	470(XS)	490(S)	510(M)	535(L)	550(XL)	580(XXL)
Stack	533.6mm	561.8mm	580.6mm	608.9mm	627.7mm	637.1mm
Reach	360mm	369mm	380mm	390mm	400mm	410mm
Stack to Reach Ratio	1.48:1	1.52:1	1.53:1	1.56:1	1.57:1	1.55:1
Seat Tube Length, Unknown	470mm	480mm	510mm	550mm	580mm	580mm
Top Tube Length, Effective/Horizontal Unknown	512.4mm	530.1mm	557.6mm	576.2mm	591.9mm	604.8mm
Top Tube Slope	9.5deg	11.3deg	10deg	8.6deg	7.3deg	8.1deg
Head Tube Angle	70.3deg	70.3deg	70.3deg	70.3deg	70.3deg	70.3deg
Seat Tube Angle	74deg	74deg	73deg	73deg	73deg	73deg
Head Tube Length	110mm	140mm	160mm	190mm	210mm	220mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm	75mm	75mm
Bottom Bracket Height	276mm	276mm	276mm	276mm	276mm	276mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm
Front-Center	582.2mm	601.1mm	618.1mm	638.1mm	655.8mm	664.4mm
Front-Center Horizontal	577.3mm	596.4mm	614.2mm	634.3mm	651mm	664.4mm
Wheelbase	1000.7mm	1019.8mm	1037.6mm	1057.7mm	1074.4mm	1087.8mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm	50mm
Fork Length, Unknown	394mm	394mm	394mm	394mm	394mm	394mm
Trail	72.6mm high	72.6mm high	72.6mm high	72.6mm high	72.6mm high	72.6mm high
Mechanical Trail	68.3mm	68.3mm	68.3mm	68.3mm	68.3mm	68.3mm
Wheel Flop	23mm	23mm	23mm	23mm	23mm	23mm
Standover Height	769.8mm	792.3mm	810.6mm	838mm	851.9mm	869.8mm
Tire to Pedal Spindle	61.2mm 170 mm cranks	80.1mm 170 mm cranks	97.1mm 170 mm cranks	117.1mm 170 mm cranks	134.8mm 170 mm cranks	143.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks

	470(XS)	490(S)	510(M)	535(L)	550(XL)	580(XXL)
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	40mm	40mm	40mm	40mm	40mm	40mm
Tire Outer Diameter	702mm	702mm	702mm	702mm	702mm	702mm
Bike Length with Tires	1702.7mm	1721.8mm	1739.6mm	1759.7mm	1776.4mm	1789.8mm

Published Sizing Recommendations

Height

155 cm

166 cm

175 cm

180 cm

186 cm

192 cm

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale

Category Trend

All-road/Gravel

Source:https://savadeck-bike.com/products/sava-gelaro-s4-grx400-carbon-gravel-bike-us?variant=44352879952011

Suggest Bike Edit

2026 Sava Gelaro S4 GRX400 Carbon Gravel Bike US Base

Geometry

Base Build

Published Sizing Recommendations

Stack and Reach vs. Category Trend