Compare: 2026 XDS X-LAB AD8 Base S vs 2025 LightCarbon LCR017-D Base 520

Insights

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of XDS X-LAB AD8

Somewhat aggressive stack and reach vs trend of performance road bikes

Stack	520mm	521.2mm +1.2mm
Reach	379mm	390.8mm +11.8mm
Stack to Reach Ratio	1.37:1	1.33:1
Seat Tube Length, C-T	495mm	—
Seat Tube Length, Unknown	—	500mm
Top Tube Length, Effective/Horizontal Center	—	540mm
Top Tube Length, Actual C-C	523mm	—
Top Tube Slope	4.7deg	4.4deg -0.3deg
Head Tube Angle	72deg	72deg +0deg
Seat Tube Angle	75deg	74deg -1deg
Head Tube Length	118mm	121mm +3mm
Bottom Bracket Drop	72mm	70mm -2mm
Bottom Bracket Height	267mm	269mm +2mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	403.6mm	404mm +0.4mm
Front-Center	582mm	588.9mm +6.9mm
Front-Center Horizontal	574.4mm	584.7mm +10.3mm
Wheelbase	978mm	988.7mm +10.7mm
Fork Offset/Rake	48mm	45mm -3mm
Fork Length, Unknown	—	368mm
Trail	59.7mm mid/neutral	62.8mm +3.1mm mid/neutral
Mechanical Trail	56.8mm	59.8mm +3mm
Wheel Flop	17.5mm	18.5mm +1mm
Standover Height	774mm	772mm -2mm
Tire to Pedal Spindle	83mm 160 mm cranks	79.9mm -3.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	107mm 160 mm cranks	99mm -8mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	28mm +0mm
Tire Width Max	—	32mm
Tire Outer Diameter	678mm	678mm +0mm
Bike Length with Tires	1656mm	1666.7mm +10.7mm
Crank Length	160mm	—
Handlebar Width	360mm	—
Stem Length	90mm	—
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