, through a solid piece of aluminum. This allows for an extremely low weight as well as an optimized weight to rigidity ratio. The Rotor 3D+ crank set is also the choice of the Garmin Barracuda Professional Cycling Team. The SRM-Rotor PowerMeter allows for more compatibility between frames and gives the same precision and durability found throughout the SRM Product line. The Rotor 3D+ model SRM PowerMeter allows for direct integration into BBRite and BB30/PF30 framesets. The Rotor 3D models allow for compatibility with standard BSA as well as press-fit BB90 frames.

3D Crank: Available in both 130mm BCD (53/39) and 110mm BCD (50/34).

*Rotor Q-Rings are available as an option for additional cost. All Rotor SRM PowerMeters come standard with Non-Q Rings.

 

 

Rotor 3D Crankset

Trinity Drilling Process creates a sublimely stiff and industrial looking crankset!

Rotor 3D Crankset

Seamless integration into any frame-set with Rotor's 24mm Steel Bottom Bracket Spindle.

Power Measurement redefined

SRM stands for experience, durability and dependability

Experience

Powered by experience

Each SRM PowerMeter and PowerControl head-unit are made one at a time, by hand. Our production facilities are located in Julich, Germany and Colorado Springs USA. Every step of production is carried out by highly trained engineers and technicians who have a passion for quality craftsmanship.

Dependability

Dependability you can count on

A three-year global-warranty protects against defects and backs up your investments. Add on the industry's leading accuracy and data reception rate for a truly unrivaled power measurement device.

Race proven durability

Accuracy is everything

SRM uses a 144 point calibration protocol against a known mass measured to the exact gram. With exacting calibration and our auto-offset feature, the resulting power measurement of the SRM has error of less than 1%. The scientific community has been publishing peer reviewed research for over 20 years using the SRM PowerMeter as the bench mark for measuring power in physiological and human performance research studies. We don't claim anything, our accuracy is proven.

Scientifically Proven

Race proven durability

SRM's are designed to take whatever you can throw at them. From freezing temperatures, to boiling heat, SRM's are  designed to handle temperature compensation while maintaining accuracy with our "Auto" offset feature. Each SRM is designed to be sealed against water, snow, mud, sand, and cleaning solvents. SRM's are designed to work. Period.

Decors

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