Compare: 2026 XMCS Aero 2026 Base Small vs 2027 Specialized Bicycles Tarmac SL9 S-Works 52

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Specialized Bicycles Tarmac SL9

Stack	525mm	527mm +2mm
Reach	378mm	380mm +2mm
Stack to Reach Ratio	1.39:1	1.39:1
Seat Tube Length, C-TTT	—	456mm
Seat Tube Length, Unknown	500mm	—
Top Tube Length, Effective/Horizontal Center	—	531mm
Top Tube Length, Effective/Horizontal Unknown	529mm	—
Top Tube Slope	4.9deg	7.7deg +2.8deg
Head Tube Angle	72deg	72.5deg +0.5deg
Seat Tube Angle	74deg	74deg +0deg
Head Tube Length	121.9mm	119.8mm -2.1mm
Bottom Bracket Drop	70mm	74mm +4mm
Bottom Bracket Height	269mm	269mm +0mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	404mm	403.3mm -0.7mm
Front-Center	577mm	577mm +0mm
Front-Center Horizontal	573mm	571.7mm -1.3mm
Wheelbase	977mm	975mm -2mm
Fork Offset/Rake	45mm	47mm +2mm
Fork Length (Axle-To-Crown)	—	369mm
Fork Length, Unknown	370mm	—
Trail	62.8mm mid/neutral	58.9mm -3.9mm mid/neutral
Mechanical Trail	59.8mm	56.1mm -3.7mm
Wheel Flop	18.5mm	16.9mm -1.6mm
Standover Height	—	745mm
Tire to Pedal Spindle	68mm 170 mm cranks	64mm -4mm 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	99mm +0mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	32mm +4mm
Tire Outer Diameter	678mm	686mm +8mm
Bike Length with Tires	1655mm	1661mm +6mm
Crank Length	—	170mm
Handlebar Width	—	420mm
Stem Length	—	90mm
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Carbon/Composite
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Disc