Overview
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.
Tech Specs:
Frame: Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
Fork: A1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release
Bottom Bracket: Threaded BSA 68mm, 24mm spindle
Stem: 3D-forged alloy, 31.8mm, 7-degree rise
Handlebar: Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm
Saddle: Bridge Sport, Steel rails, 155/143mm
Seatpost: Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Pedals: Specialized Body Geometry Fitness, platform, plastic
Groupset:
Rear Derailleur: microSHIFT Advent, 1×9 w/ clutch
Crank: Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide steel chainring, 40T
Shifters: microSHIFT TrailTrigger Pro, 9-speed
Cassette: microSHIFT Advent, 9-speed, 11-42t
Chain: KMC X9, 9-speed w/ Missing Link™
Brakes: Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm
Wheelset:
Rims: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Spokes: Stainless, 14g
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
Tires: Front: Pathfinder Sport, 700×42, Rear: Pathfinder Sport, 700×42












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