Sirrus X 4.0

by Specialized

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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. 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.

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.

Frameset

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

Saddle: Bridge Comp, Hollow Cr-mo rails, 155/143mm

Stem: Future Stem, Comp

Rear Brake: Tektro HD-R510, hydraulic disc, 160mm

Front Brake: Tektro HD-R510, hydraulic disc, 160mm

Drivetrain

Chainrings: 40T

Crankset: Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide Aluminum chainring

Rear Derailleur: SRAM NX, 11-speed

Shift Levers: SRAM NX, 11-speed

Cassette: SRAM PG-1130, 11-speed, 11-42t

Front/Rear Tire: Pathfinder Sport, 700x38mm