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	BMC Alpenchallenge AC01 2017: L	GT Grade Alloy 2018: L (56)	Orbea Gain M 2018: L
Choose Baseline
Reach	390	389	434
Stack	641	500	621
Top Tube (effective)	557	670	638
Seat Tube C-T	486	662	551
Head Angle	59	66	74
Seat Angle	87	75	68
Head Tube	143	201	167
Chainstay	392	426	385
Wheelbase	844	868	832
Front Centre	608	558
Standover	702	928	880
BB Drop	71 +/-5	67	75
BB Height			325
Fork Rake / Offset	42	45	50
Trail	65
Fork Length (A2C)	376		424
Seatpost Length	409
Handlebar Width	562
Stem Length	100
Stem Angle	±12
Crank Length	150
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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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