2026 SPect MIRA Base
- Category
- Performance Road
- Design
- Aero Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
48 | 48 | 48 | 48 | 51 | 51 | 51 | 51 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 56 | 56 | 56 | 56 | 58 | 58 | 58 | 58 | |
Stack | 496mm | 496mm | 496mm | 496mm | 519mm | 519mm | 519mm | 519mm | 542mm | 542mm | 542mm | 542mm | 542mm | 542mm | 542mm | 565mm | 565mm | 565mm | 565mm | 588mm | 588mm | 588mm | 588mm |
Reach | 367mm | 367mm | 367mm | 367mm | 376mm | 376mm | 376mm | 376mm | 384mm | 384mm | 384mm | 384mm | 384mm | 384mm | 384mm | 392mm | 392mm | 392mm | 392mm | 401mm | 401mm | 401mm | 401mm |
Stack to Reach Ratio | 1.35:1 | 1.35:1 | 1.35:1 | 1.35:1 | 1.38:1 | 1.38:1 | 1.38:1 | 1.38:1 | 1.41:1 | 1.41:1 | 1.41:1 | 1.41:1 | 1.41:1 | 1.41:1 | 1.41:1 | 1.44:1 | 1.44:1 | 1.44:1 | 1.44:1 | 1.47:1 | 1.47:1 | 1.47:1 | 1.47:1 |
Seat Tube Length, C-TTT | 480mm | — | 480mm | — | — | 510mm | 510mm | — | — | — | — | 540mm | 540mm | 540mm | — | — | 560mm | — | 560mm | 580mm | 580mm | — | — |
Top Tube Length, Effective/Horizontal Center | 520mm | — | 520mm | — | — | 535mm | 535mm | — | — | — | — | 550mm | 550mm | 550mm | — | — | 565mm | — | 565mm | 581mm | 581mm | — | — |
Top Tube Length, Effective/Horizontal Unknown | — | 520mm | — | — | 535mm | — | — | — | — | — | 550mm | — | — | — | 550mm | — | — | 565mm | — | — | — | — | 581mm |
Top Tube Length, Actual C-C | — | — | — | 520mm | — | — | — | 535mm | 550mm | 550mm | — | — | — | — | — | 565mm | — | — | — | — | — | 581mm | — |
Top Tube Slope | 2deg | — | 2deg | — | — | 1.3deg | 1.3deg | — | — | — | — | 0.7deg | 0.7deg | 0.7deg | — | — | 1.1deg | — | 1.1deg | 1.4deg | 1.4deg | — | — |
Head Tube Angle | 71deg | 71deg | 71deg | 71deg | 72deg | 72deg | 72deg | 72deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg |
Seat Tube Angle | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 64mm | 64mm | 64mm | 64mm | 82mm | 82mm | 82mm | 82mm | 104mm | 104mm | 104mm | 104mm | 104mm | 104mm | 104mm | 125mm | 125mm | 125mm | 125mm | 152mm | 152mm | 152mm | 152mm |
Bottom Bracket Drop | 74.5mm | 74.5mm | 74.5mm | 74.5mm | 74.5mm | 74.5mm | 74.5mm | 74.5mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 69.5mm | 69.5mm | 69.5mm | 69.5mm |
Bottom Bracket Height | 266.5mm | 266.5mm | 266.5mm | 266.5mm | 266.5mm | 266.5mm | 266.5mm | 266.5mm | 269mm | 269mm | 269mm | 269mm | 269mm | 269mm | 269mm | 269mm | 269mm | 269mm | 269mm | 271.5mm | 271.5mm | 271.5mm | 271.5mm |
Chainstay Length | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm | 405mm |
Chainstay Length Horizontal | 398.1mm | 398.1mm | 398.1mm | 398.1mm | 398.1mm | 398.1mm | 398.1mm | 398.1mm | 398.6mm | 398.6mm | 398.6mm | 398.6mm | 398.6mm | 398.6mm | 398.6mm | 398.6mm | 398.6mm | 398.6mm | 398.6mm | 399mm | 399mm | 399mm | 399mm |
Front-Center | 579mm | 579mm | 579mm | 579mm | 580mm | 580mm | 580mm | 580mm | 581mm | 581mm | 581mm | 581mm | 581mm | 581mm | 581mm | 588mm | 588mm | 588mm | 588mm | 604mm | 604mm | 604mm | 604mm |
Front-Center Horizontal | 574.9mm | 574.9mm | 574.9mm | 574.9mm | 575.9mm | 575.9mm | 575.9mm | 575.9mm | 576.5mm | 576.5mm | 576.5mm | 576.5mm | 576.5mm | 576.5mm | 576.5mm | 583.5mm | 583.5mm | 583.5mm | 583.5mm | 600mm | 600mm | 600mm | 600mm |
Wheelbase | 973mm | 973mm | 973mm | 973mm | 974mm | 974mm | 974mm | 974mm | 975mm | 975mm | 975mm | 975mm | 975mm | 975mm | 975mm | 982mm | 982mm | 982mm | 982mm | 999mm | 999mm | 999mm | 999mm |
Fork Offset/Rake | 58.5mm | 58.5mm | 58.5mm | 58.5mm | 52.5mm | 52.5mm | 52.5mm | 52.5mm | 46.5mm | 46.5mm | 46.5mm | 46.5mm | 46.5mm | 46.5mm | 46.5mm | 43.5mm | 43.5mm | 43.5mm | 43.5mm | 43.5mm | 43.5mm | 43.5mm | 43.5mm |
Trail | 55.5mm mid/​neutral | 55.5mm mid/​neutral | 55.5mm mid/​neutral | 55.5mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral | 55.6mm mid/​neutral |
Mechanical Trail | 52.5mm | 52.5mm | 52.5mm | 52.5mm | 52.9mm | 52.9mm | 52.9mm | 52.9mm | 53.2mm | 53.2mm | 53.2mm | 53.2mm | 53.2mm | 53.2mm | 53.2mm | 53.4mm | 53.4mm | 53.4mm | 53.4mm | 53.4mm | 53.4mm | 53.4mm | 53.4mm |
Wheel Flop | 17.1mm | 17.1mm | 17.1mm | 17.1mm | 16.3mm | 16.3mm | 16.3mm | 16.3mm | 15.6mm | 15.6mm | 15.6mm | 15.6mm | 15.6mm | 15.6mm | 15.6mm | 15.2mm | 15.2mm | 15.2mm | 15.2mm | 15.2mm | 15.2mm | 15.2mm | 15.2mm |
Standover Height | 712mm | 712mm | 712mm | 712mm | 734mm | 734mm | 734mm | 734mm | 758mm | 758mm | 758mm | 758mm | 758mm | 758mm | 758mm | 781mm | 781mm | 781mm | 781mm | 804mm | 804mm | 804mm | 804mm |
Tire to Pedal Spindle | 68mm 170 mm cranks | 68mm 170 mm cranks | 68mm 170 mm cranks | 68mm 170 mm cranks | 69mm 170 mm cranks | 69mm 170 mm cranks | 69mm 170 mm cranks | 69mm 170 mm cranks | 70mm 170 mm cranks | 70mm 170 mm cranks | 70mm 170 mm cranks | 70mm 170 mm cranks | 70mm 170 mm cranks | 70mm 170 mm cranks | 70mm 170 mm cranks | 77mm 170 mm cranks | 77mm 170 mm cranks | 77mm 170 mm cranks | 77mm 170 mm cranks | 93mm 170 mm cranks | 93mm 170 mm cranks | 93mm 170 mm cranks | 93mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 96.5mm 170 mm cranks | 96.5mm 170 mm cranks | 96.5mm 170 mm cranks | 96.5mm 170 mm cranks | 96.5mm 170 mm cranks | 96.5mm 170 mm cranks | 96.5mm 170 mm cranks | 96.5mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 101.5mm 170 mm cranks | 101.5mm 170 mm cranks | 101.5mm 170 mm cranks | 101.5mm 170 mm cranks |
Base Build
48 | 48 | 48 | 48 | 51 | 51 | 51 | 51 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 56 | 56 | 56 | 56 | 58 | 58 | 58 | 58 | |
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 | 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 | 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 | 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 | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm |
Tire Width Max | 32mm | 32mm | 32mm | 32mm | — | 32mm | 32mm | — | — | 34mm | 34mm | 32mm | 32mm | 32mm | — | — | 32mm | — | 32mm | 32mm | 32mm | — | — |
Tire Outer Diameter | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm |
Bike Length with Tires | 1655mm | 1655mm | 1655mm | 1655mm | 1656mm | 1656mm | 1656mm | 1656mm | 1657mm | 1657mm | 1657mm | 1657mm | 1657mm | 1657mm | 1657mm | 1664mm | 1664mm | 1664mm | 1664mm | 1681mm | 1681mm | 1681mm | 1681mm |
Crank Length | — | 170mm | — | 170mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
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
Performance RoadSource:https://cyclegears.net/products/spect-mira-road-frameset?_pos=1&_sid=e12f18c82&_ss=r, https://cyclegears.net/products/spect-mira-road-frameset?brid=YWdncwH8C8fvsioKBWvY5M_ThXI4, https://www.instagram.com/p/DX_qq8njHnq/, https://geometrygeeks.bike/bike/spect-mira-2026/, https://cdn.fbsbx.com/v/t59.2708-21/698387223_1588976878872519_4883554693508260777_n.pdf/Spect.pdf?_nc_cat=108&ccb=7-5&_nc_sid=2b0e22&_nc_ohc=30bOv7vFNLMQ7kNvwF0T_zG&_nc_oc=AdqU6F1CS_qjxGaBAVbm4GrO3QMrrwKxxaIZaii0L4VHW0SZX6knt1nfeepWQQWYayI&_nc_zt=7&_nc_ht=cdn.fbsbx.com&_nc_gid=PMvgSJwacQqXjZ-f7q0yaQ&_nc_ss=7a3ba&oh=03_Q7cD5QG_DvF7IsDiYrF7OGujKjCg3v4E7XQaU6pHEACBrPNMAg&oe=6A0E759F&dl=1