2017 BMC Switzerland Roadmachine 02

	47	51	54	56	58	61
Stack	530mm	555mm	576mm	590mm	609mm	633mm
Reach	369mm	372mm	382mm	388mm	395mm	402mm
Stack to Reach Ratio	1.44:1	1.49:1	1.51:1	1.52:1	1.54:1	1.57:1
Seat Tube Length, C-T	420mm	464mm	507mm	522mm	539mm	573mm
Top Tube Length, Actual C-C	522mm	532mm	546mm	556mm	568mm	583mm
Top Tube Slope	14.6deg	12.3deg	9.6deg	9.4deg	9.5deg	8.3deg
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	95mm	122mm	138mm	154mm	173mm	198mm
Bottom Bracket Drop	71mm	71mm	71mm	71mm	71mm	71mm
Bottom Bracket Height	265mm	265mm	265mm	265mm	265mm	265mm
Chainstay Length	398mm	398mm	398mm	398mm	398mm	398mm
Chainstay Length Horizontal	391.6mm	391.6mm	391.6mm	391.6mm	391.6mm	391.6mm
Front-Center	583.7mm	595mm	597mm	608mm	622mm	636mm
Front-Center Horizontal	591.4mm	603.4mm	605.4mm	616.4mm	630.4mm	644.4mm
Wheelbase	983mm	995mm	997mm	1008mm	1022mm	1036mm
Wheelbase Max	983mm	995mm	997mm	1008mm	1022mm	1036mm
Fork Offset/Rake	50mm	50mm	45mm	45mm	45mm	45mm
Fork Length, Unknown	369mm	369mm	369mm	369mm	369mm	369mm
Trail	61.6mm mid/neutral	61.6mm mid/neutral	61.9mm mid/neutral	61.9mm mid/neutral	61.9mm mid/neutral	61.9mm mid/neutral
Mechanical Trail	58.3mm	58.3mm	58.8mm	58.8mm	58.8mm	58.8mm
Wheel Flop	18.8mm	18.8mm	18.2mm	18.2mm	18.2mm	18.2mm
Tire to Pedal Spindle	77.7mm 170 mm cranks	89mm 170 mm cranks	88.5mm 172.5 mm cranks	99.5mm 172.5 mm cranks	113.5mm 172.5 mm cranks	125mm 175 mm cranks
Pedal Spindle to Ground Clearance	95mm 170 mm cranks	95mm 170 mm cranks	92.5mm 172.5 mm cranks	92.5mm 172.5 mm cranks	92.5mm 172.5 mm cranks	90mm 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	25mm	25mm	25mm	25mm	25mm	25mm
Tire Outer Diameter	672mm	672mm	672mm	672mm	672mm	672mm
Bike Length with Tires	1655mm	1667mm	1669mm	1680mm	1694mm	1708mm
Crank Length	170mm	170mm	172.5mm	172.5mm	172.5mm	175mm
Handlebar Width	400mm	420mm	420mm	420mm	440mm	440mm
Stem Length	90mm	90mm	100mm	110mm	120mm	120mm
Stem Angle	6deg	6deg	6deg	6deg	6deg	6deg

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/archive + calculated chainstay

Geometry