Free 2-Day Shipping on Orders Over $50
1-888-276-7130
Free 2-Day Shipping on Orders over $50–Order by Dec 20th
  • Rotor REX 1.2 Cranks
  • Rotor REX 1.2 Cranks 3/4 Front
  • Rotor REX 1.2 Cranks Detail
  • OptionsRotor -
  • Detail Images - 3/4 Front
  •  - Detail
RotorREX 1.2 Cranks
$470.00

Item # RTR000H

Select options
  • Cancel
  • Select options
  • Black, 170mm ($470.00)
  • Black, 172mm ($470.00)
  • Black, 175mm ($470.00)
  • 100% Guaranteed Returns
  • Free 2-Day Shipping
    on orders over $50

Item # RTR000H
Description

Giving you every advantage.

"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.

Tech SpecsWeight
Tech Specs
Arm Material
7055 Alloy
Arm Length
170 mm, 172.5 mm, 175 mm
Rings
[not included]
Spindle
30mm, 24mm
Compatible Components
Rotor QX1/No-QX1 rings
Recommended Use
mountain biking
Manufacturer Warranty
1 year
Weight

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead

Grams

Oz

Black, 170mm
n/a
n/a
Black, 172mm
548g
19.33oz
Black, 175mm
n/a
n/a

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[without BB] 505 g

Reviews & Community

REVIEWS

Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?

Familiarity:

Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel