Compare: 2025 Alvas DA Series DA54 M vs 2026 XDS X-LAB RS7 Base M

Insights

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Alvas DA Series

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of XDS X-LAB RS7

Stack	539mm	546mm +7mm
Reach	390mm	380mm -10mm
Stack to Reach Ratio	1.38:1	1.44:1
Seat Tube Length, C-T	—	470mm
Seat Tube Length, C-TTT	503mm	—
Top Tube Length, Effective/Horizontal HT Top	549mm	—
Top Tube Length, Actual C-C	—	531mm
Top Tube Slope	—	10.4deg
Head Tube Angle	72.75deg	73deg +0.25deg
Seat Tube Angle	—	75deg
Effective Seat Tube Angle, Seat Tube Top	73.5deg	—
Head Tube Length	123mm	145mm +22mm
Bottom Bracket Drop	—	70mm
Bottom Bracket Height	—	273mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	—	404mm
Front-Center	—	581mm
Front-Center Horizontal	—	578mm
Wheelbase	983mm	982mm -1mm
Fork Offset/Rake	42mm	50.2mm +8.2mm
Trail	60.4mm mid/neutral	52.4mm -8mm mid/neutral
Mechanical Trail	57.6mm	50.1mm -7.5mm
Wheel Flop	17.1mm	14.6mm -2.5mm
Standover Height	778mm	772mm -6mm
Tire to Pedal Spindle	— 170 mm cranks	68mm 170 mm cranks
Pedal Spindle to Ground Clearance	— 170 mm cranks	103mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	32mm +7mm
Tire Width Max	32mm	—
Tire Outer Diameter	672mm	686mm +14mm
Bike Length with Tires	1655mm	1668mm +13mm
Crank Length	170mm	170mm +0mm
Handlebar Width	400mm	380mm -20mm
Stem Length	80mm	110mm +30mm
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