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Sirrus X 4.0
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.
Chainrings
40T
Shift Levers
Shimano Deore M5100, 11-speed
Crankset
Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide Aluminum chainring
Rear Derailleur
Shimano Deore M5100, SGS, 11-speed
Cassette
Shimano Deore M5100, 11-speed, 11-42t
Bottom Bracket
Threaded BSA 68mm, 24mm spindle
Chain
KMC X11, 11-speed w/ Missing Link™
Inner Tubes
Presta, 48mm valve
Rear Hub
Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x142mm spacing, 28H
Rims
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Front Hub
Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x100mm spacing, 24H
Front Tire
Pathfinder Sport, 700x38mm
Rear Tire
Pathfinder Sport, 700x38mm
Pedals
Specialized Body Geometry Fitness, platform, plastic
Rear Brake
Shimano BR-MT200, hydraulic disc, 160mm
Front Brake
Shimano BR-MT200, hydraulic disc, 160mm
Handlebars
Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm
SeatPost
Alloy, 2-bolt, 14mm offset, 27.2mm
Saddle
Bridge Comp, Hollow Cr-mo rails, 155/143mm
Seat Binder
Bolt-type, 31.8mm
Tape
Specialized Neutralizer, Body Geometry, locking grip
Stem
Future Stem, Comp
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
Spokes
Stainless, 14g
Fork
Carbon Monocoque, 12x100mm flat thru-axle, flat mount disc, Future Shock 1.5
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
XXS | XS | S | M | L | XL | |
---|---|---|---|---|---|---|
Crank Length | 165mm | 165mm | 170mm | 170mm | 175mm | 175mm |
Handlebar Width | 660mm | 660mm | 660mm | 680mm | 680mm | 680mm |
Stem Length | 60mm | 60mm | 70mm | 80mm | 90mm | 100mm |
Saddle Width | 155mm | 155mm | 155mm | 143mm | 143mm | 143mm |
Seatpost Length | 300mm | 300mm | 350mm | 350mm | 400mm | 400mm |
Stack | 587mm | 590mm | 606mm | 635mm | 651mm | 672mm |
Reach | 355mm | 371mm | 376mm | 382mm | 386mm | 398mm |
Head-Tube Length | 111mm | 125mm | 143mm | 169mm | 186mm | 208mm |
Head-Tube Angle | 69.5° | 70° | 70° | 71° | 71° | 71° |
B-B Height | 284mm | 284mm | 284mm | 284mm | 284mm | 284mm |
B-B Drop | 70mm | 70mm | 70mm | 70mm | 70mm | 70mm |
Trail | 78mm | 75mm | 75mm | 68mm | 68mm | 68mm |
Fork Length (full) | 395mm | 395mm | 395mm | 395mm | 395mm | 395mm |
Fork Rake/Offset | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm |
Front-Center | 602mm | 618mm | 629mm | 634mm | 644mm | 663mm |
Chain-Stay Length | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
Wheelbase | 1033mm | 1049mm | 1060mm | 1065mm | 1074mm | 1093mm |
Top-Tube Length (horizontal) | 529mm | 549mm | 559mm | 573mm | 581mm | 599mm |
Bike Stand-Over Height | 700mm | 722mm | 750mm | 778mm | 810mm | 831mm |
Seat-Tube Length | 360mm | 395mm | 440mm | 470mm | 510mm | 530mm |
Seat-Tube Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |