Name: 2026 Pinnacle cerium Base
Brand: Pinnacle

	S	M	L	XL
Stack	568mm	594mm	619mm	646mm
Reach	385mm	393mm	400mm	410mm
Stack to Reach Ratio	1.48:1	1.51:1	1.55:1	1.58:1
Seat Tube Length, C-T	406mm	457mm	508mm	559mm
Top Tube Length, Effective/Horizontal Center	543mm	563mm	583mm	614mm
Top Tube Slope	19.7deg	16.6deg	13.6deg	11.1deg
Head Tube Angle	70.5deg	71deg	71.5deg	72.5deg
Seat Tube Angle	74.5deg	74deg	73.5deg	72.5deg
Head Tube Length	140mm	165mm	190mm	215mm
Bottom Bracket Drop	65mm	65mm	65mm	65mm
Bottom Bracket Height	291mm	291mm	291mm	291mm
Chainstay Length	442mm	442mm	442mm	442mm
Chainstay Length Horizontal	437.2mm	437.2mm	437.2mm	437.2mm
Front-Center	614mm	626mm	636mm	644mm
Front-Center Horizontal	610.8mm	622.8mm	632.8mm	641.8mm
Wheelbase	1048mm	1060mm	1070mm	1079mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Fork Length (On-Axis)	395mm	395mm	395mm	395mm
Trail	78.3mm high	75mm high	71.7mm high	65.1mm high
Mechanical Trail	73.8mm	70.9mm	68mm	62.1mm
Wheel Flop	24.7mm	23.1mm	21.6mm	18.7mm
Tire to Pedal Spindle	93mm 165 mm cranks	100mm 170 mm cranks	110mm 170 mm cranks	118mm 170 mm cranks
Pedal Spindle to Ground Clearance	126mm 165 mm cranks	121mm 170 mm cranks	121mm 170 mm cranks	121mm 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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2026 Pinnacle cerium Base

Geometry