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 Sharp 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 BBRight and BB30/PF30 frame sets. 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).
Weight: 776 g 130 mm BCD 53/39
Weight: 671 g 110 mm BCD 50/34
BCD: 130 or 110 mm
Q-Factor: 147 mm
Wireless: ANT+ Compatible
Battery Life: 1900 hours
Accuracy: < 1.0% error
- PowerMeter Spider 130 or 110 mm
The following can be purchased for an additional charge:
- Drive and Non-Drive Side Rotor 3D Aluminum Crank Arms
- Praxis Round Chain Rings (Rotor Q-Rings Shown Not Included)