Compare: 2026 XMCS Aero 2026 Base Medium vs 2027 Specialized Bicycles Tarmac SL9 S-Works 54

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Specialized Bicycles Tarmac SL9

Stack	543mm	544mm +1mm
Reach	384mm	384mm +0mm
Stack to Reach Ratio	1.41:1	1.42:1
Seat Tube Length, C-TTT	—	473mm
Seat Tube Length, Unknown	520mm	—
Top Tube Length, Effective/Horizontal Center	—	540mm
Top Tube Length, Effective/Horizontal Unknown	544mm	—
Top Tube Slope	4.8deg	7.7deg +2.9deg
Head Tube Angle	72.5deg	72.5deg +0deg
Seat Tube Angle	73.6deg	74deg +0.4deg
Head Tube Length	139mm	139.7mm +0.7mm
Bottom Bracket Drop	70mm	72mm +2mm
Bottom Bracket Height	269mm	271mm +2mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	404mm	403.6mm -0.4mm
Front-Center	585mm	587mm +2mm
Front-Center Horizontal	580mm	582.4mm +2.4mm
Wheelbase	984mm	986mm +2mm
Fork Offset/Rake	45mm	47mm +2mm
Fork Length (Axle-To-Crown)	—	369mm
Fork Length, Unknown	370mm	—
Trail	59.7mm mid/neutral	58.9mm -0.8mm mid/neutral
Mechanical Trail	56.9mm	56.1mm -0.8mm
Wheel Flop	17.1mm	16.9mm -0.2mm
Standover Height	—	767mm
Tire to Pedal Spindle	76mm 170 mm cranks	71.5mm -4.5mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	98.5mm -0.5mm 172.5 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	1662mm	1672mm +10mm
Crank Length	—	172.5mm
Handlebar Width	—	420mm
Stem Length	—	100mm
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