TRINITY DRILLING SYSTEM - Ultrastable
ROTOR's 3-fold drilled crank arms withstand bending and torsion forces better than classic hollow crank arms. ROTOR crank arms are stiffer than forged products from other suppliers due to our Trinity Drilling system. The figure below shows the triple hole. With this method, the crank arm is drilled 3 times hollow from the axle to the pedal. The result is a box-like grid (similar to a box girder bridge). This makes the crank arms ultra-stable and gives them an excellent stiffness to weight ratio.
UNIVERSAL BOTTOM BRACKETS - Always fits!
The universal inner bearing UBB (Universal Bottom Brackets) is not a standard - it combines all standards. It allows the installation of almost any ROTOR 30mm or 24mm crank in any wheel, regardless of the bottom bracket type. ROTOR's "UBB" Superstandard includes all bottom bracket standards and solutions. That's probably the best word to describe ROTOR's design philosophy. We identify performance problems and get down to solving them. This results in better & optimized products.
ROTOR INPOWER power meter
- 3D30 Aluminium crank handle
- Crank length: 175mm
- 110 BCD