Offering An Unprecedented Combination Of Comfort, Efficiency, And Nimble Handling, The Sirrus X Excels On Pavement, Dirt, And Any Terrain In Between. Smooth, Comfortable, And Efficient: Sirrus X Provides The Smoothest Ride In Its Class. With Bigger, Confidence-inspiring Tires, a Slightly More Upright Riding Position, And a Super Intuitive One-by Drivetrain. Rider-first Engineered: Like All Specialized Performance Bikes, The Geometry Of Each Frame Is Uniquely Crafted. This Means That For Every Frame, Each Tube Size Is Specifically Selected To Achieve The Optimal Balance Of Rigidity, Weight, And Responsiveness To Ensure That No Matter What Size You’Re Riding, You Will Experience The World’s Best Ride. Nimble: Class-leading Light-weight, Exceptional Pedaling Efficiency, And Steering Precision Merge For Confident, Nearly Telepathic Handling Characteristics. Even Lighter Than Sirrus X 2.0, And Faster Thanks To An Added A1 Alloy Fork. Wide-range 1×11 Shimano Cues Drivetrain With a 11-50t Cassette Gives Excellent Range On Any Road. More Powerful Hydraulic Brakes For Enhanced Braking Power And Durability In Tough Conditions. Racktime Rack For Your Favorite Bags And Panniers, And Integrated Drytech Fenders To Keep The Spray Away. Extra-bright Front And Rear Lighting Powered By a Shimano Dynamo Hub To See And Be Seen. Frameset Frame Specialized A1 Premium Aluminum, Fitness Geometry, Butted Tubing, Internal Cable Routing, Flat-mount Disc, Quick-release, Plug + Play Rack/fender Mounts Suspension Fork A1 Premium Aluminum, Flat-mount Disc, Plug + Play Fender Mounts, Low Rider Rack Mounts, Quick-release Brakes Front Brake Tektro Hd-r280, Hydraulic Disc, Resin Pads, Flat-mount, 160mm Rear Brake Tektro Hd-r280, Hydraulic Disc, Resin Pads, Flat-mount, 140mm Drivetrain Shift Levers Shimano Cues Sl-u6000, 11-speed Rear Derailleur ShimanoCues 11-speed W/ Shadow Plus Cassette Shimano, Cs-lg400-11, Cues, 11-speed, 11-50t Crankset Shimano Cues Fc-u6000, Alloy, 170mm Bottom Bracket Shimano Bsa Threaded Chain Kmc Eglide For 11-speed Cues Wheels&Tires Rims 700c Disc Brake, Double-wall Alloy, 22mm Depth, 21mm Internal Width Front Hub Shimano Dynamo, 6-bolt Disc, 100mm Spacing, Quick-release, 32h Rear Hub Alloy, Shimano 11speed Freehub, 6 Bolt Disc, 32h, 10mm Axle, 135mm Spacing Spokes Stainless, 14g Front Tire Pathfinder Wirebead Fast Gravel 700x40c Rear Tire Pathfinder Wirebead Fast Gravel 700x40c Inner Tubes Standard 40mm Sv 700×32-50 Cockpit Handlebars Alloy Mini Rise, 9-degree Backsweep, 15mm Rise, 31.8mm Stem 3d-forged Alloy, 31.8mm, 7-degree Rise Grip Specialized Neutralizer, Body Geometry, Locking Grip Saddle Bridge Sport, Steel Rails, 155/143mm Seatpost Alloy, 12mm Offset, 2-bolt Clamp, 27.2mm Seat Binder Bolt-type, 31.8mm