1989 Trek Bikes 330 Base

	50cm	52cm	54cm	56cm	58cm	60cm	62cm
Seat Tube Length, C-T	500mm	520mm	540mm	560mm	580mm	600mm	620mm
Top Tube Length, Actual C-C	530mm	530mm	550mm	550mm	565mm	565mm	585mm
Head Tube Angle	73deg	73deg	73.5deg	73.5deg	73.5deg	73.5deg	74deg
Seat Tube Angle	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg
Bottom Bracket Drop	72mm	72mm	72mm	72mm	72mm	72mm	72mm
Bottom Bracket Height	264mm	264mm	264mm	264mm	264mm	264mm	264mm
Chainstay Length	415mm	415mm	415mm	415mm	415mm	415mm	415mm
Chainstay Length Horizontal	408.7mm	408.7mm	408.7mm	408.7mm	408.7mm	408.7mm	408.7mm
Front-Center	563.9mm	563.9mm	578.8mm	578.8mm	598.6mm	598.6mm	603.6mm
Front-Center Horizontal	559.3mm	559.3mm	574.3mm	574.3mm	594.3mm	594.3mm	599.3mm
Wheelbase	968mm	968mm	983mm	983mm	1003mm	1003mm	1008mm
Fork Offset/Rake	42mm	42mm	42mm	42mm	42mm	42mm	42mm
Trail	58.8mm mid/neutral	58.8mm mid/neutral	55.7mm mid/neutral	55.7mm mid/neutral	55.7mm mid/neutral	55.7mm mid/neutral	52.7mm mid/neutral
Mechanical Trail	56.2mm	56.2mm	53.4mm	53.4mm	53.4mm	53.4mm	50.6mm
Wheel Flop	16.4mm	16.4mm	15.2mm	15.2mm	15.2mm	15.2mm	14mm
Tire to Pedal Spindle	57.9mm 170 mm cranks	57.9mm 170 mm cranks	72.8mm 170 mm cranks	72.8mm 170 mm cranks	92.6mm 170 mm cranks	92.6mm 170 mm cranks	97.6mm 170 mm cranks
Pedal Spindle to Ground Clearance	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks	94mm 170 mm cranks

Source:https://www.smontanaro.net/vintage-trek/Trekpromoa.htm

Geometry