Sea Otter Video: Rotor Bike Components Rex cranks and QX1 chainring 2014

Components Sea Otter Classic Video

Rotor Bike Components Research Specialist Christie O’Hara steps into the Mtbr booth to showcase the Rex mountain bike line. Rotor’s entire mountain bike line has been redesigned for 2014 with new graphics and shapes, with the goal of lightening up the line and enhancing durability.

On deck are the Rex 1 and Rex 2 cranks as well as the New QX1 oval chainring.  The Rex 1 is a 30mm crank composed of a new 7055 alloy material and weighs in at 489g while the Rex 2 is a slightly more affordable version, still features a 30mm spindle, and is available as a 1x or 2x. The new QX1 narrow-wide oval chainring is available in 28-36t and can be replaced without removing the crank. For more information visit

About the author: Emily Neuman

A veteran of the both the bike and hospitality industries contributor Emily Neuman can spin a tale, then mix a drink to go along with it. Though she only found Cycling (hey, some people capitalize god) in the past few years, her quiver of bicycles reflects an enthusiastic gusto for the sport/culture/funness. Road, mountain, cross, commute—it doesn’t matter. Emily on a bike is a rolling smile that emits squeaks of joy and excitement.

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  • Sun says:

    Do these oval front sprockets really offer any advantages? Thanks.

  • Bikethrasher says:

    I’ve been running Rotor Rings for 3 years now. They not only do they smooth out your pedaling. They are easier on your Knees and extend the range of your gearing.

  • Sun says:

    I’m going to order one today. Any recommendations on where to get them at? My LBS pretty much tried to sway me away from them so I’d prefer to buy them online at this point.

  • Sun says:

    Turns out they do not have a product (yet) available for SRAM GXP cranks. 🙁

  • RoDe says:

    Have been using these on my MTB for years. Got rid of my aching knees that way.

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