Compare: 2027 Specialized Bicycles Tarmac SL9 S-Works 44 vs 2025 SPCYCLE SP-R066 Base XS

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 SPCYCLE SP-R066

Stack	501mm	507mm +6mm
Reach	366mm	365mm -1mm
Stack to Reach Ratio	1.37:1	1.39:1
Seat Tube Length, C-T	—	450mm
Seat Tube Length, C-TTT	433mm	—
Top Tube Length, Effective/Horizontal Center	496mm	—
Top Tube Length, Effective/Horizontal HT Top	—	501mm
Top Tube Slope	7.4deg	8.5deg +1.1deg
Head Tube Angle	70.5deg	70.5deg +0deg
Seat Tube Angle	75.5deg	75deg -0.5deg
Head Tube Length	99.6mm	105mm +5.4mm
Bottom Bracket Drop	74mm	72mm -2mm
Bottom Bracket Height	269mm	271mm +2mm
Chainstay Length	410mm	408mm -2mm
Chainstay Length Horizontal	403.3mm	401.6mm -1.7mm
Front-Center	572mm	571mm -1mm
Front-Center Horizontal	566.7mm	566.4mm -0.3mm
Wheelbase	970mm	968mm -2mm
Fork Offset/Rake	47mm	45mm -2mm
Fork Length (Axle-To-Crown)	369mm	—
Fork Length, Unknown	—	371mm
Trail	71.6mm high	73.7mm +2.1mm high
Mechanical Trail	67.5mm	69.5mm +2mm
Wheel Flop	22.5mm	23.2mm +0.7mm
Standover Height	722mm	740mm +18mm
Tire to Pedal Spindle	64mm 165 mm cranks	58mm -6mm 170 mm cranks
Pedal Spindle to Ground Clearance	104mm 165 mm cranks	101mm -3mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	32mm +0mm
Tire Width Max	—	32mm
Tire Outer Diameter	686mm	686mm +0mm
Bike Length with Tires	1656mm	1654mm -2mm
Crank Length	165mm	—
Handlebar Width	380mm	—
Stem Length	70mm	—
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