Fork Rake 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3 4.3. Stack 502 525 527 551 545 569 564 588 579 603 600 624. Seat Tube Angle 74.5 74.5 74 74 73.5 73.5 73 73 73 73 72.5 72.5. Head Angle 71.5 71.5 72.5 72.5 73 73 73.5 73.5 73.5 73.5 73.5 73.5.