REX is the designation given to Rotor's new line of mountain bike cranksets. Using the same technology as its lightweight aluminum cranks, they are setting new standards in strength-to-weight ratios. The REX 1. 2 is its double ring crankset that will have you powering up and down your local trail. Use it with Rotor's Q-rings for an even greater advantage over the competition. The REX cranks use Rotor's proprietary Trinity Drilling System (TDS). This is a method of hollowing out the cranks, which reduces weight and maximizes stiffness. Unlike traditional hollow crankset design, the Trinity Drilling System drills three channels from the pedal to the spindle. While these holes remove excess material, they also leave behind two thin walls, making them stiffer than the design of a single hollow chamber. Ultimately, the design is similar to that of a box-truss bridge. The arms are constructed using a new 7055 alloy, which is both lighter and more durable than the more often used 7075. UBB30 & UBB24 axles ensure maximum frame compatibility. Without the bottom bracket they weigh in at roughly 505grams. The Q-factor is 163. The Rotor REX 1. 2 Cranks are available in sizes 170mm, 172. 5mm, and 175mm. Please note the REX 1. 2 does not include chainrings.
Options, sizes, colors available on Backcountry
Rotor REX 1.2 Cranks
ships and sold by Backcountry
Price subject to change
*Shipping and Returns: Some exclusions apply, see cart on Backcountry for details
US-Parks.com has partnered with Backcountry to offer the best outdoor gear for your outdoors adventure
Rising above a scene rich with extraordinary wildlife, pristine lakes, and alpine terrain, the Teton Range stands monument to the people who fought to protect it. These are mountains of the imagination. Mountains that led to the creation of Grand Teton National Park where you can explore over two hundred miles of trails, float the Snake River or enjoy the serenity of this remarkable place.
The pika is a close relative of the rabbits and hares, with two upper incisors on each side of the jaw, one behind the other. Being rock-gray in color, pikas are seldom seen until their shrill, metallic call reveals their presence.