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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. 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. Here's to your new life on two wheels.
- Even lighter (1.6 lbs/.8kg) and faster thanks to an added A1 alloy fork.
- Wide Range 1x9 Microshift Advent shift system gives excellent range with a clutch system to keep the chain on over harsh bumps.
- More powerful hydraulic brakes and premium 2 piece crank design for enhanced braking power and durability in tough conditions.
Technical Specifications
DRIVETRAIN
| Chainrings | 40T |
| Shift Levers | microSHIFT Advent, 9-speed |
| Bottom Bracket | Threaded BSA 68mm |
| Rear Derailleur | microSHIFT Advent, 1x9 w/ clutch |
| Crankset | Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide steel chainring |
| Cassette | microSHIFT Advent, 9-speed, 11-42t |
| Chain | KMC X9, 9-speed w/ Missing Link™ |
BRAKES
| Rear Brake | Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 140mm |
| Front Brake | Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm |
ACCESSORIES
| Pedals | Specialized Body Geometry Fitness, platform, plastic |
COCKPIT
| Stem | Specialized, 3D-forged alloy, 4-bolt, 7-degree rise |
| SeatPost | Alloy, 12mm offset, 2-bolt clamp, 27.2mm |
| Saddle | Bridge Sport, Steel rails, 155/143mm |
| Seat Binder | Specialized bolt-type, alloy, 31.8mm |
| Tape | Specialized Neutralizer, Body Geometry, locking grip |
| Handlebars | Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm |
WHEELS & TIRES
| Inner Tubes | Presta, 40mm valve |
| Spokes | Stainless, 14g |
| Rear Hub | Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h |
| 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 Tire | Pathfinder Sport, 700x42mm |
| Front Tire | Pathfinder Sport, 700x42mm |
SUSPENSION
| Fork | A1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release |
FRAMESET
| Frame | Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts |
* Specifications are subject to change without notice
Geometry
Sirrus X - Geometry
| XXS | XS | S | M | L | XL | |
|---|---|---|---|---|---|---|
| Crank Length | 165mm | 165mm | 170mm | 170mm | 175mm | 175mm |
| Stem Length | 60mm | 60mm | 70mm | 80mm | 90mm | 100mm |
| Seatpost Length | 300mm | 300mm | 350mm | 350mm | 400mm | 400mm |
| Saddle Width | 155mm | 155mm | 155mm | 143mm | 143mm | 143mm |
| Handlebar Width | 660mm | 660mm | 660mm | 680mm | 680mm | 680mm |
| Reach | 373mm | 388mm | 393mm | 398mm | 402mm | 414mm |
| Stack | 536mm | 555mm | 563mm | 593mm | 608mm | 633mm |
| Wheelbase | 1036mm | 1053mm | 1061mm | 1067mm | 1076mm | 1096mm |
| Bike Stand-Over Height | 702mm | 725mm | 755mm | 785mm | 815mm | 837mm |
| Head-Tube Length | 121mm | 139mm | 147mm | 175mm | 191mm | 217mm |
| Front-Center | 606mm | 623mm | 631mm | 636mm | 645mm | 665mm |
| Fork Rake/Offset | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm |
| Head-Tube Angle | 69.5° | 70° | 70° | 71° | 71° | 71° |
| Trail | 79mm | 76mm | 76mm | 69mm | 69mm | 69mm |
| B-B Height | 288mm | 288mm | 288mm | 288mm | 288mm | 288mm |
| Chain-Stay Length | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
| Fork Length (full) | 395mm | 395mm | 395mm | 395mm | 395mm | 395mm |
| Seat-Tube Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
| B-B Drop | 70mm | 70mm | 70mm | 70mm | 70mm | 70mm |
| Seat-Tube Length | 360mm | 395mm | 440mm | 470mm | 510mm | 530mm |
| Top-Tube Length (horizontal) | 532mm | 552mm | 560mm | 574mm | 582mm | 602mm |