Compare: 2027 Cervelo Cycles Aspero 5 Base 48 vs 2025 Serk Titanium A40 Base XS

Insights

Somewhat aggressive stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of Cervelo Cycles Aspero 5

Average stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of Serk Titanium A40

Stack	500mm	519mm +19mm
Reach	369mm	366mm -3mm
Stack to Reach Ratio	1.36:1	1.42:1
Seat Tube Length, Unknown	—	435mm
Top Tube Length, Effective/Horizontal Center	516mm	—
Top Tube Length, Effective/Horizontal Unknown	—	505mm
Top Tube Slope	—	11.7deg
Head Tube Angle	70.6deg	71deg +0.4deg
Seat Tube Angle	74.1deg	75deg +0.9deg
Head Tube Length	75mm	90mm +15mm
Bottom Bracket Drop	80mm	77mm -3mm
Bottom Bracket Height	273mm	274mm +1mm
Chainstay Length	422.5mm	420mm -2.5mm
Chainstay Length Horizontal	414.9mm	412.9mm -2mm
Front-Center	584mm	573.3mm -10.7mm
Front-Center Horizontal	578.5mm	568.1mm -10.4mm
Wheelbase	993.4mm	981mm -12.4mm
Wheelbase Max	993mm	—
Fork Offset/Rake	57.5mm	47mm -10.5mm
Trail	63.4mm mid/neutral	71.2mm +7.8mm high
Mechanical Trail	59.8mm	67.3mm +7.5mm
Wheel Flop	19.9mm	21.9mm +2mm
Standover Height	720mm	722mm +2mm
Tire to Pedal Spindle	61mm 170 mm cranks	52.3mm -8.7mm 170 mm cranks
Pedal Spindle to Ground Clearance	103mm 170 mm cranks	104mm +1mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	42mm	40mm -2mm
Tire Width Max	45mm	—
Tire Outer Diameter	706mm	702mm -4mm
Bike Length with Tires	1699.4mm	1683mm -16.4mm
Crank Length	170mm	—
Suspension Type	Rigid, non-suspension corrected	Rigid, non-suspension corrected
Bar Type	Drop Bar	Drop Bar
Frame Material	Carbon/Composite	Titanium
Fork Material	Carbon/Composite	Carbon/Composite
Brake Type	Disc	Unknown