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The Thule Ascent 1700 roof box combines aerodynamic styling, big-time load capacity and rugged construction—with no assembly required!

  • Features

    • New Quick Grip™ mounting system comes pre-installed so you'll be on the road in seconds
    • Quick Grip mounts attach with a single, one-handed motion that locks the clamp into place
    • Mounts to most factory-installed racks and after-market systems (see Fit List)
    • Central locking, One Key System™ features built-in safety feature means the key can only be removed when the box is fully closed
    • Dual-side openings allow you to access gear from either side of the box
    • Rugged construction with impact-resistant ABS plastic
    • Holds six to eight pairs of skis

    Made in USA.

    View all Thule Cargo Roof Boxes
  • Technical Specs

    Best Use


    Box Opening

    Dual Side

    Gear Capacity (L)

    481.4 liter

    Gear Capacity (cu. in.)

    29,376 cubic inches

    Ski Load Capacity

    6 - 8 pairs

    Snowboard Load Capacity

    4 - 6 boards

    Width (in.)

    31.5 inches

    Height (in.)

    15.7 inches


    40 pounds

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