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@ewanmac
Humph I'm not with my bike at the moment but if I guess my saddle-BB length as being about 80cm, and I compare the seat tube angles for the Macinato (73.5°) and the P2 (78°) then I would need to move the saddle about 60mm further forward to get the same position relative to the BB (I'm not sure even Gaston can achieve that!?). I'll need to do some more measuring and trigonometry to work out the details for my front end.