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ROTOR Bike components has developed a specific oversized axle crankset for multiple BB systems based on its successful (2010) 3D cranks. Being lighter and stiffer than the Titanium 3D this makes this a lightweight full aluminium purebred performance crank weighing just 493 grms for 175mm XC2 Cranks.
The secret of ROTOR's cranks design Endurance.
All rotor cranks are certified to both EN14766 (MTB) and EN14781 (Road) standard.
Let us explain the demanding tesst which ensures the customer a bomb proof product.
Apply repeated Vertical dynamic force of 1800nm alternatively to the pedal spindles of left and right hand cranks at a distance of 65mm from the face of the cranks, repeating for 50,000 cycles with the cranks arms at 45 degs to the horizotal.
This is whilst the chainrings are held confined by a jig to prevent the assembly from rotating.
This test is proving all aspects of crank arms, spider and connections. All this performed at a frequency of 25hz.
Impressive specific stiffness figure of 3D+ over and above the earlier 3D models which are well known in the market for their stiffness to weight ratio. The best choice for the demanding cyclist demanding extreme rigidity but concerned about weight.
Q-Factor XC3 -169mm
Chainline 48.5mm
The secret of ROTOR's cranks design Endurance.
All rotor cranks are certified to both EN14766 (MTB) and EN14781 (Road) standard.
Let us explain the demanding tesst which ensures the customer a bomb proof product.
Apply repeated Vertical dynamic force of 1800nm alternatively to the pedal spindles of left and right hand cranks at a distance of 65mm from the face of the cranks, repeating for 50,000 cycles with the cranks arms at 45 degs to the horizotal.
This is whilst the chainrings are held confined by a jig to prevent the assembly from rotating.
This test is proving all aspects of crank arms, spider and connections. All this performed at a frequency of 25hz.
Impressive specific stiffness figure of 3D+ over and above the earlier 3D models which are well known in the market for their stiffness to weight ratio. The best choice for the demanding cyclist demanding extreme rigidity but concerned about weight.
Q-Factor XC3 -169mm
Chainline 48.5mm
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