2025 Apex Onyx GX Carbon 56

Build

700C/29 in × 45 mm

Insights

Somewhat upright stack and reach vs trend of progressive gravel bikes
Design deviates from other sizes of Apex Onyx GX

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
588mm
Reach
393mm
Stack to Reach Ratio
1.5:1
Seat Tube Length, C-T
540mm
Seat Tube Length, C-C
500mm
Top Tube Length, Effective/Horizontal HT Top
567mm
Top Tube Slope
7.3deg
Head Tube Angle
72deg
Seat Tube Angle
73.5deg
Head Tube Length
155mm
Bottom Bracket Drop
76mm
Bottom Bracket Height
280mm
Chainstay Length
435mm
Chainstay Length Horizontal
428.3mm
Front-Center
617mm
Front-Center Horizontal
611.7mm
Wheelbase
1040mm
Fork Offset/Rake
50mm
Fork Length (Axle-To-Crown)
399mm
Trail
63.1mm
mid/​neutral
Mechanical Trail
60mm
Wheel Flop
18.5mm
Tire to Pedal Spindle Distance
With 170 mm cranks
91mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
110mm

Carbon Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
45mm
Tire Outer Diameter
712mm
Bike Length with Tires
1752mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Carbon/Composite
Fork Material
Carbon/Composite
Brake Type
Disc