2023 Merlin Metalworks Extralight XLR Base

	46cm	48cm	52cm	54cm	56cm	58cm	60cm	64cm
Stack	515mm	526mm	548mm	561mm	580mm	599mm	618mm	638mm
Reach	365mm	365mm	370mm	375mm	385mm	395mm	405mm	415mm
Stack to Reach Ratio	1.41:1	1.44:1	1.48:1	1.5:1	1.51:1	1.52:1	1.53:1	1.54:1
Seat Tube Length, C-T	440mm	460mm	480mm	500mm	520mm	540mm	570mm	600mm
Top Tube Length, Effective/Horizontal Center	517mm	521mm	532mm	541mm	557mm	573mm	588mm	605mm
Top Tube Slope	10.8deg	9.7deg	9.8deg	9deg	8.7deg	8.4deg	7.2deg	6.1deg
Head Tube Angle	71deg	71.5deg	72.5deg	73deg	73deg	73deg	73deg	73deg
Seat Tube Angle	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg	73.5deg
Bottom Bracket Drop	73mm	73mm	73mm	73mm	73mm	73mm	73mm	73mm
Bottom Bracket Height	263mm	263mm	263mm	263mm	263mm	263mm	263mm	263mm
Chainstay Length	415mm	415mm	415mm	415mm	415mm	415mm	420mm	425mm
Chainstay Length Horizontal	408.5mm	408.5mm	408.5mm	408.5mm	408.5mm	408.5mm	413.6mm	418.7mm
Front-Center	573.1mm	573.1mm	576.1mm	576.1mm	591mm	605.9mm	621.7mm	637.5mm
Front-Center Horizontal	568.5mm	568.5mm	571.5mm	571.5mm	586.5mm	601.5mm	617.4mm	633.3mm
Wheelbase	977mm	977mm	980mm	980mm	995mm	1010mm	1031mm	1052mm
Fork Offset/Rake	48.5mm	49.2mm	49.3mm	45.2mm	44.4mm	43.7mm	43.8mm	43.6mm
Trail	64.4mm mid/neutral	60.5mm mid/neutral	54.2mm mid/neutral	55.5mm mid/neutral	56.3mm mid/neutral	57.1mm mid/neutral	57mm mid/neutral	57.2mm mid/neutral
Mechanical Trail	60.9mm	57.4mm	51.7mm	53mm	53.8mm	54.6mm	54.5mm	54.7mm
Wheel Flop	19.8mm	18.2mm	15.6mm	15.5mm	15.7mm	16mm	15.9mm	16mm
Tire to Pedal Spindle	67.1mm 170 mm cranks	67.1mm 170 mm cranks	70.1mm 170 mm cranks	70.1mm 170 mm cranks	85mm 170 mm cranks	99.9mm 170 mm cranks	115.7mm 170 mm cranks	131.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	93mm 170 mm cranks	93mm 170 mm cranks	93mm 170 mm cranks	93mm 170 mm cranks	93mm 170 mm cranks	93mm 170 mm cranks	93mm 170 mm cranks	93mm 170 mm cranks

	46cm	48cm	52cm	54cm	56cm	58cm	60cm	64cm
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	25mm	25mm	25mm	25mm	25mm	25mm	25mm	25mm
Tire Outer Diameter	672mm	672mm	672mm	672mm	672mm	672mm	672mm	672mm
Bike Length with Tires	1649mm	1649mm	1652mm	1652mm	1667mm	1682mm	1703mm	1724mm

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Endurance Road

Source:https://www.merlinbikes.com/road-bikes

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2023 Merlin Metalworks Extralight XLR Base

Geometry

Base Build

Stack and Reach vs. Category Trend