The RockShox World Cup forks sit like a herd of thoroughbreds chomping at the bit on the front edge of current technology, built for race day speed and heart pumping cross country rides. The RockShox SID XX World Cup Solo Air 100 27. 5in Fork clocks in at a claimed featherweight of just over three pounds. With a tapered carbon fiber steerer tube and crown structure, 15mm thru axle, and carbon fiber Power Bulge providing ample durability and stiffness to tackle the fastest, most technical courses, those weight savings don't come at the cost of survivable speed. The SID XX features an integrated, one piece carbon fiber crown and tapered steerer tube for a super strong and stiff assembly that's significantly lighter than forks with aluminum crowns and steerer tubes. The anodized aluminum upper tubes are printed with sag gradients to guide the settings and get everything dialed in quickly. Adding to the stiffness, Power Bulges on the lower bushings eliminate defomation, increase durability, and facilitate smooth action through the travel. A user friendly 15mm Maxle Lite quick release thru axle holds everything together for a solid ride every time you get on the saddle. The SID XX features RockShox's top end, race ready Motion Control DNA damping system that fights off gravity with external rebound, reducing jarring and providing a controlled, smooth ride across rough trails. The Integrated Dual Flow technology boasts separate circuits for low and high speed compression as well as beginning and ending stroke rebound damping for high riding sensitivity over consecutive bumps and larger impacts. The Solo Air spring features an easy to tune design with a single Schrader valve that controls air adjustment for both chambers. You can fill both the negative and positive chambers at the same time for perfect balance without any additional tuning. The feel of the spring is customizable in a snap with RockShox's Bottomless Tokens that adjust the chamber volume to dial in t...