Measuring

	Remove Wheels
A.	Turn handle bars through 90 degrees, measure from the rear mech. to the front of the bike. This measurement should be taken alone the chain stays to either the front forks or the handle bars (depending on which is the longest measurement).
B.	Measure from the top of the saddle to the bottom of the largest chain ring - without dropping the saddle
C.	The measurements gained in A and B will produce an imaginary rectangle.
D.	Measure from the rear mech. to the front of the largest chain ring. (for the chain cover)