2018 Crust Bikes Bombora Base M

Build

650B/27.5 in × 2.3 in

Insights

Average stack and reach vs trend of all-road/gravel bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
576mm
Reach
382mm
Stack to Reach Ratio
1.51:1
Seat Tube Length, C-T
543mm
Seat Tube Length, C-C
494mm
Top Tube Length, Effective/Horizontal Center
560mm
Top Tube Length, Actual C-C
545mm
Top Tube Slope
5.7deg
Head Tube Angle
71deg
Seat Tube Angle
73deg
Head Tube Length
153mm
Bottom Bracket Drop
64mm
Bottom Bracket Height
286.4mm
Chainstay Length
425mm
Chainstay Length Horizontal
420.2mm
Front-Center
606.2mm
Front-Center Horizontal
602.9mm
Wheelbase
1023mm
Fork Offset/Rake
48mm
Trail
69.9mm
high
Mechanical Trail
66.1mm
Wheel Flop
21.5mm
Standover Height
804mm
Tire to Pedal Spindle Distance
With 170 mm cranks
85.8mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
116.4mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
2.3in
Tire Outer Diameter
700.8mm
Bike Length with Tires
1723.8mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Disc
Source:https://crustbikes.com/products/bombora/