Originally Posted by
Inpd
Hang on there! I said you couldn't determine fit from the Venturi geo chart since it was so ambigious in how things are measured and did NOT mention stack and reach.
It isn't ambiguous at all. Seat tube length is totally irrelevant on a compact geometry frame so it doesn't matter how they measure that. Effective top tube is only measured one way and is given. Head tube length is only measured one way and is give. The seat tube and head tube angles are only measured one way and are given. Yes, stack and reach aren't obvious, but the tube lengths and angles should suffice for a fit.