2024 TWITTER Bikes Gravel V3 Base

	xs 45	s 48	m 51	l 54
Stack	516mm	534mm	550mm	572mm
Reach	365mm	375mm	385mm	395mm
Stack to Reach Ratio	1.41:1	1.42:1	1.43:1	1.45:1
Seat Tube Length, C-T	459mm	480mm	510mm	540mm
Top Tube Length, Effective/Horizontal Center	510mm	525mm	540mm	555mm
Top Tube Slope	8.6deg	8.1deg	6.4deg	5.5deg
Head Tube Angle	70deg	71deg	71.5deg	72deg
Seat Tube Angle	74.3deg	74.3deg	74.3deg	74.3deg
Head Tube Length	100mm	114mm	130mm	150mm
Bottom Bracket Drop	74mm	74mm	74mm	74mm
Bottom Bracket Height	275mm	275mm	275mm	275mm
Chainstay Length	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	418.5mm	418.5mm	418.5mm	418.5mm
Front-Center	589mm	596mm	607mm	618mm
Front-Center Horizontal	584.3mm	591.4mm	602.5mm	613.6mm
Wheelbase	1002.8mm	1009.9mm	1021mm	1032.1mm
Fork Offset/Rake	55mm	55mm	55mm	55mm
Trail	68.5mm high	62mm mid/neutral	58.8mm mid/neutral	55.6mm mid/neutral
Mechanical Trail	64.4mm	58.6mm	55.7mm	52.9mm
Wheel Flop	22mm	19.1mm	17.7mm	16.3mm
Tire to Pedal Spindle	70mm 170 mm cranks	77mm 170 mm cranks	88mm 170 mm cranks	99mm 170 mm cranks
Pedal Spindle to Ground Clearance	105mm 170 mm cranks	105mm 170 mm cranks	105mm 170 mm cranks	105mm 170 mm cranks

Published Sizing Recommendations

Height

160 cm

170 cm

180 cm

190 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.

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Source:https://ir.ozone.ru/s3/multimedia-0/wc1000/6843766824.jpg