Size 

A

D 

B 

F 

X° 

C-T 

S 

500

405

507

120

740

M 

530

405

530

130

735

L 

560

405

552

150

730

XL 

600

405

577

170

725

A (C-T) = Seat Tube (measured center-top)

D = Bracket - Rear Axle

B = Top Tube (measured center-center)