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Geometry

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Reach 453 449 516 567
Stack 681 621 615 736
Top Tube (effective) 667 623 521 649
Seat Tube C-C 337 493 423 560
Head Angle 54 79 75 75
Seat Angle 81 80 69 60
Head Tube 85 76 117 111
Chainstay 389 516 425 490
Wheelbase 1284 1273 1338 1264
Front Centre 779 598 887 862
Standover 690 734 656 659
BB Drop 63 54 58 59
Fork Rake / Offset 35 47 48 37
Trail 130 117 110 103
Fork Length (A2C) 613 428 609 443
Wheel Size 26 34 34 24
Tyre Max Width 667 764 723 789
Seatpost Length 269 250 298 323
Max Post Insertion 99 90 114 126
Seatpost Offset 0 0 0 0
Handlebar Width 746 895 655 861
Stem Length 40 56 70 83
Stem Angle -4 -4 -4 -5
Front Travel 94 115 92 115
Rider Height <172 172-182 180-188 >188
Data Source BMC Fourstroke 01 THREE 2026 BMC Fourstroke 01 THREE 2026 BMC Fourstroke 01 THREE 2026 BMC Fourstroke 01 THREE 2026

Standard measurements are in millimeters and degrees. The site attempts to recognize and convert other units back to standard - results may vary.

Image showing geometry measurements

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