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  • RockShox - RS-1 ACS Solo Air 100 Fork - 27.5in - 2017 - Gloss Black/Red

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  • RockShox - RS-1 ACS Solo Air 100 Fork - 27.5in - 2017 - Gloss Black/Red

RockShox RS-1 ACS Solo Air 100 Fork - 27.5in - 2017

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sale $839.25 $1,865.00

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    • Gloss Black/Red, 1.5T, 15mm Predictive Steering
      sale $839.25

    1 Review


    The secret sauce.

    At first glance, it looks like somebody at RockShox wasn’t paying attention when they put the RS-1 ACS Solo Air 100 Fork together. The legs slide down over the stanchions, the axle is weird, and the dropouts are, well, weirder. It all seems like a mistake, until you realize that this design keeps the oil suspended above the bushings for better lubrication and smoother compression, boosts the stiffness, and makes the RS-1 ACS one of the best XC forks on the market.

    How, exactly? Well, the steerer tube, crown, and legs are all carbon, so stiffness is a given. The stanchions are coated with Fast Black for buttery smoothness, and the axle is basically a two-part job for insane stiffness—there’s a traditional 15mm axle, and a 27mm Torque Tube axle that locks the thru-axle, fork, and wheel into a super-stiff single piece, so you can rail corners with no flex to speak of. There’s a ton of adjustability built into the fork, too, and it comes with an XLoc remote that lets you lock things out without having to slow down. Of course, you need a special wheel and hub to make it all work. RockShox calls this system “Predictive Steering”, and DT Swiss is the only other company to make compatible wheels.

    • Item #RSX001Q

    Tech Specs

    100 mm
    Stanchion Material
    Lower Material
    carbon fiber
    Crown Material
    carbon fiber
    Wheel Size
    27.5 in
    Stanchion Diameter
    32 mm
    Spring Type
    Solo Air
    XLoc, Beginning Stroke rebound
    15 mm Maxle Ultimate
    Max Rotor Size
    200 mm
    Brake Compatibility
    Compatible Components
    Predictive Steering hub
    Claimed Weight
    1646 g
    Manufacturer Warranty
    2 years

    Tech Specs

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    Smooth Like Butter

    • Familiarity: I've put it through the wringer

    If you can't decide between a sid or rs-1, then choose an rs-1. This fork is great. With the fork inverted it keeps the stanchions proper lubricated. The fork feels great and is smooth. Only downside is that your wheel needs a predictive steering hub. It does however stiffen up the front of your bike and improve handling.