2021 GT Bicycles Grade Carbon (70mm Offset)

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Carbon/Composite
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

48
51
55
58
61
Stack
546mm
568mm
590mm
612mm
634mm
Reach
378mm
385mm
394mm
400mm
408mm
Stack to Reach Ratio
1.44:1
1.48:1
1.5:1
1.53:1
1.55:1
Seat Tube Length, C-T
457mm
494mm
531mm
568mm
605mm
Top Tube Length, Effective/Horizontal HT Top
545mm
559mm
574mm
587mm
602mm
Top Tube Slope
12deg
10.2deg
8.5deg
6.9deg
5.4deg
Head Tube Angle
70.5deg
70.5deg
72.3deg
72.3deg
72.3deg
Seat Tube Angle
73deg
73deg
73deg
73deg
73deg
Head Tube Length
119mm
145mm
162mm
187mm
210mm
Bottom Bracket Drop
75mm
73mm
73mm
70mm
70mm
Bottom Bracket Height
276mm
278mm
278mm
281mm
281mm
Chainstay Length
430mm
430mm
430mm
430mm
430mm
Chainstay Length Horizontal
423.4mm
423.8mm
423.8mm
424.3mm
424.3mm
Front-Center
608mm
623mm
623mm
635mm
650mm
Front-Center Horizontal
603.6mm
619.2mm
619.2mm
630.7mm
645.7mm
Wheelbase
1027mm
1043mm
1043mm
1055mm
1070mm
Fork Offset/Rake
70mm
70mm
70mm
70mm
70mm
Trail
50mm
mid/​neutral
50mm
mid/​neutral
38.5mm
low
38.5mm
low
38.5mm
low
Mechanical Trail
47.2mm
47.2mm
36.7mm
36.7mm
36.7mm
Wheel Flop
15.7mm
15.7mm
11.2mm
11.2mm
11.2mm
Standover Height
731mm
760mm
791mm
824mm
851mm
Tire to Pedal Spindle
87mm
170 mm cranks
102mm
170 mm cranks
102mm
170 mm cranks
114mm
170 mm cranks
129mm
170 mm cranks
Pedal Spindle to Ground Clearance
106mm
170 mm cranks
108mm
170 mm cranks
108mm
170 mm cranks
111mm
170 mm cranks
111mm
170 mm cranks

Carbon (70mm Offset) Build

48
51
55
58
61
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
Tire Width
40mm
40mm
40mm
40mm
40mm
Tire Width Max
42mm
42mm
42mm
42mm
42mm
Tire Outer Diameter
702mm
702mm
702mm
702mm
702mm
Bike Length with Tires
1729mm
1745mm
1745mm
1757mm
1772mm

Stack and Reach vs. Category Trend

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.

Learn more about the Upright/Aggressive Scale
Category Trend
All-road/Gravel
Source:https://www.gtbicycles.com/gbr_en/grade-carbon-elite-3080