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Item # RTR0009

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Item # RTR0009

Description

It's the crankset that Hushovd and Haussler throttled across the cobbles and that Sastre used to rocket over Alpine passes -- so you know it's beastly stiff, light, and strong. The Rotor 3D Road Crank is all of that thanks to their Trinity Drilling System, a proprietary process that involves drilling out the center of the aluminum crankarms after they've been extruded into shape. Three parallel bores are made into the length of each arm -- the center bore from the spindle end, and two outer bores from the pedal end, towards the spindle. Through this process, Rotor eliminates excess weight while maintaining the stiffness you want and the strength you need. And the beauty! The CNC machine work and laser etched graphics give Rotor cranks a sinister, industrial appearance.

The Cervelo Test Team worked in conjunction with Rotor's engineers to co-develop the 3D crankarms. In addition to passing the scrutiny of the Test Team, Rotor's Spanish-made components meet all the stringent CEN safety standards. They make their 3D Road Crank with two spindle options. This one uses a 24mm hollow steel spindle that is pressed into the drive side crankarm. On the left side, the crankarm attaches to the splined end of the spindle and is secured with a pinch bolt.

The Rotor 3D Road Crank- Steel Spindle comes with an anodized black finish and is available in three crankarm lengths -- 170, 172.5, and 175mm. Select from two BCD (bolt circle diameters) -- 110mm for road compact or 130mm for standard. Rotor Q-Rings are available in both bolt circles, though the crank is fully compatible with other manufacturer's five-bolt chainrings. The alloy spider attaches to the splined base of the drive-side crankarm and is secured with a lockring. It can be removed and swapped for another with a different BCD should you make a switch from compact to standard gearing or vice-versa. Chainrings are NOT included and may be purchased separately. It can be used with the Rotor SABB or any other 24mm external bearing bottom bracket system built to Shimano's specs. The Rotor 3D Crank has a 147mm Q-Factor.

Tech Specs

Arm Material:
aluminum
Bolt Circle Diameter:
110 mm, 130 mm
Bottom Bracket:
not included
Spindle:
24mm
Recommended Use:
road racing
Manufacturer Warranty:
limited

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