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Product information "SRM Training System Rotor 3D+"
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 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 chainrings.
Technical data for the SRM ROTOR 3D+ Powermeter
Crank: Rotor 3D + standard crank lengths from 170 to 175mm
Materials: aluminium crank set, aluminum BB Spindle
Chainrings: Standard: 39/53 BCD 130 mm, Compact: 34/50 BCD 110 mm (no Q-Rings)
Other chainring combinations may be available upon request.
Weight: 839 g with SRM power meter, 3D + cranks, chainrings and bottom bracket (92 g)
with a spacer frame for BB-right: 847 g
with two spacers for BB-30 frame: 853 g
Decor: Standard 19 - Rotor
Bottom Bracket: rotor BB1 steel (weight 92 g) not included
Strain gauges: 8
Cadence Range: 30 - 255 rpm
Wattage Range: 0-4096 watts
Wireless Protocol: wireless ANT + Sport
Accuracy: + / - 1%
Battery life: about 1,900 hours of use
Q-factor: 147 mm
3 year global warranty