	XS	XS	S	S	M	M	L	L	XL	XL	XXL
Stack	505mm	505mm	523mm	523mm	541mm	541mm	559mm	559mm	577mm	595mm	595mm
Reach	373.5mm	373.5mm	380mm	380mm	386.5mm	386.5mm	393mm	393mm	400mm	408mm	408mm
Stack to Reach Ratio	1.35:1	1.35:1	1.38:1	1.38:1	1.4:1	1.4:1	1.42:1	1.42:1	1.44:1	1.46:1	1.46:1
Seat Tube Length, C-T	450mm	—	480mm	—	510mm	—	530mm	—	—	570mm	—
Seat Tube Length, C-C	445mm	—	475mm	—	505mm	—	525mm	—	—	565mm	—
Seat Tube Length, Unknown	—	44.5mm	—	47.5mm	—	50.5mm	—	52.5mm	54.5mm	—	56.5mm
Seat Tube Length, Effective Unknown	—	45mm	—	48mm	—	51mm	—	53mm	55mm	—	57mm
Top Tube Length, Effective/Horizontal Center	508mm	50.8mm	526mm	52.6mm	542mm	54.2mm	559mm	55.9mm	57.6mm	590mm	59mm
Top Tube Slope	8.2deg	50.2deg	6.8deg	50.6deg	5.5deg	50.9deg	5.3deg	51.3deg	51.6deg	5deg	51.9deg
Head Tube Angle	70.6deg	70.6deg	71.5deg	71.5deg	72deg	72deg	72.5deg	72.5deg	73deg	73.5deg	73.5deg
Seat Tube Angle	75.2deg	75.2deg	74.5deg	74.5deg	74deg	74deg	73.5deg	73.5deg	73deg	73deg	73deg
Head Tube Length	99mm	9.9mm	115mm	11.5mm	132mm	13.2mm	149mm	14.9mm	16.6mm	183mm	18.3mm
Bottom Bracket Drop	75mm	—	75mm	—	75mm	—	75mm	—	—	75mm	—
Bottom Bracket Height	266mm	—	266mm	—	266mm	—	266mm	—	—	266mm	—
Chainstay Length	411mm	41.1mm	411mm	41.1mm	411mm	41.1mm	411mm	41.1mm	41.3mm	413mm	41.3mm
Chainstay Length Horizontal	404.1mm	—	404.1mm	—	404.1mm	—	404.1mm	—	—	406.1mm	—
Front-Center	581.3mm	—	585.8mm	—	593.6mm	—	601mm	—	—	616.9mm	—
Front-Center Horizontal	576.4mm	—	581mm	—	588.8mm	—	596.3mm	—	—	612.4mm	—
Wheelbase	980.5mm	980.5mm	985.1mm	985.1mm	992.9mm	992.9mm	1000.4mm	1000.4mm	1010.1mm	1018.5mm	1018.5mm
Fork Offset/Rake	48.6mm	—	48.5mm	—	48.4mm	—	48.4mm	—	—	48.3mm	—
Trail	68.6mm high	— —	63mm mid/neutral	— —	59.9mm mid/neutral	— —	56.8mm mid/neutral	— —	— —	50.7mm mid/neutral	— —
Mechanical Trail	64.7mm	—	59.7mm	—	57mm	—	54.2mm	—	—	48.6mm	—
Wheel Flop	21.5mm	—	19mm	—	17.6mm	—	16.3mm	—	—	13.8mm	—
Tire to Pedal Spindle	70.3mm 170 mm cranks	— 170 mm cranks	74.8mm 170 mm cranks	— 170 mm cranks	82.6mm 170 mm cranks	— 170 mm cranks	90mm 170 mm cranks	— 170 mm cranks	— 170 mm cranks	105.9mm 170 mm cranks	— 170 mm cranks
Pedal Spindle to Ground Clearance	96mm 170 mm cranks	— 170 mm cranks	96mm 170 mm cranks	— 170 mm cranks	96mm 170 mm cranks	— 170 mm cranks	96mm 170 mm cranks	— 170 mm cranks	— 170 mm cranks	96mm 170 mm cranks	— 170 mm cranks

	XS	XS	S	S	M	M	L	L	XL	XL	XXL
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	700C/29 in 622 mm BSD
Tire Width	30mm	30mm	30mm	30mm	30mm	30mm	30mm	30mm	30mm	30mm	30mm
Tire Width Max	34mm	—	34mm	—	34mm	—	34mm	—	—	34mm	—
Tire Outer Diameter	682mm	682mm	682mm	682mm	682mm	682mm	682mm	682mm	682mm	682mm	682mm
Bike Length with Tires	1662.5mm	1662.5mm	1667.1mm	1667.1mm	1674.9mm	1674.9mm	1682.4mm	1682.4mm	1692.1mm	1700.5mm	1700.5mm

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

Performance Road

Source:www.wilier.com, www.wilier.com

Suggest Bike Edit

2026 Wilier Triestina Filante ID2 SLR

Geometry

SLR Build

Stack and Reach vs. Category Trend