ROTOR developed the 3D crank to be extremely stiff in order to meet the demands of our elite mountain bike athletes. ROTOR utilizes a special manufacturing process, named the “Trinity Drilling System. An extruded aluminum bar is intricately CNC machined with three drilled holes through the length of the crank. The result is a unique triple hollow crank arm that enables Rotor’s engineers to remove the excess aluminum in the core while still maintaining the structural strength of the crank.
Strengths: Excellent power transfer. I've had the cranks for 2 months and just did my first race with them. When it was time to stomp the pedals under race conditions the crankset responded perfectly.
Weaknesses: None
Bottom Line:
Great product.
Overall Rating:
Value Rating:
Submitted by
Dambala
a Cross Country Rider
from St. Louis, MO
Date Reviewed: January 27, 2012
Strengths: Very stiff, decent weight, narrow Q factor and readily available in different arm lengths. Work very well in all Shimano compatible bottom brackets.
Weaknesses: A little pricey, chain rings for the narrower 2x only set up are 110/74 which are not widely available.
