2025 Luma Meridian Titanium

	49	52	54	56	58
Stack	544mm	565mm	581mm	597mm	611mm
Reach	364mm	373mm	384mm	393mm	399mm
Stack to Reach Ratio	1.49:1	1.51:1	1.51:1	1.52:1	1.53:1
Seat Tube Length, C-T	470mm	500mm	520mm	540mm	560mm
Top Tube Length, Effective/Horizontal HT Top	515mm	535mm	556mm	570mm	580mm
Top Tube Slope	10.5deg	9.4deg	8.8deg	8.3deg	7.6deg
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	588mm	599mm	610mm	619mm	630mm
Front-Center Horizontal	582.7mm	594.7mm	605.7mm	614.7mm	625.7mm
Wheelbase	1011mm	1023mm	1034mm	1043mm	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	62mm 170 mm cranks	73mm 170 mm cranks	84mm 170 mm cranks	93mm 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.

Category Trend

Source:https://lumacycles.com/products/meridian?variant=50199540760876

Geometry