	48	51	54	S	56	M	58	61	L	XL
Stack	520mm	540mm	560mm	555mm	580mm	574mm	600mm	620mm	595mm	614mm
Reach	363mm	369mm	376mm	385mm	383mm	393mm	390mm	396mm	405.5mm	416mm
Stack to Reach Ratio	1.43:1	1.46:1	1.49:1	1.44:1	1.51:1	1.46:1	1.54:1	1.57:1	1.47:1	1.48:1
Seat Tube Length, C-T	449mm	488mm	540mm	445mm	560mm	480mm	580mm	610mm	520mm	550mm
Top Tube Length, Effective/Horizontal Center	510mm	521mm	540mm	533.6mm	558mm	558mm	575mm	594mm	576mm	592mm
Top Tube Slope	10.3deg	8deg	4.5deg	14.1deg	4.6deg	12.1deg	4.7deg	3.8deg	9.8deg	8.6deg
Head Tube Angle	70deg	71deg	71deg	71deg	71deg	71.2deg	71deg	71deg	71.2deg	71.2deg
Seat Tube Angle	74.3deg	74.3deg	73.7deg	74deg	73.3deg	74deg	72.9deg	72.3deg	74deg	74deg
Head Tube Length	86mm	108mm	132mm	115mm	153mm	135mm	177mm	198mm	157mm	177mm
Bottom Bracket Drop	77mm	72mm	69mm	80mm	69mm	80mm	67mm	67mm	80mm	80mm
Bottom Bracket Height	284mm	289mm	292mm	281mm	292mm	281mm	294mm	294mm	281mm	281mm
Chainstay Length	435mm	435mm	435mm	435mm	435mm	435mm	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	428.1mm	429mm	429.5mm	427.6mm	429.5mm	427.6mm	429.8mm	429.8mm	427.6mm	427.6mm
Front-Center	588mm	593mm	607mm	612mm	621mm	625mm	636mm	648mm	644mm	661mm
Front-Center Horizontal	582.9mm	588.6mm	603.1mm	606.8mm	617.2mm	619.9mm	632.5mm	644.5mm	639mm	656.1mm
Wheelbase	1011.1mm	1017.6mm	1032.6mm	1034.3mm	1046.7mm	1047.4mm	1062.3mm	1074.3mm	1066.6mm	1083.7mm
Wheelbase Max	1011mm	1018mm	1033mm	1034mm	1047mm	1047mm	1062mm	1075mm	1066mm	1083.5mm
Fork Offset/Rake	55mm	55mm	55mm	55mm	55mm	55mm	55mm	55mm	55mm	55mm
Fork Length, Unknown	405mm	405mm	405mm	405mm	405mm	405mm	405mm	405mm	405mm	405mm
Trail	72.9mm high	66.1mm high	66.1mm high	66.1mm high	66.1mm high	64.8mm mid/neutral	66.1mm high	66.1mm high	64.8mm mid/neutral	64.8mm mid/neutral
Mechanical Trail	68.5mm	62.5mm	62.5mm	62.5mm	62.5mm	61.3mm	62.5mm	62.5mm	61.3mm	61.3mm
Wheel Flop	23.4mm	20.4mm	20.4mm	20.4mm	20.4mm	19.8mm	20.4mm	20.4mm	19.8mm	19.8mm
Tire to Pedal Spindle	57mm 170 mm cranks	62mm 170 mm cranks	76mm 170 mm cranks	81mm 170 mm cranks	90mm 170 mm cranks	94mm 170 mm cranks	105mm 170 mm cranks	117mm 170 mm cranks	113mm 170 mm cranks	130mm 170 mm cranks
Pedal Spindle to Ground Clearance	114mm 170 mm cranks	119mm 170 mm cranks	122mm 170 mm cranks	111mm 170 mm cranks	122mm 170 mm cranks	111mm 170 mm cranks	124mm 170 mm cranks	124mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks

	48	51	54	S	56	M	58	61	L	XL
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	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm
Tire Width Max	57mm	57mm	57mm	57mm	57mm	57mm	57mm	57mm	57mm	57mm
Tire Outer Diameter	722mm	722mm	722mm	722mm	722mm	722mm	722mm	722mm	722mm	722mm
Bike Length with Tires	1733.1mm	1739.6mm	1754.6mm	1756.3mm	1768.7mm	1769.4mm	1784.3mm	1796.3mm	1788.6mm	1805.7mm

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

All-road/Gravel

Source:www.mondincecycle.com, www.mondincecycle.com

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2026 Mondince FM 346 Base

Geometry

Base Build

Stack and Reach vs. Category Trend