2023 GT Bicycles Grade Expert Base

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

Geometry

55
Stack
590mm
Reach
394mm
Stack to Reach Ratio
1.5:1
Seat Tube Length, Unknown
531mm
Top Tube Length, Effective/Horizontal Unknown
574mm
Top Tube Slope
8.3deg
Head Tube Angle
72.3deg
Seat Tube Angle
74.5deg
Head Tube Length
16mm
Bottom Bracket Drop
73mm
Bottom Bracket Height
275mm
Chainstay Length
445mm
Chainstay Length Horizontal
439mm
Front-Center
62.1mm
Fork Offset/Rake
55mm
Trail
53.3mm
mid/​neutral
Mechanical Trail
50.8mm
Wheel Flop
15.5mm
Standover Height
791mm
Tire to Pedal Spindle
-455.9mm
170 mm cranks
Pedal Spindle to Ground Clearance
105mm
170 mm cranks

Base Build

55
Wheel Size
700C/29 in
622 mm BSD
Tire Width
37mm
Tire Outer Diameter
696mm

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/media/catalog/product/g/2/g21_geo_grade.jpg