2021 Vassago Bicycles Optimus Ti Base

	S	M	L	XL
Stack	611mm	621mm	640mm	658mm
Reach	430mm	453mm	478mm	495mm
Stack to Reach Ratio	1.42:1	1.37:1	1.34:1	1.33:1
Seat Tube Length, Unknown	406mm	431mm	483mm	533mm
Top Tube Length, Effective/Horizontal Unknown	600mm	625mm	655mm	675mm
Top Tube Slope	22.2deg	19.9deg	16deg	12.8deg
Head Tube Angle	67.5deg	67.5deg	67.5deg	67.5deg
Seat Tube Angle	74.2deg	74.2deg	74.2deg	74.2deg
Head Tube Length	90mm	100mm	120mm	140mm
Bottom Bracket Drop	60mm	60mm	60mm	60mm
Bottom Bracket Height	314.5mm	314.5mm	314.5mm	314.5mm
Chainstay Length	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	425.8mm	425.8mm	425.8mm	425.8mm
Front-Center	691.8mm	717.7mm	748.6mm	771.5mm
Front-Center Horizontal	689.2mm	715.2mm	746.2mm	769.2mm
Wheelbase	1115mm	1141mm	1172mm	1195mm
Fork Offset/Rake	44mm	44mm	44mm	44mm
Fork Length, Unknown	530mm	530mm	530mm	530mm
Trail	107.5mm very high	107.5mm very high	107.5mm very high	107.5mm very high
Mechanical Trail	99.3mm	99.3mm	99.3mm	99.3mm
Wheel Flop	38mm	38mm	38mm	38mm
Tire to Pedal Spindle	147.3mm 170 mm cranks	173.2mm 170 mm cranks	204.1mm 170 mm cranks	227mm 170 mm cranks
Pedal Spindle to Ground Clearance	144.5mm 170 mm cranks	144.5mm 170 mm cranks	144.5mm 170 mm cranks	144.5mm 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.vassagocycles.com/collections/frames/products/optimus-ti-frame?variant=37812710834376

Geometry