2023 Vielo Sports R+1 Alto

	XS	S	M	L	XL
Stack	505.2mm	523.7mm	543.9mm	566.4mm	586.4mm
Reach	371.5mm	387.7mm	401.1mm	415.5mm	428mm
Stack to Reach Ratio	1.36:1	1.35:1	1.36:1	1.36:1	1.37:1
Seat Tube Length, C-T	420mm	455mm	490mm	520mm	550mm
Top Tube Length, Effective/Horizontal HT Top	505mm	530mm	555mm	580mm	605mm
Top Tube Slope	11.7deg	9.5deg	7.7deg	6.8deg	5.8deg
Head Tube Angle	70.25deg	70.75deg	71.25deg	71.5deg	71.75deg
Seat Tube Angle	75.25deg	74.75deg	74.25deg	73.75deg	73.25deg
Head Tube Length	100mm	120mm	142.5mm	165mm	187.5mm
Bottom Bracket Drop	77mm	74.5mm	72mm	72mm	69.5mm
Bottom Bracket Height	264mm	266.5mm	269mm	269mm	271.5mm
Chainstay Length Horizontal	400mm	400mm	400mm	400mm	400mm
Front-Center	580.7mm	598.6mm	615.6mm	634.5mm	651.1mm
Front-Center Horizontal	575.6mm	593.9mm	611.4mm	630.4mm	647.4mm
Wheelbase	975.6mm	993.9mm	1011.4mm	1030.4mm	1047.4mm
Fork Offset/Rake	47mm	47mm	47mm	47mm	47mm
Fork Length (Axle-To-Crown)	375mm	375mm	375mm	375mm	375mm
Trail	72.5mm high	69.3mm high	66.1mm high	64.5mm mid/neutral	63mm mid/neutral
Mechanical Trail	68.2mm	65.4mm	62.6mm	61.2mm	59.8mm
Wheel Flop	23.1mm	21.6mm	20.1mm	19.4mm	18.7mm
Tire to Pedal Spindle	69.7mm 170 mm cranks	87.6mm 170 mm cranks	104.6mm 170 mm cranks	123.5mm 170 mm cranks	140.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	94mm 170 mm cranks	96.5mm 170 mm cranks	99mm 170 mm cranks	99mm 170 mm cranks	101.5mm 170 mm cranks

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.

Category Trend

Source:https://www.vielo.cc/pages/r1-specifications

Geometry