Specialized Sirrus X 6.0 2025
Bike details
Key information split into simple groups.
Bike summary
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Frame Carbon
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Travel Front 20mm
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Fork Specialized Future Shock 1.5
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Groupset GX Eagle, Rival
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Suspension Hardtail
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Drivetrain 1 × 12
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Brakes SRAM Hydraulic Disc
Recommended size guide.
XS
158cm - 167cm
SM
165cm - 173cm
MD
169cm - 180cm
LG
177cm - 186cm
XL
183cm - 191cm
XXL
186cm - 194cm
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
Specialized FACT 9r Carbon, Fitness Geometry, 1x Drivetrain, 12x142 thru-axle, internal cable routing, flat-mount disc, Plug + Play rack/fender mounts
Suspension Fork
Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5
Drivetrain
Rear Derailleur
SRAM GX Eagle, 12-speed
Shift Levers
SRAM GX, trigger, 12-speed
Cassette
SRAM GX Eagle, 12-speed, 11-50t
Crank
SRAM Rival DUB Wide, 42T, 42T
Bottom Bracket
SRAM DUB BSA 68 Wide
Chain
SRAM GX Eagle, 12-speed
Pedals
VP Platform, Alloy Body
Wheels
Front Hub
Specialized front hub disc, sealed cartridge bearings, 12x100mm thru-axle, 24h
Rear Hub
Specialized, sealed cartridge bearings, 12x142mm thru-axle, 24h
Rims
DT Swiss R470, 23mm depth, 20mm internal width, disc brake, 24h
Spokes
Stainless, 14g
Tires
Front: Pathfinder Pro 2BR, 700x38, Rear: Pathfinder Pro 2BR, 700x38
Brakes
Brakes
Front: SRAM S-300, Rear: SRAM S-300
Cockpit
Stem
Future Stem, Comp
Handlebar
Double-butted alloy, 9-degree backsweep, 31.8mm
Seat
Saddle
Body Geometry Power Sport, steel rails
Seatpost
Roval Terra Carbon Seat Post, 20mm Offset
Fit data
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG | XL | XXL |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.657 mm | 1.644 mm | 1.645 mm | 1.646 mm | 1.659 mm | 1.671 mm |
| Bottom Bracket Height | 268 mm | 268 mm | 268 mm | 268 mm | 268 mm | 268 mm |
| Front Center | 597 mm | 619 mm | 637 mm | 656 mm | 681 mm | 700 |
| Rake | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm |
| Trail | 76 mm | 76 mm | 72 mm | 69 mm | 69 mm | 66 mm |
| Stack | 580 mm | 600 mm | 625 mm | 650 | 680 mm | 710 mm |
| Reach | 350 mm | 365 mm | 380 mm | 395 mm | 410 mm | 425 mm |
| Top Tube Length | 521 mm | 547 mm | 568 mm | 590 mm | 614 mm | 644 mm |
| Seat Tube Angle | 74 ° | 73.5 ° | 73.5 ° | 73.5 ° | 73.5 ° | 73 ° |
| Seat Tube Length | 355 mm | 416 mm | 453 mm | 483 mm | 533 mm | 563 mm |
| Head Tube Angle | 69.5 ° | 69.5 ° | 70 ° | 70.5 ° | 70.5 ° | 71 ° |
| Head Tube Length | 107 mm | 128 mm | 151 mm | 176 mm | 208 mm | 237 mm |
| Chainstay Length | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1109 mm | 1128 mm | 1024 mm | 1047 mm | 1065 mm | 1084 mm |
| Bottom Bracket Drop | 80 mm | 80 mm | 80 mm | 80 mm | 80 mm | 80 mm |
| Standover Height | 703 mm | 748 mm | 780 mm | 807 mm | 847 mm | 872 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 |
| Rider Min Height | 158 cm | 165 cm | 169 cm | 177 cm | 183 cm | 186 cm |
| Rider Max Height | 167 cm | 173 cm | 180 cm | 186 cm | 191 cm | 194 cm |
