GHOST Roket X AL 27.5+ Bike - 2017

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With a maintenance-free gearbox-driven drivetrain, stable geometry and a power-generating front hub, the GHOST Roket X AL 27.5+ bike is for the adventurous bikepacker riding entirely off the grid.

  • Features

    • Pinion C1.12 gearbox-driven drivetrain provides a wide 12-gear range and boasts virtually maintenance-free operation that won't leave you stranded in the backcountry
    • Dynamo power-generating front hub and The Plug USB charging system powers your devices anywhere, anytime
    • Hydroformed aluminum alloy hardtail frame is strong, light and stiff; slack head-tube angle helps aggressive descents and steep seat tube angle is for fast climbs
    • RockShox Yari RC Solo Air fork features 130mm of trail-dominating travel and Boost 110mm hub spacing
    • SRAM Guide R dual-piston hydraulic disc brakes and 200mm front / 180mm rear rotors for powerful, reliable stopping power
    • Kind Shock LEV Integra dropper seatpost provides infinite adjustment on the fly; custom drop length dependent on frame size ensures optimal drop length for each rider
    • Internal cable routing keeps the frame and cockpit area clean and free of cable clutter
    • Race Face ARC 40 rims and Schwalbe 2.8 wide tires offer unlimited traction and the ability to plow through whatever the trail throws at you
    • While 27.5+ x 2.8 wide tires come stock, Roket frame accommodates both 27.5+ and 29er wheel and tire combos with Boost hub spacing (29er wheels not included)
    • REI is proud to be the exclusive U.S. retailer of GHOST brand bikes
    • Pedals not included
    • Specs and images are subject to change

    Imported.

    Free Adjustment Period:
    New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
    View all GHOST Hardtail Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking

    Bikepacking

    Mountain Bike Style

    Cross-country

    Bike Frame Material

    Aluminum

    Frame

    Aluminum

    Bike Suspension

    Front Suspension

    Fork

    RockShox Yari RC Solo Air 130mm Boost

    Fork Travel

    130 millimeters

    Crankset

    Pinion 30

    Bottom Bracket

    Pinion

    Shifters

    Pinion C1.12

    Rear Cogs

    Pinion 26

    Number of Gears

    12

    Brakes

    SRAM Guide R 200/180mm

    Brake Levers

    SRAM Guide R

    Rims

    Race Face ARC 40

    Front Hub

    SP Hub Dynamo 15mm Boost

    Rear Hub

    GHOST Light Boost

    Wheel Size

    27.5+ inches

    Tires

    Schwalbe Nobby Nic / Rocket Ron 2.8

    Tire Width

    2.8 inches

    Handlebar Shape

    Riser Bar

    Handlebar

    GHOST Low Rizer 760mm 35mm

    Stem

    GHOST AS-M04 35mm

    Seat Post

    Kind Shock LEV Integra 31.6mm adjustable SP. internal routing

    Saddle

    SDG Fly

    Pedals

    Sold separately

    Headset

    Acros

    Chain

    KMC X1

    Weight

    32 lbs. 12.8 oz.

    Bike Weight

    Bike weight is based on median size, as sold, or the average of two median sizes.

    Gender

    Unisex

    Internally Geared

    Yes

    Dropper Post

    Yes

  • Size Chart

    S M L
    Height Range 5'1"-5'6" 5'5"-5'11" 5'10"-6'3"
    Reach 405 425 440
    Stack 630 630 630
    Effective Top Tube 586 606 623
    Seat Tube Center-Top 380 420 460
    Standover Height 695 703 735
    Head Tube Length 110 110 120
    Head Tube Angle (degrees) 67 67 67
    Seat Tube Angle (degrees) 74 74 74
    Wheelbase 1131 1151 1170
    Chainstay 435 435 435

    Sizing Notes

    All measurements are stated in millimeters or degrees unless otherwise indicated.

    How we measure bikes

    1. Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
    2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
    3. Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
    4. Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
    5. Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
    6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
    7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
    8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
    9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
    10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
    11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
    12. Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
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