Compare: 2025 Alvas DA Series DA54 M vs 2023 BXT BX-Road-145 Pro-145 54

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

Stack	539mm	541mm +2mm
Reach	390mm	384.8mm -5.2mm
Stack to Reach Ratio	1.38:1	1.41:1
Seat Tube Length, C-T	—	500mm
Seat Tube Length, C-TTT	503mm	—
Top Tube Length, Effective/Horizontal Center	—	543mm
Top Tube Length, Effective/Horizontal HT Top	549mm	—
Top Tube Slope	—	6.6deg
Head Tube Angle	72.75deg	73deg +0.25deg
Seat Tube Angle	—	73.7deg
Effective Seat Tube Angle, Seat Tube Top	73.5deg	—
Head Tube Length	123mm	131mm +8mm
Bottom Bracket Drop	—	70mm
Bottom Bracket Height	—	269mm
Chainstay Length	410mm	410mm +0mm
Chainstay Length Horizontal	—	404mm
Front-Center	—	580mm
Front-Center Horizontal	—	575.8mm
Wheelbase	983mm	979.8mm -3.2mm
Fork Offset/Rake	42mm	45mm +3mm
Fork Length (Axle-To-Crown)	—	375mm
Trail	60.4mm mid/neutral	56.6mm -3.8mm mid/neutral
Mechanical Trail	57.6mm	54.1mm -3.5mm
Wheel Flop	17.1mm	15.8mm -1.3mm
Standover Height	778mm	—
Tire to Pedal Spindle	— 170 mm cranks	71mm 170 mm cranks
Pedal Spindle to Ground Clearance	— 170 mm cranks	99mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	28mm +3mm
Tire Width Max	32mm	32mm +0mm
Tire Outer Diameter	672mm	678mm +6mm
Bike Length with Tires	1655mm	1657.8mm +2.8mm
Crank Length	170mm	—
Handlebar Width	400mm	—
Stem Length	80mm	—
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