Name: 2025 Apex Onyx GX Carbon
Brand: Apex

	49	52	54	56	58
Stack	536mm	556mm	572mm	588mm	603mm
Reach	366mm	375mm	384mm	393mm	402mm
Stack to Reach Ratio	1.46:1	1.48:1	1.49:1	1.5:1	1.5:1
Seat Tube Length, C-T	470mm	500mm	520mm	540mm	560mm
Seat Tube Length, C-C	430mm	460mm	480mm	500mm	520mm
Top Tube Length, Effective/Horizontal HT Top	515mm	535mm	553mm	567mm	580mm
Top Tube Slope	9.6deg	8.4deg	7.9deg	7.3deg	6.7deg
Head Tube Angle	70.5deg	71deg	71.5deg	72deg	72deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73.5deg	73.5deg
Head Tube Length	105mm	125mm	140mm	155mm	170mm
Bottom Bracket Drop	76mm	76mm	76mm	76mm	76mm
Bottom Bracket Height	280mm	280mm	280mm	280mm	280mm
Chainstay Length	435mm	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	428.3mm	428.3mm	428.3mm	428.3mm	428.3mm
Front-Center	587mm	598mm	607mm	617mm	630mm
Front-Center Horizontal	581.7mm	593.7mm	602.7mm	611.7mm	625.7mm
Wheelbase	1010mm	1022mm	1031mm	1040mm	1054mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm
Fork Length (Axle-To-Crown)	399mm	399mm	399mm	399mm	399mm
Trail	73mm high	69.7mm high	66.4mm high	63.1mm mid/neutral	63.1mm mid/neutral
Mechanical Trail	68.8mm	65.9mm	63mm	60mm	60mm
Wheel Flop	23mm	21.5mm	20mm	18.5mm	18.5mm
Tire to Pedal Spindle	61mm 170 mm cranks	72mm 170 mm cranks	81mm 170 mm cranks	91mm 170 mm cranks	104mm 170 mm cranks
Pedal Spindle to Ground Clearance	110mm 170 mm cranks	110mm 170 mm cranks	110mm 170 mm cranks	110mm 170 mm cranks	110mm 170 mm cranks

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.

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2025 Apex Onyx GX Carbon

Geometry