Compare: 2024 Specialized Bicycles Tarmac SL8 Expert 56 vs 2025 Specialized Bicycles CruX Expert 54

Insights

Somewhat aggressive stack and reach vs trend of endurance road bikes

Design deviates from other sizes of Specialized Bicycles Tarmac SL8

Average stack and reach vs trend of cyclocross bikes

Stack	565mm	560mm -5mm
Reach	395mm	388mm -7mm
Stack to Reach Ratio	1.43:1	1.44:1
Seat Tube Length, Unknown	494mm	521mm +27mm
Top Tube Length, Effective/Horizontal Center	563mm	549mm -14mm
Top Tube Slope	9.7deg	6.4deg -3.3deg
Head Tube Angle	73.5deg	71.5deg -2deg
Seat Tube Angle	73.5deg	74deg +0.5deg
Head Tube Length	157mm	130mm -27mm
Bottom Bracket Drop	72mm	72mm +0mm
Bottom Bracket Height	265mm	277mm +12mm
Chainstay Length	410mm	425mm +15mm
Chainstay Length Horizontal	403.6mm	418.9mm +15.3mm
Front-Center	592mm	608mm +16mm
Front-Center Horizontal	587.4mm	604.1mm +16.7mm
Wheelbase	991mm	1023mm +32mm
Fork Offset/Rake	44mm	50mm +6mm
Fork Length (Axle-To-Crown)	—	401mm
Fork Length, Unknown	370mm	—
Trail	53.9mm mid/neutral	64.1mm +10.2mm mid/neutral
Mechanical Trail	51.7mm	60.7mm +9mm
Wheel Flop	14.7mm	19.3mm +4.6mm
Standover Height	786mm	794mm +8mm
Tire to Pedal Spindle	82.5mm 172.5 mm cranks	86.5mm +4mm 172.5 mm cranks
Pedal Spindle to Ground Clearance	92.5mm 172.5 mm cranks	104.5mm +12mm 172.5 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	26mm	38mm +12mm
Tire Outer Diameter	674mm	698mm +24mm
Bike Length with Tires	1665mm	1721mm +56mm
Crank Length	172.5mm	172.5mm +0mm
Handlebar Width	420mm	420mm +0mm
Stem Length	100mm	90mm -10mm
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