Compare: 2026 Sava Gelaro S4 GRX400 Carbon Gravel Bike US Base 470(XS) vs 2022 TanTan Cycling (Seraph) GR047 Base S

Insights

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

Design deviates from other sizes of TanTan Cycling (Seraph) GR047

Stack	533.6mm	556mm +22.4mm
Reach	360mm	372mm +12mm
Stack to Reach Ratio	1.48:1	1.49:1
Seat Tube Length, C-T	—	430mm
Seat Tube Length, Unknown	470mm	—
Top Tube Length, Effective/Horizontal HT Top	—	528mm
Top Tube Length, Effective/Horizontal Unknown	512.4mm	—
Top Tube Slope	9.5deg	16.2deg +6.7deg
Head Tube Angle	70.3deg	70.5deg +0.2deg
Seat Tube Angle	74deg	74.3deg +0.3deg
Head Tube Length	110mm	125mm +15mm
Bottom Bracket Drop	75mm	76mm +1mm
Bottom Bracket Height	276mm	280mm +4mm
Chainstay Length	430mm	430mm +0mm
Chainstay Length Horizontal	423.4mm	423.2mm -0.2mm
Front-Center	582.2mm	600mm +17.8mm
Front-Center Horizontal	577.3mm	595.2mm +17.9mm
Wheelbase	1000.7mm	1018.4mm +17.7mm
Fork Offset/Rake	50mm	50mm +0mm
Fork Length, Unknown	394mm	—
Trail	72.6mm high	73mm +0.4mm high
Mechanical Trail	68.3mm	68.8mm +0.5mm
Wheel Flop	23mm	23mm +0mm
Standover Height	769.8mm	—
Tire to Pedal Spindle	61.2mm 170 mm cranks	74mm +12.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	106mm 170 mm cranks	110mm +4mm 170 mm cranks

Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	40mm	45mm +5mm
Tire Width Max	—	47mm
Tire Outer Diameter	702mm	712mm +10mm
Bike Length with Tires	1702.7mm	1730.4mm +27.7mm
Crank Length	—	170mm
Handlebar Width	—	420mm
Stem Length	—	100mm
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	Unknown	Disc

Actions	Collection I've Ridden	Collection I've Ridden
Source	savadeck-bike.com	www.seraphbikes.com
Brand	Sava	TanTan Cycling (Seraph)
Bike	2026 Gelaro S4 GRX400 Carbon Gravel Bike US Base	2022 GR047 Base
Size	470(XS)	S
Category	All-road/Gravel	All-road/Gravel