2024 Bona Bikes G31A Base 540 (XL)

Build

700C/29 in × 45 mm

Insights

Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Bona Bikes G31A

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
605mm
Reach
390mm
Stack to Reach Ratio
1.55:1
Seat Tube Length, C-T
540mm
Top Tube Length, Effective/Horizontal Unknown
575mm
Top Tube Slope
9.2deg
Head Tube Angle
72deg
Seat Tube Angle
73deg
Head Tube Length
170mm
Bottom Bracket Drop
72mm
Bottom Bracket Height
284mm
Chainstay Length
440mm
Chainstay Length Horizontal
434.1mm
Front-Center
615mm
Front-Center Horizontal
611.9mm
Wheelbase
1046mm
Fork Offset/Rake
45mm
Fork Length, Unknown
407mm
Trail
68.4mm
high
Mechanical Trail
65mm
Wheel Flop
20.1mm
Standover Height
771mm
Tire to Pedal Spindle Distance
With 170 mm cranks
89mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
114mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
45mm
Tire Outer Diameter
712mm
Bike Length with Tires
1758mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Titanium
Fork Material
Unknown
Brake Type
Unknown

Published Sizing Recommendations

Height
178 cm
to
188 cm
Source:http://www.bonabike.com/goods/Gr9-Titanium-Gravel-Road-Bike-Frame-700CX45C