2014 GT Bicycles Eightball Base

	XXS	XS	S	M	L	XL
Seat Tube Length, C-T	480mm	500mm	520mm	540mm	560mm	580mm
Top Tube Length, Effective/Horizontal Unknown	494mm	509mm	528mm	546mm	567mm	587mm
Head Tube Angle	71deg	72deg	73deg	73deg	74deg	74deg
Seat Tube Angle	76.5deg	76deg	75deg	75deg	74deg	74deg
Head Tube Length	90mm	100mm	110mm	120mm	140mm	160mm
Bottom Bracket Drop	63mm	63mm	60mm	60mm	55mm	55mm
Bottom Bracket Height	283mm	283mm	286mm	286mm	291mm	291mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	420.3mm	420.3mm	420.7mm	420.7mm	421.4mm	421.4mm
Front-Center	570.2mm	573.2mm	576.4mm	594.3mm	598.1mm	618mm
Front-Center Horizontal	570mm	573mm	576mm	595mm	598mm	618mm
Wheelbase	987mm	990mm	994mm	1012mm	1017mm	1037mm
Fork Offset/Rake	43mm	43mm	43mm	43mm	43mm	43mm
Trail	73.7mm high	67.2mm high	60.8mm mid/neutral	60.8mm mid/neutral	54.5mm mid/neutral	54.5mm mid/neutral
Mechanical Trail	69.7mm	63.9mm	58.2mm	58.2mm	52.4mm	52.4mm
Wheel Flop	22.7mm	19.8mm	17mm	17mm	14.4mm	14.4mm
Standover Height	721mm	739mm	758mm	775mm	798mm	817mm
Tire to Pedal Spindle	54.2mm 170 mm cranks	57.2mm 170 mm cranks	60.4mm 170 mm cranks	78.3mm 170 mm cranks	82.1mm 170 mm cranks	102mm 170 mm cranks
Pedal Spindle to Ground Clearance	113mm 170 mm cranks	113mm 170 mm cranks	116mm 170 mm cranks	116mm 170 mm cranks	121mm 170 mm cranks	121mm 170 mm cranks

	XXS	XS	S	M	L	XL
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	35mm	35mm	35mm	35mm	35mm	35mm
Tire Outer Diameter	692mm	692mm	692mm	692mm	692mm	692mm
Bike Length with Tires	1679mm	1682mm	1686mm	1704mm	1709mm	1729mm

Source:https://www.sterba-kola.cz/media/downloads/gt/geometry-gt.pdf

Geometry