Rotor 3D Aero Crankset 172.5
Rotor 3D Aero Crankset 172.5



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Rotor 3D24 Aero Cranks (Steel Axle)

Designed to offer exceptional stiffness with improved aerodynamics for faster time trials and bike splits.

Striking Aero spider design with a superlight reinforced structure increases stiffness and gives improved aerodynamics.

Utilizing the Trinity Drilling Process, an extruded aluminium bar is intricately CNC machined at the ROTOR Factory. The result is a unique triple hollow crank arm that enables ROTOR’s engineers to remove the excess aluminium in the core while still maintaining the structural strength of the crank.


Compatible with all 130 BCD chain rings: both Q-Ring and round chain rings. Compatible with all 24mm Shimano-compatible integrated, press fit or external BB systems.

  • Crank lengths: 165, 170, 172.5 & 175mm
  • Weight: 546 g (in 170mm length w/o chain rings & BB)
  • Q-Factor: 147mm
  • Certified to EN 14781 standards

3D Axle is compatible with standard Shimano, FSA etc BB.


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This item is available for International delivery. Read more.

UK orders are sent using Royal Mail Tracked 48, Royal Mail Recorded or Royal Mail letter post for small, light orders and Parcelforce for heavier, bulky orders. Please allow approx 2-3 days for delivery after the order has been despatched. Large and heavy items, e.g turbo trainers and work stands, will be sent by Parcelforce (UK Mainland only). Overseas orders are sent using Royal Mail International Signed For service and Royal Mail Airsure service (where permitting). Heavier items e.g. bicycles are sent using Parcelforce Worldwide. Delivery times will vary depending on destination, customs clearance, local postal service etc. Please allow up to 14 working days for delivery. Postage costs include Insurance for the value of the order. Bicycles sent within the UK are sent by Parcelforce 48 Hour Service.

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