	48	50	52	54	56	58	60
Stack	531mm	545mm	566mm	575mm	584mm	603mm	634mm
Reach	365mm	371mm	371mm	373mm	385mm	394mm	400mm
Stack to Reach Ratio	1.45:1	1.47:1	1.53:1	1.54:1	1.52:1	1.53:1	1.59:1
Seat Tube Length, C-T	480mm	500mm	520mm	540mm	580mm	580mm	600mm
Top Tube Length, Actual C-C	512mm	522mm	533mm	543mm	564mm	579mm	600mm
Top Tube Slope	7.9deg	7.1deg	7.3deg	6.2deg	3deg	4.9deg	6.1deg
Head Tube Angle	70.5deg	70.5deg	71deg	71deg	71deg	71deg	71.5deg
Seat Tube Angle	74.5deg	74.5deg	74deg	73.5deg	73deg	73deg	72.5deg
Head Tube Length	90mm	105mm	125mm	135mm	145mm	165mm	195mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm	75mm	75mm	75mm
Bottom Bracket Height	286mm	286mm	286mm	286mm	286mm	286mm	286mm
Chainstay Length	435mm	435mm	435mm	435mm	435mm	435mm	440mm
Chainstay Length Horizontal	428.5mm	428.5mm	428.5mm	428.5mm	428.5mm	428.5mm	433.6mm
Front-Center	587.3mm	598.2mm	598.2mm	606.2mm	621.1mm	637mm	646.8mm
Front-Center Horizontal	582.5mm	593.5mm	593.5mm	601.5mm	616.5mm	632.5mm	642.4mm
Wheelbase	1011mm	1022mm	1022mm	1030mm	1045mm	1061mm	1076mm
Fork Offset/Rake	55mm	55mm	55mm	55mm	55mm	55mm	55mm
Trail	69.5mm high	69.5mm high	66.1mm high	66.1mm high	66.1mm high	66.1mm high	62.8mm mid/neutral
Mechanical Trail	65.5mm	65.5mm	62.5mm	62.5mm	62.5mm	62.5mm	59.6mm
Wheel Flop	21.9mm	21.9mm	20.4mm	20.4mm	20.4mm	20.4mm	18.9mm
Tire to Pedal Spindle	56.3mm 170 mm cranks	67.2mm 170 mm cranks	67.2mm 170 mm cranks	75.2mm 170 mm cranks	90.1mm 170 mm cranks	106mm 170 mm cranks	115.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	116mm 170 mm cranks	116mm 170 mm cranks	116mm 170 mm cranks	116mm 170 mm cranks	116mm 170 mm cranks	116mm 170 mm cranks	116mm 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.

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2026 VOID Machinist Base

Geometry