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	BMC Alpenchallenge AC01 2017: L	GT Grade Alloy 2018: L (56)	Orbea Gain M 2018: L
Choose Baseline
Reach	352	403	455
Stack	527	554	672
Top Tube (effective)	539	659	599
Seat Tube C-T	524	555	497
Head Angle	85	78	68
Seat Angle	73	63	63
Head Tube	160	190	156
Chainstay	489	435	455
Wheelbase	851	828	1143
Front Centre	517	556
Standover	850	912	625
BB Drop	71 +/-5	75	68
BB Height			233
Fork Rake / Offset	52	36	50
Trail	55
Fork Length (A2C)	443		368
Seatpost Length	291
Handlebar Width	499
Stem Length	119
Stem Angle	±12
Crank Length	149
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	BMC Alpenchallenge AC01 2017: L	GT Grade Alloy 2018: L (56)	Orbea Gain M 2018: L

Image showing geometry measurements

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