2023/ONE BMC Switzerland Roadmachine X

	47	51	54	56	58	61
Stack	516mm	541mm	562mm	586mm	610mm	644mm
Reach	374mm	382mm	386mm	390mm	394mm	398mm
Stack to Reach Ratio	1.38:1	1.42:1	1.46:1	1.5:1	1.55:1	1.62:1
Seat Tube Length, C-T	420mm	457mm	500mm	522mm	539mm	573mm
Top Tube Length, Effective/Horizontal Unknown	522mm	532mm	546mm	556mm	568mm	583mm
Top Tube Slope	12.9deg	11.3deg	8.8deg	8.9deg	9.6deg	9.5deg
Head Tube Angle	71.2deg	71.2deg	72deg	72deg	72deg	72deg
Seat Tube Angle	74.2deg	74.2deg	74.2deg	74.2deg	74.2deg	74.2deg
Head Tube Length	112mm	139mm	156mm	181mm	206mm	242mm
Bottom Bracket Drop	71mm	71mm	71mm	71mm	71mm	71mm
Bottom Bracket Height	272mm	272mm	272mm	272mm	272mm	272mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	403.8mm	403.8mm	403.8mm	403.8mm	403.8mm	403.8mm
Front-Center	583mm	599mm	597mm	609mm	621mm	635mm
Front-Center Horizontal	578.2mm	595.2mm	593.2mm	604.2mm	616.2mm	631.2mm
Wheelbase	982mm	999mm	997mm	1008mm	1020mm	1035mm
Fork Offset/Rake	50mm	50mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	375mm	375mm	375mm	375mm	375mm	375mm
Trail	64mm mid/neutral	64mm mid/neutral	64.1mm mid/neutral	64.1mm mid/neutral	64.1mm mid/neutral	64.1mm mid/neutral
Mechanical Trail	60.5mm	60.5mm	61mm	61mm	61mm	61mm
Wheel Flop	19.5mm	19.5mm	18.9mm	18.9mm	18.9mm	18.9mm
Standover Height	719mm	750mm	782mm	805mm	63mm	859mm
Tire to Pedal Spindle	70mm 170 mm cranks	86mm 170 mm cranks	81.5mm 172.5 mm cranks	93.5mm 172.5 mm cranks	103mm 175 mm cranks	117mm 175 mm cranks
Pedal Spindle to Ground Clearance	102mm 170 mm cranks	102mm 170 mm cranks	99.5mm 172.5 mm cranks	99.5mm 172.5 mm cranks	97mm 175 mm cranks	97mm 175 mm cranks

	47	51	54	56	58	61
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	32mm	32mm	32mm	32mm	32mm	32mm
Tire Width Max	33mm	33mm	33mm	33mm	33mm	33mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1668mm	1685mm	1683mm	1694mm	1706mm	1721mm
Crank Length	170mm	170mm	172.5mm	172.5mm	175mm	175mm
Handlebar Width	400mm	420mm	420mm	420mm	420mm	440mm
Stem Length	80mm	90mm	100mm	100mm	110mm	110mm

Published Sizing Recommendations

Height

166 cm

174 cm

172 cm

180 cm

178 cm

186 cm

184 cm

192 cm

190 cm

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.bmc-switzerland.com/intl_en/roadmachine-x-one.html