RS-1 ACS Solo Air 100 Fork - 27.5in - 2017
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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.
Details
- Rockshox inverts the classic for this speedy XC fork
- Oil suspends over bushings for better lubrication
- Carbon steer tube, legs, and crown are lightweight carbon
- Super wide 27mm Torque Tube elevates stiffness
- XLoc remote allows you to adjust fork without slowing down
- Compatible only with Predictive Steering wheels
- Item #RSX001Q
- Travel
- 100 mm
- Stanchion Material
- aluminum
- Lower Material
- carbon fiber
- Crown Material
- carbon fiber
- Wheel Size
- 27.5 in
- Stanchion Diameter
- 32 mm
- Spring Type
- Solo Air
- Damper
- Accelerator
- Adjustability
- XLoc, Beginning Stroke rebound
- Lockout
- yes
- Axle
- 15 mm Maxle Ultimate
- Max Rotor Size
- 200 mm
- Brake Compatibility
- disc
- Compatible Components
- Predictive Steering hub
- Claimed Weight
- 1646g
- Manufacturer Warranty
- 2 years
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