Sirrus X Is Your Ticket To Riding More, And To Places You Never Imagined Possible. It’S A Comfortable, Capable, “Let’S Do Stuff” Kind Of Bike That Will Inspire You To Ride More Than You Ever Have Before. With Bigger, Confidence Inspiring Tires, A Slightly More Upright Riding Position, A Super Intuitive One-By Drivetrain, And Plenty Of Mounts For Racks And Fenders —It’S More Than Just A Solid Partner On Pavement. Sirrus X Is A Dialed Option When It’S Time To Hit Some Gravel. We’Ve Also Equipped Every Sirrus X With Next-Level Comfort From Our Scientifically Tested And Ergonomically Engineered Shared Platform Body Geometry Saddle, Handgrips, And Pedals. We Equipped Sirrus X 4.0 With The Revolutionary Future Shock To Take The Sting Out Of Bumps And Potholes. Here’S To Your Life On Two Wheels. Features: - Future Shock 1.5 Delivers 20mm Of Compliance To Give Maximum Comfort And Control Over The Rough Stuff. - Added Carbon Fork And An A1 Sl Alloy Frame Delivers A Build 1.6lb (.8kg) Lighter Than The 3.0 Model–No Heavy Hybrid Featuring A Mountain Style Suspension Fork Comes Close. - Wide-Range 1x11 Sram Nx Shifting Delivers Precise Shifting For The Long Haul. Main Specs Frame: Specialized A1 Sl Premium Aluminum, Fitness Geometry, Fully Manipulated Butted Tubing, Internal Cable Routing, Flat-Mount Disc, 12x142mm Thru-Axle, Plug + Play Rack/Fender Mounts Fork: Specialized Fact 9r Carbon Monocoque, Flat-Mount Disc, 12x100mm Thru-Axle, Low Rider Mounts, Plug + Play Fender Mounts, Future Shock 1.5 Groupset Rear Derailleur: Sram Nx, 11-Speed Shifters: Sram Nx, 11-Speed Cranks: Forged Aluminum Arms, 2-Piece, 24mm Spindle, Narrow-Wide Aluminum Chainring Chainrings: 40t Cassette: Sram Pg-1130, 11-Speed, 11-42t Front Brake: Tektro Hd-R510, Hydraulic Disc, 160mm Rear Brake: Tektro Hd-R510, Hydraulic Disc, 160mm Chain: Kmc X11, 11-Speed W/ Missing Link™ Bottom Bracket: Threaded Bsa 68mm, 24mm Spindle Wheels Rims: 700c Disc, Double-Wall Alloy, 22mm Depth, 21mm Internal Width, 32h Tires: Pathfinder Sport, 700x38mm Components Handlebar: Alloy Mini Rise, 9-Degree Backsweep, 15mm Rise, 31.8mm Stem: Future Stem, Comp Saddle: Bridge Comp, Hollow Cr-Mo Rails, 155/143mm Seatpost: Alloy, 2-Bolt, 14mm Offset, 27.2mm Pedals: Specialized Body Geometry Fitness, Platform, Plastic