2024 Wilier Triestina Gran Turismo SL Base

	XS	S	M	L	XL	XXL
Stack	527mm	546mm	566mm	586mm	604mm	625mm
Reach	369mm	374mm	379mm	384mm	389mm	395mm
Stack to Reach Ratio	1.43:1	1.46:1	1.49:1	1.53:1	1.55:1	1.58:1
Seat Tube Length, C-T	45mm	48mm	50mm	52mm	54mm	56mm
Seat Tube Length, C-C	43.8mm	46.7mm	48.6mm	50.5mm	52.4mm	54.3mm
Top Tube Length, Effective/Horizontal Center	51.7mm	53.2mm	54.7mm	55.8mm	57.4mm	59.2mm
Top Tube Slope	51.8deg	52.2deg	52.8deg	53.4deg	53.8deg	54.2deg
Head Tube Angle	71deg	71.5deg	72deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73.5deg	73deg	72.5deg
Head Tube Length	11.7mm	13.6mm	15.7mm	17.7mm	19.6mm	21.7mm
Bottom Bracket Height	—	—	—	—	—	—
Chainstay Length	42mm	42mm	42mm	42mm	42mm	42mm
Wheelbase	989mm	996mm	1003mm	1010mm	1021mm	1033mm
Trail	— —	— —	— —	— —	— —	— —
Mechanical Trail	—	—	—	—	—	—
Wheel Flop	—	—	—	—	—	—

	XS	S	M	L	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
Tire Width	28mm	28mm	28mm	28mm	28mm	28mm
Tire Width Max	32mm	32mm	32mm	32mm	32mm	32mm
Tire Outer Diameter	678mm	678mm	678mm	678mm	678mm	678mm
Bike Length with Tires	1667mm	1674mm	1681mm	1688mm	1699mm	1711mm

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://www.wilier.com/en/bikes/road/granturismo-sl?color=r12-white-blue

Geometry