2023 BMC Switzerland 257 AL Three

	S	S	S	S - Real	M	M	L	L	XL	XL
Stack	560mm	560mm	590mm	590mm	590mm	590mm	620mm	620mm	650mm	650mm
Reach	400mm	400mm	390mm	390mm	415mm	415mm	425mm	425mm	440mm	440mm
Stack to Reach Ratio	1.4:1	1.4:1	1.51:1	1.51:1	1.42:1	1.42:1	1.46:1	1.46:1	1.48:1	1.48:1
Seat Tube Length, Unknown	480mm	480mm	450mm	450mm	510mm	510mm	540mm	540mm	555mm	555mm
Top Tube Length, Unknown	560mm	560mm	559mm	559mm	584mm	584mm	603mm	603mm	626mm	626mm
Top Tube Slope	10.5deg	10.5deg	17deg	17deg	10.2deg	10.2deg	10deg	10deg	11.1deg	11.1deg
Head Tube Angle	70deg	70deg	70deg	70deg	70deg	70deg	70deg	70deg	70deg	70deg
Seat Tube Angle	74deg	74deg	74deg	74deg	74deg	74deg	74deg	74deg	74deg	74deg
Head Tube Length	133mm	133mm	165mm	165mm	165mm	165mm	197mm	197mm	229mm	229mm
Bottom Bracket Drop	67mm	67mm	67mm	67mm	67mm	67mm	67mm	67mm	67mm	67mm
Bottom Bracket Height	281mm	281mm	281mm	281mm	281mm	281mm	281mm	281mm	281mm	281mm
Chainstay Length	440mm	440mm	—	440mm	440mm	440mm	440mm	440mm	440mm	440mm
Chainstay Length Horizontal	434.9mm	434.9mm	—	434.9mm	434.9mm	434.9mm	434.9mm	434.9mm	434.9mm	434.9mm
Front-Center	631mm	631mm	632mm	632mm	657mm	657mm	677mm	677mm	703mm	703mm
Front-Center Horizontal	627.1mm	627.1mm	628.4mm	628.1mm	653.1mm	653.1mm	674.1mm	674.1mm	700.1mm	700.1mm
Wheelbase	1062mm	1062mm	1063mm	1063mm	1088mm	1088mm	1109mm	1109mm	1135mm	1135mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	408mm	408mm	408mm	408mm	408mm	408mm	408mm	408mm	408mm	408mm
Trail	78.8mm high	78.8mm high	78.8mm high	78.8mm high	78.8mm high	78.8mm high	78.8mm high	78.8mm high	78.8mm high	78.8mm high
Mechanical Trail	74mm	74mm	74mm	74mm	74mm	74mm	74mm	74mm	74mm	74mm
Wheel Flop	25.3mm	25.3mm	25.3mm	25.3mm	25.3mm	25.3mm	25.3mm	25.3mm	25.3mm	25.3mm
Standover Height	760mm	760mm	644mm	644mm	790mm	790mm	819mm	819mm	838mm	838mm
Tire to Pedal Spindle	113mm 170 mm cranks	113mm 170 mm cranks	114mm 170 mm cranks	114mm 170 mm cranks	139mm 170 mm cranks	139mm 170 mm cranks	154mm 175 mm cranks	154mm 175 mm cranks	180mm 175 mm cranks	180mm 175 mm cranks
Pedal Spindle to Ground Clearance	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	106mm 175 mm cranks	106mm 175 mm cranks	106mm 175 mm cranks	106mm 175 mm cranks

	S	S	S	S - Real	M	M	L	L	XL	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	37mm	37mm	37mm	37mm	37mm	37mm	37mm	37mm	37mm	37mm
Tire Width Max	42mm	42mm	42mm	42mm	42mm	42mm	42mm	42mm	42mm	42mm
Tire Outer Diameter	696mm	696mm	696mm	696mm	696mm	696mm	696mm	696mm	696mm	696mm
Bike Length with Tires	1758mm	1758mm	1759mm	1759mm	1784mm	1784mm	1805mm	1805mm	1831mm	1831mm
Crank Length	170mm	170mm	170mm	170mm	170mm	170mm	175mm	175mm	175mm	175mm
Handlebar Width	600mm	600mm	600mm	600mm	600mm	600mm	600mm	600mm	600mm	600mm
Stem Length	90mm	90mm	90mm	90mm	90mm	90mm	100mm	100mm	100mm	100mm
Stem Angle	8deg	8deg	8deg	8deg	8deg	8deg	8deg	8deg	8deg	8deg

Published Sizing Recommendations

Height

14 ft 0 in

155 cm

170 cm

12 ft 11 in

14 ft 2 in

14 ft 0 in

14 ft 10 in

15 ft 10 in

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

Commuter

Source:https://www.bmc-switzerland.com/eu_en/bmc-257-al-three-23.html, https://www.bmc-switzerland.com/us_en/bmc-257-al-one-st-23.html, https://www.bmc-switzerland.com/ch_fr/bmc-257-al-three-st-23.html

Suggest Bike Edit

2023 BMC Switzerland 257 AL Three

Geometry

Three Build

Published Sizing Recommendations

Stack and Reach vs. Category Trend