Compare: 2018 Specialized Bicycles Tarmac Expert 61 vs 2025 Canyon Bicycles Aeroad CF SLX XL

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Specialized Bicycles Tarmac

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Canyon Bicycles Aeroad

Stack	612mm	606mm -6mm
Reach	408mm	419mm +11mm
Stack to Reach Ratio	1.5:1	1.45:1
Seat Tube Length, C-T	553mm	591mm +38mm
Top Tube Length, Effective/Horizontal Center	600mm	594mm -6mm
Top Tube Slope	8.4deg	3.8deg -4.6deg
Head Tube Angle	74deg	73.5deg -0.5deg
Seat Tube Angle	72.5deg	73.5deg +1deg
Head Tube Length	210mm	188mm -22mm
Bottom Bracket Drop	67.5mm	70mm +2.5mm
Bottom Bracket Height	267.5mm	269mm +1.5mm
Chainstay Length	410mm	415mm +5mm
Chainstay Length Horizontal	404.4mm	409.1mm +4.7mm
Front-Center	612mm	623.9mm +11.9mm
Front-Center Horizontal	608.6mm	620mm +11.4mm
Wheelbase	1013mm	1029mm +16mm
Fork Offset/Rake	43mm	40.4mm -2.6mm
Fork Length, Unknown	368mm	—
Trail	51.3mm mid/neutral	58.2mm +6.9mm mid/neutral
Mechanical Trail	49.3mm	55.8mm +6.5mm
Wheel Flop	13.6mm	15.9mm +2.3mm
Standover Height	850mm	851mm +1mm
Tire to Pedal Spindle	102mm 175 mm cranks	109.9mm +7.9mm 175 mm cranks
Pedal Spindle to Ground Clearance	92.5mm 175 mm cranks	94mm +1.5mm 175 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	24mm	28mm +4mm
Tire Outer Diameter	670mm	678mm +8mm
Bike Length with Tires	1683mm	1707mm +24mm
Crank Length	175mm	175mm +0mm
Handlebar Width	440mm	—
Stem Length	110mm	110mm +0mm
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	Rim	Disc