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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.
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.
Frame |
Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts |
Fork |
Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release |
SeatPost |
Alloy, 12mm offset, 2-bolt clamp, 27.2mm |
Stem |
3D-forged alloy, 31.8mm, 7-degree rise |
Tape |
Specialized Neutralizer, Body Geometry, locking grip |
Handlebars |
Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm |
Saddle |
Bridge Sport, Steel rails, 155/143mm |
Seat Binder |
Bolt-type, 31.8mm |
Rear Brake |
Promax F1, hydraulic disc, flat-mount, 160mm |
Front Brake |
Promax F1, hydraulic disc, flat-mount, 160mm |
Shift Levers |
MicroSHIFT, 8-speed |
Rear Derailleur |
MicroSHIFT Acolyte 8-speed, with Clutch |
Cassette |
MicroSHIFT, 8-Speed, 12-42t |
Crankset |
3 pc, Alloy Forged Arms |
Chainrings |
40T, chainguard |
Bottom Bracket |
BSA, square-taper, 68mm |
Chain |
KMC X8 w/ Missing Link™ |
Rims |
700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h |
Front Hub |
Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h |
Rear Hub |
Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h |
Spokes |
Stainless, 14g |
Front Tire |
Pathfinder Sport, 700x42mm |
Rear Tire |
Pathfinder Sport, 700x42mm |
Inner Tubes |
Schrader valve, 40mm |
Weight |
12.3kg (27 lb, 1.9 oz) |