Specialized Sirrus X 3.0 2021 - Hybrid Sports Bike
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.
- Even lighter (1.6 lbs/.8kg) than Sirrus X 2.0, and faster thanks to an added A1 alloy fork.
- Wide-range 1x10 Shimano Deore drivetrain with a 11-42t cassette gives excellent range on any road.
- More powerful hydraulic brakes and premium 2 piece crank design for enhanced braking power and durability in tough conditions.
Occasionally, without notice, manufacturers change product design and/or specifications.
| 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 |
| Stem | releaseSTEMSpecialized, 3D-forged alloy, 4-bolt, 7-degree rise |
| Bars | Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm |
| Front Brake | Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm |
| Rear Brake | Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 140mm |
| Rear Mech | Shimano Deore M4120, SGS, 10-speed |
| Shifters | Shimano Deore M4100, 10-speed |
| Speed | 10 |
| 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 Tyre | Pathfinder Sport, 700x42 |
| Rear Tyre | Pathfinder Sport, 700x42 |
| Seat Post | Alloy, 12mm offset, 2-bolt clamp, 27.2mm |
| Saddle | Bridge Sport, Steel rails, 155/143mm |
| Chainset | Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide steel chainring, 40T |
| Bottom Bracket | Threaded BSA 68mm |
| Chain | KMC X10, 10-speed w/ reusable Missing Link™ |
| Cassette | Shimano Deore, 10spd, 11-42t |
| Pedals | Specialized Body Geometry Fitness, platform, plastic |
Specialized Sirrus X 2021 Size Chart
| Frame Size | Height (cm) | Height (in) |
| XXS | 142 - 150 | 4' 8" - 4' 11" |
| XS | 150 - 158 | 4' 11" - 5' 2" |
| S | 155 - 165 | 5' 1" - 5' 5" |
| M | 165 - 175 | 5' 5" - 5' 9" |
| L | 175 - 183 | 5' 9" - 6' 0" |
| XL | 183 - 193 | 6' 0" - 6' 4" |
| XXL | 193 - 198 | 6' 4" - 6' 6" |
What size frame do I need if I am between sizes? - read here
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