| Inches | CM | Size |
| 5'1"-5'5" | 155-165 | Small |
| 5'5"-5'9" | 165-175 | Medium |
| 5'9"-6'0" | 175-183 | Large |
| 6'0"6'4" | 183-193 | X-Large |
The Sirrus X isn’t just a hybrid—it’s your invitation to ride more, and to ride everywhere. By blending an unprecedented mix of comfort, efficiency, and nimble handling, it excels whether you’re sticking to the pavement or exploring the local dirt paths.
The Ride Feel: Smooth, Comfortable, and Efficient
The Sirrus X delivers the smoothest ride in its class. We’ve paired a slightly more upright riding position with high-volume, confidence-inspiring tires and an intuitive "one-by" drivetrain to keep things simple. It’s designed to be the bike you actually want to ride every single day.
Rider-First Engineered™ Precision
Every frame is uniquely crafted to ensure a premium experience for every rider. By specifically selecting tube sizes and carbon layups for each individual frame size, we achieve the perfect balance of rigidity, weight, and responsiveness. Regardless of your height, you’ll experience the world-class handling Specialized is known for.
Key Performance Highlights
- Ultralight A1 Alloy Frame: Featuring clean internal cable routing, this frame is a staggering 3.5lbs (1.7kg) lighter than our previous Crosstrail Hydro model.
- Telepathic Handling: Exceptional pedaling efficiency and steering precision merge for a ride that feels light, fast, and incredibly responsive to your every move.
- Intuitive 1x9 Drivetrain: Maximum control meets simplicity with a wide-range 11-46t gearing and powerful hydraulic disc brakes for stopping on a dime.
- Pathfinder 40c Tires: Float over rough terrain with fast-rolling tires featuring our proprietary Gripton rubber compound for ultimate traction and speed.
Specialized
Sirrus X 2.0 (2027)
SKU: 92427-6504
The Sirrus X isn’t just a hybrid—it’s your invitation to ride more, and to ride everywhere. By blending an unprecedented mix of comfort, efficiency, and nimble handling, it excels whether you’re sticking to the pavement or exploring the local dirt paths.
The Ride Feel: Smooth, Comfortable, and Efficient
The Sirrus X delivers the smoothest ride in its class. We’ve paired a slightly more upright riding position with high-volume, confidence-inspiring tires and an intuitive "one-by" drivetrain to keep things simple. It’s designed to be the bike you actually want to ride every single day.
Rider-First Engineered™ Precision
Every frame is uniquely crafted to ensure a premium experience for every rider. By specifically selecting tube sizes and carbon layups for each individual frame size, we achieve the perfect balance of rigidity, weight, and responsiveness. Regardless of your height, you’ll experience the world-class handling Specialized is known for.
Key Performance Highlights
- Ultralight A1 Alloy Frame: Featuring clean internal cable routing, this frame is a staggering 3.5lbs (1.7kg) lighter than our previous Crosstrail Hydro model.
- Telepathic Handling: Exceptional pedaling efficiency and steering precision merge for a ride that feels light, fast, and incredibly responsive to your every move.
- Intuitive 1x9 Drivetrain: Maximum control meets simplicity with a wide-range 11-46t gearing and powerful hydraulic disc brakes for stopping on a dime.
- Pathfinder 40c Tires: Float over rough terrain with fast-rolling tires featuring our proprietary Gripton rubber compound for ultimate traction and speed.
SPECIFICATIONS
GEOMETRY
| XXS | XS | S | M | L | XL | |
|---|---|---|---|---|---|---|
| Crank Length | 165 | 165 | 170 | 170 | 175 | 175 |
| Handlebar Width | 680 | 680 | 680 | 680 | 680 | 680 |
| Stem Length | 60 | 60 | 70 | 80 | 90 | 100 |
| Saddle Width | 155 | 155 | 155 | 143 | 143 | 143 |
| Seatpost Length | 300 | 300 | 350 | 350 | 400 | 400 |
| Stack | 536 | 555 | 563 | 593 | 608 | 633 |
| Reach | 373 | 388 | 393 | 398 | 402 | 414 |
| Head-Tube Length | 121 | 139 | 147 | 175 | 191 | 217 |
| Head-Tube Angle | 69.5 | 70 | 70 | 71 | 71 | 71 |
| B-B Height | 288 | 288 | 288 | 288 | 288 | 288 |
| B-B Drop | 70 | 70 | 70 | 70 | 70 | 70 |
| Trail | 79 | 76 | 76 | 69 | 69 | 69 |
| Fork Length (full) | 395 | 395 | 395 | 395 | 395 | 395 |
| Fork Rake/Offset | 51 | 51 | 51 | 51 | 51 | 51 |
| Front-Center | 606 | 623 | 631 | 636 | 645 | 665 |
| Chain-Stay Length | 440 | 440 | 440 | 440 | 440 | 440 |
| Wheelbase | 1036 | 1053 | 1061 | 1067 | 1076 | 1096 |
| Top-Tube Length (horizontal) | 532 | 552 | 560 | 574 | 582 | 602 |
| Bike Stand-Over Height | 702 | 725 | 755 | 785 | 815 | 837 |
| Seat-Tube Length | 360 | 395 | 440 | 470 | 510 | 530 |
| Seat-Tube Angle | 73.5 | 73.5 | 73.5 | 73.5 | 73.5 | 73.5 |