Compare: 2024 Speeder Cycling SC-R55D Base 510 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	540mm	544mm +4mm
Reach	388mm	384mm -4mm
Stack to Reach Ratio	1.39:1	1.42:1
Seat Tube Length, C-T	510mm	—
Seat Tube Length, C-TTT	—	473mm
Top Tube Length, Effective/Horizontal Center	—	540mm
Top Tube Length, Effective/Horizontal Unknown	542mm	—
Top Tube Slope	5.4deg	7.7deg +2.3deg
Head Tube Angle	72.5deg	72.5deg +0deg
Seat Tube Angle	74deg	74deg +0deg
Head Tube Length	135mm	139.7mm +4.7mm
Bottom Bracket Drop	70mm	72mm +2mm
Bottom Bracket Height	269mm	271mm +2mm
Chainstay Length	408mm	410mm +2mm
Chainstay Length Horizontal	402mm	403.6mm +1.6mm
Front-Center	588mm	587mm -1mm
Front-Center Horizontal	584.1mm	582.4mm -1.7mm
Wheelbase	986mm	986mm +0mm
Fork Offset/Rake	46mm	47mm +1mm
Fork Length (Axle-To-Crown)	370mm	369mm -1mm
Trail	58.7mm mid/neutral	58.9mm +0.2mm mid/neutral
Mechanical Trail	55.9mm	56.1mm +0.2mm
Wheel Flop	16.8mm	16.9mm +0.1mm
Standover Height	—	767mm
Tire to Pedal Spindle	79mm 170 mm cranks	71.5mm -7.5mm 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 Width Max	32mm	—
Tire Outer Diameter	678mm	686mm +8mm
Bike Length with Tires	1664mm	1672mm +8mm
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