Compare: 2027 Specialized Bicycles Tarmac SL9 S-Works 61 vs 2026 XMCS Aero Racing Base XL

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Specialized Bicycles Tarmac SL9

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of XMCS Aero Racing

Stack	612mm	612mm +0mm
Reach	408mm	408mm +0mm
Stack to Reach Ratio	1.5:1	1.5:1
Seat Tube Length, C-TTT	545mm	—
Seat Tube Length, Unknown	—	540mm
Top Tube Length, Effective/Horizontal Center	595mm	595mm +0mm
Top Tube Slope	7.1deg	9.6deg +2.5deg
Head Tube Angle	74deg	74deg +0deg
Seat Tube Angle	73deg	73deg +0deg
Head Tube Length	204.4mm	199mm -5.4mm
Bottom Bracket Drop	72mm	72mm +0mm
Bottom Bracket Height	271mm	274mm +3mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.6mm	403.6mm +0mm
Front-Center	613mm	616mm +3mm
Front-Center Horizontal	608.4mm	611.4mm +3mm
Wheelbase	1012mm	1015mm +3mm
Fork Offset/Rake	44mm	44mm +0mm
Fork Length (On-Axis)	—	375mm
Fork Length (Axle-To-Crown)	369mm	—
Trail	52.6mm mid/neutral	53.4mm +0.8mm mid/neutral
Mechanical Trail	50.5mm	51.4mm +0.9mm
Wheel Flop	13.9mm	14.2mm +0.3mm
Standover Height	833mm	819mm -14mm
Tire to Pedal Spindle	95mm 175 mm cranks	100mm +5mm 170 mm cranks
Pedal Spindle to Ground Clearance	96mm 175 mm cranks	104mm +8mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	35mm +3mm
Tire Width Max	—	35mm
Tire Outer Diameter	686mm	692mm +6mm
Bike Length with Tires	1698mm	1707mm +9mm
Crank Length	175mm	—
Handlebar Width	440mm	—
Stem Length	110mm	—
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