Compare: 2025 SPCYCLE SP-R088 Base 54 vs 2027 Specialized Bicycles Tarmac SL9 S-Works 54

Insights

Somewhat aggressive stack and reach vs trend of endurance road bikes

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Specialized Bicycles Tarmac SL9

Stack	545mm	544mm -1mm
Reach	384mm	384mm +0mm
Stack to Reach Ratio	1.42:1	1.42:1
Seat Tube Length, C-T	474mm	—
Seat Tube Length, C-TTT	—	473mm
Top Tube Length, Effective/Horizontal Center	—	540mm
Top Tube Length, Effective/Horizontal HT Top	540mm	—
Top Tube Slope	9.9deg	7.7deg -2.2deg
Head Tube Angle	73deg	72.5deg -0.5deg
Seat Tube Angle	74deg	74deg +0deg
Head Tube Length	—	139.7mm
Bottom Bracket Drop	74mm	72mm -2mm
Bottom Bracket Height	269mm	271mm +2mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.3mm	403.6mm +0.3mm
Front-Center	582mm	587mm +5mm
Front-Center Horizontal	576.7mm	582.4mm +5.7mm
Wheelbase	980mm	986mm +6mm
Fork Offset/Rake	46.6mm	47mm +0.4mm
Fork Length (Axle-To-Crown)	—	369mm
Trail	56.1mm mid/neutral	58.9mm +2.8mm mid/neutral
Mechanical Trail	53.7mm	56.1mm +2.4mm
Wheel Flop	15.7mm	16.9mm +1.2mm
Standover Height	—	767mm
Tire to Pedal Spindle	69mm 170 mm cranks	71.5mm +2.5mm 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	32mm	32mm +0mm
Tire Outer Diameter	686mm	686mm +0mm
Bike Length with Tires	1666mm	1672mm +6mm
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