The SRM-Rotor 3D+ PowerMeter is offered in two bolt circle diameters (BCD). 110mm for compact chain rings (50/34) or 130mm for standard chain rings (53/39). Rotor 3D+ 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 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 using a 24mm steel bottom bracket spindle.
This product is sold as a spider only. Crank arms and chainrings are NOT included.
The Wireless PowerMeter - Rotor 3D+ Compact has an accuracy of ±1%. The PowerMeter has a 110mm or 130 mm BCD and a 30mm aluminum axle.
Note: This crankset is compatible with all ROTOR 3D+ Crank Arms. ROTOR 3D+ Cranks are designed for BB30 (68mm width), PF30, Cerverlo BBright and BSA/Italian threaded bottom brackets. Not compatible with BB90 frames! Different bottom bracket options are available from Rotor USA.
- SRM Wireless PowerMeter
- Cadence Magnet
- Crank Arms (sold as options)
- Chain Rings (sold as options)
PowerMeter weight: 698g (including Rotor 3D+ cranks and non-Q Chain Rings) *Crank arms and chain rings not included.
BCD (Bolt circle diameter): 110mm or 130mm
Battery lifetime: 1900 h
Power and Cadence transfer via: Wireless only (ANT+Sport)
***Shown with Rotor Q-Rings (not included). PowerMeters are sold with non-Q Praxis Works Chain Rings***