Compare: 2021 VeloBuild 177 Base XL vs 2025 Giant Bicycles TCR Advanced Pro 0 Base XL

Insights

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of VeloBuild 177

Somewhat aggressive stack and reach vs trend of performance road bikes

Design deviates from other sizes of Giant Bicycles TCR Advanced Pro 0

Stack	576mm	596mm +20mm
Reach	403mm	412mm +9mm
Stack to Reach Ratio	1.43:1	1.45:1
Seat Tube Length, C-T	530mm	560mm +30mm
Top Tube Length, Effective/Horizontal Center	580mm	—
Top Tube Length, Effective/Horizontal Unknown	—	600mm
Top Tube Slope	7.1deg	6.1deg -1deg
Head Tube Angle	73.3deg	72.5deg -0.8deg
Seat Tube Angle	73deg	72.5deg -0.5deg
Head Tube Length	175mm	200mm +25mm
Bottom Bracket Drop	70mm	67mm -3mm
Bottom Bracket Height	266mm	269mm +3mm
Chainstay Length	410mm	405mm -5mm
Chainstay Length Horizontal	404mm	399.4mm -4.6mm
Front-Center	607mm	624.2mm +17.2mm
Front-Center Horizontal	603mm	620.6mm +17.6mm
Wheelbase	1006.9mm	1020mm +13.1mm
Fork Offset/Rake	45mm	45mm +0mm
Trail	53.8mm mid/neutral	58.8mm +5mm mid/neutral
Mechanical Trail	51.6mm	56mm +4.4mm
Wheel Flop	14.8mm	16.9mm +2.1mm
Standover Height	—	822mm
Tire to Pedal Spindle	101mm 170 mm cranks	113.2mm +12.2mm 175 mm cranks
Pedal Spindle to Ground Clearance	96mm 170 mm cranks	94mm -2mm 175 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	25mm +0mm
Tire Outer Diameter	672mm	672mm +0mm
Bike Length with Tires	1678.9mm	1692mm +13.1mm
Crank Length	—	175mm
Handlebar Width	—	440mm
Stem Length	—	120mm
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