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

Insights

Average stack and reach vs trend of performance road bikes

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Alvas DA Series

Stack	541mm	539mm -2mm
Reach	384.8mm	390mm +5.2mm
Stack to Reach Ratio	1.41:1	1.38:1
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	73deg	72.75deg -0.25deg
Seat Tube Angle	73.7deg	—
Effective Seat Tube Angle, Seat Tube Top	—	73.5deg
Head Tube Length	131mm	123mm -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	979.8mm	983mm +3.2mm
Fork Offset/Rake	45mm	42mm -3mm
Fork Length (Axle-To-Crown)	375mm	—
Trail	56.6mm mid/neutral	60.4mm +3.8mm mid/neutral
Mechanical Trail	54.1mm	57.6mm +3.5mm
Wheel Flop	15.8mm	17.1mm +1.3mm
Standover Height	—	778mm
Tire to Pedal Spindle	71mm 170 mm cranks	— 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	— 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	25mm -3mm
Tire Width Max	32mm	32mm +0mm
Tire Outer Diameter	678mm	672mm -6mm
Bike Length with Tires	1657.8mm	1655mm -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