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ROTOR REX 2.1 crankset 76mm

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This item is crafted in Spain
  • REX 2.1

    Borrowing its desing from REX1, the forced and CNC´d REX 2 cranks are enhanced by proprietary TDS triple drilling technology to yield the perfect weight-to-stiffness ratio. The REX 2 used ROTOR´s UBB 30 technology, offering a performance upgrade opportunity for almost all mountain bikes on the market - whether they were designed for 30mm cranks or not.

    Short description

    • Weight: REX 2.1 (172.5mm length 514 g) / REX 2.2 - (521g)
    • Sizes: 170/172,5/175mm


    • Chainrings: 1
    • Spindle: 30mm aluminum alloy
    • Q-Factor: 163 mm
    • Chainline: REX 2.1 50.6mm / REX 1.1 Cannondale 56mm / REX 1.2 44.5mm
    • Material: aluminum alloy 7055 100% CNC-machined
    • Compatibility: Bottom Bracket BSA , BB89 , BB92 , PF30 , BBRight , Cannondale F-Si Ai (spider sold separately) , Oval and round chainrings , 9 , 10 and 11 Speed

    User Manual
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    • WITHOUT Chainrings
  • Show all items from ROTORROTOR is a Spanish manufacturer of high-end bicycle components, specializing in chainrings and cranksets. Founded in 1994, the company has a strong reputation in the cycling community for producing some of the most advanced and innovative components available.

    ROTOR's chainrings are known for their unique design, which utilizes a ovalized shape to provide a more uniform distribution of power throughout the pedal stroke. This design has been shown to increase efficiency and reduce stress on the knees, making it a popular choice among cyclists and professional racers alike. ROTOR also offers a range of chainring options, including those designed specifically for road, triathlon, and mountain biking.

    The company's cranksets are similarly renowned, featuring lightweight and strong construction, with an emphasis on stiffness for improved power transfer. ROTOR offers cranksets in a range of lengths and materials, including aluminum and carbon fiber, to suit a variety of riding styles and preferences.

    In addition to its top-of-the-line components, ROTOR is known for its commitment to sustainability and environmentally responsible manufacturing processes. The company uses recycled materials in its products and has implemented a closed-loop production system to minimize waste and reduce its carbon footprint.

    Overall, ROTOR is a highly respected and sought-after brand in the cycling world, known for its cutting-edge design, high-quality materials, and commitment to sustainability. Whether you're a serious cyclist or simply looking to upgrade your ride, ROTOR is a brand worth considering.
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