A few years ago you could easily match frame sized from one manufacturer to another ie a 54 cm frame from one manufacturer was the same as a 54cm from another and frame sizes were always measured centre of bottom bracket to centre of top tube and all top tubes were horizontal.

Since the arrival of compact (sloping top tube) frame geometry that has changed, different manufacturers quote frame sizes very differently. As this gives more scope to adjust the saddle height more important now is the top tube length of the bike.  Hence if you tell us your current frame size please let us know what manufacturer it is and also your height.

Below we give you a guide to the frame sizes we have on our rental fleet.

Dolan Bikes – We have all sizes in the Dolan Mythos and Etape

Dolan SizeActual BB to top seatpostHorizontal top tubeRecommendedRecommended
S44535' to 5'71m52 to 1m70
M4854.55'7 to 5'101m70 to 1m78
L52565'10 to 6'1m78 to 1m83
XL56596' to 6'51m83 to 1m96

BH Hautecam

BH SizingBB to top of seat tubeHorizontal Top Tube lengthRecomended ftRecomended m
ME4444520
L4949550
XL5454580