2021 Specialized Bicycles Sirrus 3.0
- Category
- Fitness
- Design
- Flat Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XXS | XS | S | M | L | XL | |
Stack | 536mm | 555mm | 562mm | 593mm | 608mm | 632mm |
Reach | 373mm | 388mm | 393mm | 398mm | 402mm | 414mm |
Stack to Reach Ratio | 1.44:1 | 1.43:1 | 1.43:1 | 1.49:1 | 1.51:1 | 1.53:1 |
Seat Tube Length, Unknown | 360mm | 395mm | 440mm | 470mm | 510mm | 530mm |
Top Tube Length, Effective/Horizontal Center | 531mm | 552mm | 559mm | 573mm | 582mm | 601mm |
Top Tube Slope | 21.9deg | 19.4deg | 15.1deg | 15deg | 12.3deg | 12.4deg |
Head Tube Angle | 69.5deg | 70deg | 70deg | 71deg | 71deg | 71deg |
Seat Tube Angle | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Head Tube Length | 121mm | 139mm | 147mm | 175mm | 191mm | 217mm |
Bottom Bracket Drop | 70mm | 70mm | 70mm | 70mm | 70mm | 70mm |
Bottom Bracket Height | 273mm | 273mm | 273mm | 273mm | 273mm | 273mm |
Chainstay Length | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
Chainstay Length Horizontal | 434.4mm | 434.4mm | 434.4mm | 434.4mm | 434.4mm | 434.4mm |
Front-Center | 605mm | 622mm | 630mm | 635mm | 645mm | 665mm |
Front-Center Horizontal | 601.6mm | 618.6mm | 626.6mm | 631.6mm | 640.6mm | 661.6mm |
Wheelbase | 1036mm | 1053mm | 1061mm | 1066mm | 1075mm | 1096mm |
Fork Offset/Rake | 50.9mm | 50.8mm | 51.2mm | 50.6mm | 50.5mm | 51.1mm |
Fork Length (Axle-To-Crown) | 395mm | 395mm | 395mm | 395mm | 395mm | 395mm |
Trail | 73.9mm high | 70.8mm high | 70.3mm high | 64.6mm mid/neutral | 64.8mm mid/neutral | 64mm mid/neutral |
Mechanical Trail | 69.2mm | 66.5mm | 66.1mm | 61.1mm | 61.2mm | 60.5mm |
Wheel Flop | 24.2mm | 22.7mm | 22.6mm | 19.9mm | 19.9mm | 19.7mm |
Standover Height | 692mm | 715mm | 745mm | 775mm | 805mm | 827mm |
Tire to Pedal Spindle | 97mm 165 mm cranks | 114mm 165 mm cranks | 117mm 170 mm cranks | 122mm 170 mm cranks | 127mm 175 mm cranks | 147mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 108mm 165 mm cranks | 108mm 165 mm cranks | 103mm 170 mm cranks | 103mm 170 mm cranks | 98mm 175 mm cranks | 98mm 175 mm cranks |
3.0 Build
XXS | XS | S | M | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm |
Tire Outer Diameter | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm |
Bike Length with Tires | 1722mm | 1739mm | 1747mm | 1752mm | 1761mm | 1782mm |
Crank Length | 165mm | 165mm | 170mm | 170mm | 175mm | 175mm |
Handlebar Width | 580mm | 580mm | 600mm | 600mm | 620mm | 620mm |
Stem Length | 70mm | 70mm | 80mm | 90mm | 100mm | 110mm |
Published Sizing Recommendations
Height | 142 cm to 150 cm | 150 cm to 158 cm | 155 cm to 165 cm | 165 cm to 175 cm | 175 cm to 183 cm | 183 cm to 193 cm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
FitnessSource:https://www.specialized.com/us/en/sirrus-3-0/p/174692?color=279720-174692