2024 AURUM Magma Base

	48	51	54	56	58
Stack	505mm	525mm	545mm	570mm	592mm
Reach	371mm	377mm	386mm	393mm	401mm
Stack to Reach Ratio	1.36:1	1.39:1	1.41:1	1.45:1	1.48:1
Seat Tube Length, C-T	435mm	466mm	502mm	526mm	549mm
Top Tube Length, Effective/Horizontal Center	506mm	527mm	542mm	562mm	579mm
Top Tube Slope	10deg	8.7deg	6.8deg	6.9deg	6.8deg
Head Tube Angle	71.8deg	72deg	73.1deg	73.1deg	73.2deg
Seat Tube Angle	75deg	74deg	74deg	73.5deg	73.25deg
Head Tube Length	103mm	126mm	140mm	166mm	189mm
Bottom Bracket Drop	74mm	71mm	71mm	71mm	71mm
Bottom Bracket Height	265mm	268mm	268mm	268mm	268mm
Chainstay Length	408mm	408mm	410mm	410mm	410mm
Chainstay Length Horizontal	401.2mm	401.8mm	403.8mm	403.8mm	403.8mm
Front-Center	570mm	581mm	580mm	595mm	608mm
Front-Center Horizontal	565.8mm	577.2mm	576.2mm	590.2mm	604.2mm
Wheelbase	967mm	979mm	980mm	994mm	1008mm
Fork Offset/Rake	50mm	50mm	44mm	44mm	44mm
Fork Length (On-Axis)	370mm	370mm	370mm	370mm	370mm
Trail	58.8mm mid/neutral	57.6mm mid/neutral	57mm mid/neutral	57mm mid/neutral	56.4mm mid/neutral
Mechanical Trail	55.9mm	54.8mm	54.6mm	54.6mm	54mm
Wheel Flop	17.5mm	16.9mm	15.9mm	15.9mm	15.6mm
Standover Height	721mm	751mm	780mm	804mm	826mm
Tire to Pedal Spindle	61mm 170 mm cranks	72mm 170 mm cranks	71mm 170 mm cranks	86mm 170 mm cranks	99mm 170 mm cranks
Pedal Spindle to Ground Clearance	95mm 170 mm cranks	98mm 170 mm cranks	98mm 170 mm cranks	98mm 170 mm cranks	98mm 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://aurumbikes.com/size-guide/

Geometry