Compare: 2026 TanTan Cycling (Seraph) Gr209 Base 55 vs 2026 Factor Bikes Elara Base 58

Insights

Somewhat aggressive stack and reach vs trend of all-road/gravel bikes

Very aggressive stack and reach vs trend of all-road/gravel bikes

Design deviates from other sizes of Factor Bikes Elara

Stack	608mm	605mm -3mm
Reach	404mm	417mm +13mm
Stack to Reach Ratio	1.5:1	1.45:1
Seat Tube Length, C-T	550mm	—
Seat Tube Length, Unknown	—	523mm
Top Tube Length, Effective/Horizontal Center	583mm	—
Top Tube Length, Unknown	—	590mm
Top Tube Slope	8.2deg	10.3deg +2.1deg
Head Tube Angle	71.7deg	72.3deg +0.6deg
Seat Tube Angle	73.5deg	74deg +0.5deg
Head Tube Length	80mm	155.7mm +75.7mm
Bottom Bracket Drop	80mm	80mm +0mm
Bottom Bracket Height	276mm	233.1mm -42.9mm
Chainstay Length	426mm	425mm -1mm
Chainstay Length Horizontal	418.4mm	417.4mm -1mm
Front-Center	638mm	638mm +0mm
Front-Center Horizontal	633.6mm	637.6mm +4mm
Wheelbase	1052mm	1055mm +3mm
Fork Offset/Rake	55mm	51mm -4mm
Fork Length, Unknown	397mm	395mm -2mm
Trail	59.8mm mid/neutral	46.4mm -13.4mm mid/neutral
Mechanical Trail	56.8mm	44.2mm -12.6mm
Wheel Flop	17.8mm	13.4mm -4.4mm
Tire to Pedal Spindle	109.5mm 172.5 mm cranks	154.9mm +45.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	103.5mm 172.5 mm cranks	63.1mm -40.4mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	45mm	2.1mm -42.9mm
Tire Width Max	50mm	—
Tire Outer Diameter	712mm	626.2mm -85.8mm
Bike Length with Tires	1764mm	1681.2mm -82.8mm
Crank Length	172.5mm	—
Handlebar Width	440mm	—
Stem Length	80mm	—
Suspension Type	Rigid, 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