2021 Miracle Bike CR039 Base

	490	520	540	560	580
Stack	535.2mm	551.2mm	571.2mm	586.1mm	601.5mm
Reach	346mm	361.1mm	370mm	375.4mm	387.8mm
Stack to Reach Ratio	1.55:1	1.53:1	1.54:1	1.56:1	1.55:1
Seat Tube Length, C-TTT	479mm	499mm	529mm	549mm	569mm
Top Tube Length, Effective/Horizontal Unknown	520mm	545mm	555mm	565mm	580mm
Top Tube Slope	6.6deg	6.1deg	5.1deg	4.7deg	4.3deg
Head Tube Angle	69deg	70deg	70.5deg	70.5deg	71deg
Seat Tube Angle	73.5deg	73deg	72.5deg	72deg	71.5deg
Head Tube Length	115mm	133mm	153mm	168mm	180mm
Bottom Bracket Drop	63mm	63mm	63mm	63mm	63mm
Bottom Bracket Height	288mm	288mm	288mm	288mm	288mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	420.3mm	420.3mm	420.3mm	420.3mm	420.3mm
Front-Center	563mm	586.5mm	600mm	609.5mm	616.5mm
Front-Center Horizontal	560.7mm	585.7mm	597.7mm	607.7mm	614.7mm
Wheelbase	981mm	1006mm	1018mm	1028mm	1035mm
Fork Offset/Rake	55mm	55mm	55mm	55mm	55mm
Fork Length, Unknown	398mm	398mm	398mm	398mm	398mm
Trail	75.8mm high	69.2mm high	66mm high	66mm high	62.7mm mid/neutral
Mechanical Trail	70.8mm	65.1mm	62.2mm	62.2mm	59.3mm
Wheel Flop	25.4mm	22.3mm	20.8mm	20.8mm	19.3mm
Tire to Pedal Spindle	42mm 170 mm cranks	65.5mm 170 mm cranks	79mm 170 mm cranks	88.5mm 170 mm cranks	95.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	118mm 170 mm cranks	118mm 170 mm cranks	118mm 170 mm cranks	118mm 170 mm cranks	118mm 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.

Category Trend

Source:https://www.miraclecycling.com/gravel-cx-bike-frame/miracle-super-light-gravel-carbon-frame.html

Geometry