Compare: 2026 Factor Bikes OSTRO VAM Base 45 vs 2023 Bigrock Sohtea Base XS 49

Insights

Somewhat upright stack and reach vs trend of performance road bikes

Design deviates from other sizes of Factor Bikes OSTRO VAM

Average stack and reach vs trend of performance road bikes

Design deviates from other sizes of Bigrock Sohtea

Stack	502mm	513mm +11mm
Reach	360mm	375mm +15mm
Stack to Reach Ratio	1.39:1	1.37:1
Seat Tube Length, C-T	—	431mm
Seat Tube Length, Unknown	432mm	—
Top Tube Length, Effective/Horizontal Center	—	508mm
Top Tube Slope	10.3deg	11.2deg +0.9deg
Head Tube Angle	71.1deg	71.75deg +0.65deg
Seat Tube Angle	73.5deg	75.5deg +2deg
Head Tube Length	—	109mm
Bottom Bracket Drop	72mm	74mm +2mm
Bottom Bracket Height	269mm	267mm -2mm
Chainstay Length	405mm	410mm +5mm
Chainstay Length Horizontal	398.6mm	403.3mm +4.7mm
Front-Center	576mm	574mm -2mm
Front-Center Horizontal	571.5mm	569.7mm -1.8mm
Wheelbase	970mm	973mm +3mm
Fork Offset/Rake	57mm	47mm -10mm
Fork Length, Unknown	—	369mm
Trail	56.5mm mid/neutral	63mm +6.5mm mid/neutral
Mechanical Trail	53.5mm	59.8mm +6.3mm
Wheel Flop	17.3mm	18.7mm +1.4mm
Standover Height	726mm	—
Tire to Pedal Spindle	65mm 170 mm cranks	63mm -2mm 170 mm cranks
Pedal Spindle to Ground Clearance	99mm 170 mm cranks	97mm -2mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	30mm	30mm +0mm
Tire Outer Diameter	682mm	682mm +0mm
Bike Length with Tires	1652mm	1655mm +3mm
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

Actions	Collection I've Ridden	Collection I've Ridden
Source	https://factorbikes.com/bikes/ostro-vam	http://43.136.68.97:85/productsDetails/?id=64712150b2601e7659887d38&category=
Brand	Factor Bikes	Bigrock
Bike	2026 OSTRO VAM Base	2023 Sohtea Base
Size	45	XS 49
Category	Performance Road	Performance Road