SIZE Small (16) Medium (18) Large (20) xLarge (22) xxLarge (22L) Reach 397.7 414.8 429.0 438.3 448.9 Stack 580.1 589.5 608.3 627.2 641.3 Head Tube Angle 70.5 70.5 70.5 70.5 70.5 Head Tube Length 110.0 120.0 140.0 160.0 175.0 Seat Tube Length 406.4 457.2 508.0 558.8 558.8 BB Drop 60.0 60.0 60.0 60.0 60.0 Wheelbase 1073.4 1093.9 1114.8 1130.7 1146.4 Chainstay Length 450.0 450.0 450.0 450.0 450.0 Top Tube Length, Actual 555.2 570.8 590.2 607.3 620.6 Top Tube Length, Effective 575.0 595.5 615.0 630.0 645.0 Seat Tube Angle 73.0 73.0 73.0 73.0 73.0 Standover Height 771.1 800.1 833.8 868.0 875.0 Fork Length 447.0 447.0 447.0 447.0 447.0 Fork Rake 43.0 43.0 43.0 43.0 43.0